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Hi,
I just bought my Kaiser 4 days ago.
I am using the bluetooth adn an SDHC card.
My problem is, following: the batter goes every day empty! I unplugged from the charger 4hours (I was using the phone for one our), and the batter is on 34%.
Do you have the same problem or my batter is wrong?
tnx:
Adrián
Wow, really fast battery drain.
No, I dont have that fast drain.
Do you use data connection all the time? Wi-fi? 3G?
Backlight? Power off when device is not used ...
Worth to check.
I switched off the online data connection and the 3G..
I jut pulled off the SDHC card for testing the battery...
I hope it will help..
How often do you charge the battery, and how long do you use the phone per day?
It depends ... between 1 or 2 days ... and I usually charge when it is at 30% - 50%, during evening.
And I use 3G for browsing the internet for now and then randomly also MSN/Yahoo chat.
I suggest to hard-reset, and run your phone without any app installed.
Then see the battery drain.
big source of battery drain for me was the WiFi and the push email.
I have also noticed the battery drains pretty damn fast. Much faster than my wizard it would seem. I am slowly disabling things to see if I can find the source. Otherwise I am calling HTC and getting a new battery.
Are you leaving Bluetooth on? That will drain the battery pretty quick
Pooper said:
Are you leaving Bluetooth on? That will drain the battery pretty quick
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Click to collapse
Nope - no bluetooth - no push email. Its very wierd.
sorry i was referring to the OP
I am using the Spb GPRS Monitor.... Does it need extra battery power?
Pooper said:
Are you leaving Bluetooth on? That will drain the battery pretty quick
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Click to collapse
I think that is not correct. Bluetooth hardly has any influence on the battery drain.
You can leave it on for ever.
But do a test yourselve.
1. Load the battery 100 %
2. Set bluetooth on or of and put your baby to sleep for 8 hours.
3. Check the battery situation in the morning, the first time you start using it. You should, in 8 hours, not have lost more that 4 till 5%.
That is with GPRS and no 3G or HSDPA. I did not test that, but...
You will see that a night with, or without, makes hardly any diiference.
But maybe I am wrong.
My personal experience is that using GPRS ( Phone=GSM only) is the most efficient. Especially if you have Messenger on the whole time.
Huib
Hi
When Bluetooth is on the device will not go into standby even if the screen appears dark as Bluetooth needs the OS to be alive to work, so if you have programs loaded that are using CPU cycles the battery will drain quickly as these programs will run continually.
Regards
Phil
The only thing that I am saying is that my phone, in 8 hours, with bluetooth on, uses max 4% of battery drain. With blutooth off I see no difference.
The phone is in sleeping mode, so people can call me. What else can I say?
So I cannot say that Bluetooth drains my battery faster. At least not visible to me.
I tested did a long time ago with several systems. the last one, before my Tytn II came was on blootooth its whole life. And now again I see the same at my little kaiser.
Huib
P.s. and then this.
I see as standbye the situation, that I only can switch it back on with sliding the keyboard or the power switch. If other keys do not react, is in't this standbye? The rest of the discussion I prefer to leave to better specialists on this forum
herpi said:
The rest of the discussion I prefer to leave to better specialists on this forum
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How rude!
Lol... i think he meant others than himself not the other poster.
darkilici said:
Lol... i think he meant others than himself not the other poster.
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Click to collapse
Absolutely.
Huib
For Best battery life you should make a false Push email and set it to check manualy there is info on google about how to do this. thats only if you dont use exchange. Also NO bluetooth yes it does suck lots of juice! Also make sure you dissable the IR connections that also sucks juice. there are also power saving reg tweaks in the registy that you can find in the Wiki
There is no I/R in Kaiser, and BT standby seems to draw very little. I leave mine all the time, I loose about 5% battery overnight. WiFi is a completely different story, it's a power PIG.
austinsnyc said:
For Best battery life you should make a false Push email and set it to check manualy there is info on google about how to do this. thats only if you dont use exchange. Also NO bluetooth yes it does suck lots of juice! Also make sure you dissable the IR connections that also sucks juice. there are also power saving reg tweaks in the registy that you can find in the Wiki
Click to expand...
Click to collapse
I still disagree.
When bluetooth is just ON and not connected to any device it hardly consums power. (IMHO)
Do a simple test and let it on for a night sleep with and without bluetooth.
When connected to a headset or whatever it of course consumes.
Pls tell me the difference.,
http://forum.xda-developers.com/showthread.php?t=305518&highlight=battery
Huib
I have had my TyTN II since Tuesday the 25th - so only 2 days now. I pulled the phone out of the charger at 6:50am this morning. I have WiFi turned OFF (only use at night when I am surfing while watching TV). I have BlueTooth off. I do have BB Connect installed and running with 1 BES account and 3 BIS accounts. I was on the phone for maybe 5 total minutes so far this morning - and I surfed for like 10 minutes via EDGE on the way to work. I do have SPB Mobile Shell 1.5 installed, but from what I read it doesn't effect battery life. I have the unit set to shut the screen off after 2 minutes....and my LCD brightness is at like 70% or so.
With all this - as of 10:35am this morning - I am already down to 75% battery. At this rate, the phone will be dead before 5pm....! Not even a full day.
Man - I hope this gets better because I can't run my life with phone plugged in half the day just so it will last me!
Yo
heres a brutally simple battery monitor software thingy that graphs your usage and battery level - top graph is mAh usage (15000ms refresh (os updates info every 30 secs)) and bottom graph is battery life (60000ms refresh)
i wrote this thing to monitor my batt usage cause my bat life is utter crap, barely lasts 8 hours with my level of use/cellular climate, which sucks its just a straight up .exe, just copy to where-ever and run it
this version here is so pre-alpha-uber-dev-debug-build its not funny but i thought id put it up for you lot anyway as i have found it useful just to glance at from time to time - there are no user controls, i spazzed this out in a hurry but i intend to improve on it and implement any features you lot might think useful.
best i can get out of my raph with screen on with celluar, gprs and bt ad2p connected is -63mAh - whats the best you can get?
just tryin to put smt back into the community <3
p.s. this is a debug build (i kept getting microsoft error reporting crap on the emulator, so i dunno how itll go on other devices)
p.p.s. i take no responsibility if this bricks your device, sleeps with your wife, sets your house on fire or kills your cat etc etc (but it works ok on my raph
***UPDATED 25.03.09***
SEE POST #9 IN THIS THREAD BELOW
going to try this out soon, loving the simple graph
now i can see whats happening when 40% of my battery dies overnight as i sleep >:O
works good, any way of making it show the current time on the x-axis? or able to scroll left and rigth to see what happened earlier?
and whats the bottom graph for?
07accordEX said:
any way of making it show the current time on the x-axis? or able to scroll left and right to see what happened earlier?
Click to expand...
Click to collapse
both of these features are on the todo list (which ill put up when i get a moment)
and whats the bottom graph for?
Click to expand...
Click to collapse
read the initial post.
the top graph shows the past hour of activity (ish, its actually more like 57.5 mins), the bottom graph shows the past 8 hours (ish, more like 7.7hrs).
no data is collected when the device is asleep - and the graph doesnt get updated during these times, so you only see 'active' use in the graphs - i plan to implement some sort of visual cue system to signify times of sleep and also to keep the temporal coherency of the graph more contiguous (lol, e.g. a graphed minute will be 8 pixels wide no matter what).
i believe its impossible to collect data while the device is asleep as afaik when the processor goes to sleep the only part of it that functions is the bit that listens for interrupts (from i.e. the phone management cpu, etc) (and maybe a timer (for alarms etc?)) - if im wrong on these details please enlighten me.
fusi
Nice app I would love to see it becoming more mature, will probably end up with my standard equipment, thanks 12
12aon said:
Nice app I would love to see it becoming more mature, will probably end up with my standard equipment, thanks 12
Click to expand...
Click to collapse
thanks, watch this space should have something new up by the weekend
This opens up a blank white page on my phone. Did I do something wrong?
behrouz said:
This opens up a blank white page on my phone. Did I do something wrong?
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Click to collapse
the graphs dont refresh as soon as you open the app - youll hve to wait for the first update (15 and 60seconds) before anything is rendered - this will be fixed soon.
ok, a bit later than advertised but here is an updated version - fixed most things, still working on scrolling through the history - will add more features in coming days (colour customisation, toggling graph display, scrolling through history, exporting graphs as images, user customisable update intervals, etc)
btw ive added in support for unattended mode - this keeps the cpu alive when the device is asleep - i dont recommend keeping this on unless you are trying to debug unexplained power drain in standby - unattended mode keeps my raph ticking along at -21mAh, when im pretty sure true idle for this handset is more like -4mAh. so yah, not recommended to leave it on
im pretty sure there arent bugs but if you find one please let me know!
enjoy
fusi
fusi said:
ok, a bit later than advertised but here is an updated version - fixed most things, still working on scrolling through the history - will add more features in coming days (colour customisation, toggling graph display, scrolling through history, exporting graphs as images, user customisable update intervals, etc)
btw ive added in support for unattended mode - this keeps the cpu alive when the device is asleep - i dont recommend keeping this on unless you are trying to debug unexplained power drain in standby - unattended mode keeps my raph ticking along at -21mAh, when im pretty sure true idle for this handset is more like -4mAh. so yah, not recommended to leave it on
im pretty sure there arent bugs but if you find one please let me know!
enjoy
fusi
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I'm curious to know what you think the power consumption caused by this program is. Like you, I get about 21mA drain with the phone screen off - but I'm getting that with your old version. I use S2U2 with the "but only blank screen" option and turned off standby in Windows power management so I think that's effectively putting the phone in unattended mode. Normally (without your program running) I see pretty modest battery drain with the phone in unattended mode. Just off the top of my head I'd say that 5-15% battery drain per hour would be about what I'm used to with zero usage - phone just sitting in my pocket or on a desk in "unattended mode" but just now while running your older EXE my phone went from 65% to about 40% in under an hour while "unattended" (locked, screen off). Looking at the graph for that time period I see a consistent 21mA drain. If 21mAh=25% capacity, I'm in trouble. I know my battery isn't that far out of whack because I get what I'd consider (based on reading other's experiences) pretty normal life out of it. Maybe the drain characteristics for that "portion" of the battery are a little different - I'm not sure whether the capacity is judged solely on capacity minus drain or it figures voltage levels in as well...?
To be clear, I'm basing my sense of normal battery consumption on nothing more than "took it off the charger in the morning, didn't use it all day at work and have ~50% when I get home 9 or ten hours later" so it's anecdotal at best.
I'll keep playing - I love this tool. Maybe I'll be a little more scientific about my testing and see if I'm imagining things.
Hi thanks for posting
if your just turning the screen off, i dont think thats unattended mode, unattended mode actually powers down non essential parts of the device.
if unattended mode is off in the program and your phone goes into standby, it wont consume any battery as when the phone goes into standby everything is shutdown and the cpu pretty much stops functioning (apart from a very small part) - but this also means the historical data and graphs dont get updated . if unattended mode is on and your phone hits that standby timeout, it wont go into standby but unattended mode instead where it just turns off a lot of the non-essential stuff, like voltage to the sd card, the screen, etc - but it keeps the cpu running and the operating system pumping its messages.
i think a chunk of that 21mAh is going to be the operating system - but not all of it - currently the program registers 2 timers with the os, one has a 15second timeout and the other has a 60 second timeout. timers do drain battery, as the cpu keeps having to go 'is it time yet? is it time yet?' ad infinitum.
btw, when i said 'true idle' in my prev post i meant that that is the current used in true standby.
one way to calculate how much current its drawing is to leave your phone running it for 24hours (airplane mode on etc) and see how much its depleted over that time, then do it again without it running. using that information you can figure out how much current its using - i havent done this yet, i cant put the thing down for 5 minutes let alone 24 hours
im currently working on a system that doesnt use timers, it might work, might not if it does i hope to see that 21mAh reduce, but i dont imagine itll go down by that much. there are however loads of optimisations that can be done, and im investigating them atm.
im no battery scientist but as far as battery capacity, i think li-ion batteries judge their capacity by their voltage, from something like 3v up to 4.2v (0% -> 100% [wiki link below]) - i could be wrong on that though.
http://en.wikipedia.org/wiki/Lithium_ion_battery <-- this is a good informative read.
i dont think the battery is very capacious tbh - any amount of drain and it seems to go down very fast - i think the saving grace of the device is that is consumes minimal power when in standby - on days where im constantly using it heavily, im practically tethered to a power outlet as the battery just drains far too fast - i think the manufacters banked on the assumption that users would mostly have the phone in standby mode for most of the day. i usually use it for music while im at work and have putty sessions open etc, so its always on - i barely get 8 hours use without a charge .
ive noticed with my battery that even though the drain is constant (i.e. 21mAh or 63mAh) the charge level of the battery does not decrease linearly - e.g. ive noticed my phone suddenly start going down and lose 10% in 5 minutes before, and then the charge level would level out and stay at the same capacity for like 10 minutes before starting to go down again - this to me seems a little funny, as if the circuitry reporting the capacity isnt quite accurate - i think there a many factors, including battery temperature, the drain on the battery in mAh (i think a spike of higher drain may cause the battery do the nose-dive-then-level-out thing) - but i also think that the battery just doesnt deplete linearly, it seems to always have lumps and bumps in the graph, no matter how smooth the drain is.
glad you like the app ill be posting an update to it in a week or so.
peace
fusi
I'm not sure what exactly S2U2's "but only blank screen" does, but it leaves me with a 21 mA draw, so it can't be much different from unattended mode. I haven't tried to monitor it in that mode with (for example) an active Wifi connection or a program accessing the SD card to see if that changes things, but as it is it seems to be running the same things your set is.
The only reason I think the capacity calculation must not run off of only the voltage is that it has a definite "learning" capability. I think it must be doing some more complex things behind the scenes in terms of monitoring consumption and recalibrating periodically based on charge and discharge rates. I know I've seen it sit at 99% charging for a (very) disproportionately long time. The only good explanation for that is that it wasn't perfectly calibrated and the battery is still accepting charge at a higher rate than an almost full battery would. I've seen the same behavior in a lot of charge monitoring systems as they "learn" the characteristics of a battery. I guess it could be basing that purely on voltage, but I doubt it. While connected to a charge, the system will report a substantially higher voltage than it will as soon as the charging voltage is disconnected.
I don't know, I'm just kind of thinking aloud here. It would be great if there were a way to poll the power consumption without affecting the power consumption - sort of a Heisenberg's uncertainty problem... I'd really like to know what the power consumption is in unattended mode as well as true standby. Even if you do the 24 hour test you have to assume a lot of things about the battery's initial condition and the accuracy of the meter to arrive at a consumption number (and, like you, I'll never have a day I don't want to putter around with this phone). I suppose if you were really into it you could stick an ammeter between the battery and phone and control for the added loss
It's definitely true that the discharge isn't linear, even given a constant discharge rate. This has to be an artifact of including battery voltage in the capacity calculation. If it was using purely capacity minus usage the relationship would have to be linear.
Anyways, keep up the good work. I love stuff like this, just from an academic standpoint. Practically speaking I'm pretty much tethered to my chargers, too...
hyachts said:
I'm not sure what exactly S2U2's "but only blank screen" does, but it leaves me with a 21 mA draw, so it can't be much different from unattended mode.
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Click to collapse
That's exactly the case, this setting causes your device to run in unattended mode (backlight off, audio off, wi-fi off, ...)
hyachts said:
I think it must be doing some more complex things behind the scenes in terms of monitoring consumption and recalibrating periodically based on charge and discharge rates. I guess it could be basing that purely on voltage, but I doubt it. While connected to a charge, the system will report a substantially higher voltage than it will as soon as the charging voltage is disconnected.
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Click to collapse
Microsoft's reference battery driver for PXA270 CPU is calculating battery percentage based on voltage exclusively. HTC's custom driver for Qualcomm cores seems to have some kind of more advanced logic behind it, but it doesn't work well/smooth.
hyachts said:
I don't know, I'm just kind of thinking aloud here. It would be great if there were a way to poll the power consumption without affecting the power consumption - sort of a Heisenberg's uncertainty problem... I'd really like to know what the power consumption is in unattended mode as well as true standby.
Click to expand...
Click to collapse
Not without external tools, it should be possible to hook up an external multimeter to the battery directly to measure the voltage accurately in standby. Using the battery driver information you can only evaluate it and the evaluation is likely to be pretty rough.
Attached are some charts from my Touch HD...
The battery level graph seems to follow consumption graph very closely.
You can barely notice the resemblance with the voltage graph though.
These charts depict my device's utilization over 2 days, assuming 0 mah consumption when in standby. This assumption is apparently not accurate, as the battery capacity is 1350 mah and only about 1000 mah were utilized. Out of these 48 hours the device was in standby for about 40 hours, so my estimated standby utilization is -350mah/40h => -8.75mah. This doesn't sound reasonable, as according to manufacturers specs, the device is capable of 450h of standby, with 1350mah battery standby consumption should be -1350mah/450h => -3.375mah. I would agree with fusi, that taking manufacturer's estimation errors it should be safe to assume standby consupmption is around -4mah.
40*-4mah=160mah, so I have about -190mah remaining unaccounted for. I blame measurement accuracy for this... IMO, with this degree of inaccuracy, standby consumption can not be accurately estimated and has to be assumed based on manufacturers specs only.
I'm running more tests to reconfirm these observations, but I doubt the results will be extremely different.
For your reference, I get -69mah on Touch HD when idling with minimal backlight level and -27mah in suspended mode.
Before anyone accuse me of it, I did, in fact, look through the other battery threads on this forum (and other forums, for that matter), and I've already applied numerous tricks. I managed to get my phone to last roughly 9 hours from my typical usage, which now makes it comparable to other phones I've used in the past.
However, in about a day or two, I'm going to be getting a bluetooth headset...which basically means that I'm going to need to keep the Captivate's bluetooth on 24/7 (or, at least, most of the day). I really don't know how much battery this is going to cost me on the Captivate, so I'm trying my best to make things better now to make things smooth in the future. However, I appear to be at the end of my rope.
I have pretty much gimped the Captivate as much as one could reasonably take (more, I'd dare argue). I cut all of my volume down to half of what it was and I removed most of the quick icons. I also set a completely black wallpaper, I turned off all animation, and I turned the brightness down to its lowest setting.
I honestly don't know how to make it any worse. The SAMOLED screen is basically a meaningless PR term to me now and I'm actually missing phone calls from sheer lacking of hearing my phone ring...despite it being right in my pocket.
Going even further, I also attempted to switch to ADW.Launcher based upon recommendations by others that it increases battery life (I found that it had little to no effect). I also attempted to severely underclock my CPU (down to 200Mhz) based, again, upon other claims that it increases their battery life all the way to as high as 30+ hours on a single full charge.
Somehow, underclocking my CPU actually made the battery die out faster.
Furthermore, I attempted to use programs (SMODA, 2G/3G) which claim they allow me to switch to EDGE because, for some God-forsaken reason, Android doesn’t seem to have any toggle for doing it. Unfortunately, none of them seem to work; rather than switching to 2G, they all just completely disabled data, which, unfortunately, is completely unacceptable to me. So at this point, I only seem to have a few more extreme (from my perspective) options. Once I actually get the bluetooth, I plan to turn off most of the auto-updating apps (email, weather, twitter, etc), and just update them myself periodically. Furthermore, I plan to turn off the GPS location feature once I get my GPS unit.
Beyond the above, though, as I said, I'm at the end of my rope. Once I employ the other tricks, I figure I might be able to stretch battery life to 9.5-10 hours, but I would like to go even further. If anyone could offer me some help, I would highly appreciate it.
if your gonna have a bluetooth headset on disable your ringtone completly that would be meaning less. if your near wi-fi a lot have it connect only though that.
also you can clock the cpu down to 100Mhz along with the GPU.
AND to force 2G/edge read my howto in general
oh the ext2 lagfix can also save you some battery life
xatrekak said:
if your gonna have a bluetooth headset on disable your ringtone completly that would be meaning less. if your near wi-fi a lot have it connect only though that.
also you can clock the cpu down to 100Mhz along with the GPU.
AND to force 2G/edge read my howto in general
oh the ext2 lagfix can also save you some battery life
Click to expand...
Click to collapse
I'm already doing the first sans disabling ringtone. I'm not so sure doing such a thing would be acceptable to me.
As for the underlocking suggestion, as I said, I underclocked the CPU all the way down to 200Mhz and the battery actually drained even faster. I doubt underclocking even further is going to help. Furthermore, I actually did try 100Mhz originally, but the performance was so horrendous that it was unbearable.
As for the lag fix, I already have it. Lastly, I knew about that 4636 technique to switch to 2G already, but, unfortunately, it doesn't appear to work for me. The setting doesn't save and 3G still remains.
EDIT: I actually found a way to make the above work. Simply dial *#*#197328640#*#*, then go Debug Screen > Phone Control > UE State Control > Change RAT to GSM. This will actually force your phone to use GSM only. This seems like the answer to all of my battery problems....except it doesn't work. Once you make the change, the INFO menu reports that it has been changed to 'GSM Only', but data appears to have been disabled. Restarting your phone makes data works again, but the INFO menu reported that data has been reset back to 'GSM/CDMA auto'. Yay.
If you haven't already, turn off GPS when you aren't using it. Use the Power Control widget to help. Make sure all of the things in the power control widget are off unless you are using it. And use advanced task killer if you haven't already.
i say screw underclocking let run at whatever i dont think it makes a difference.
forget advanced task killer, i like auto killer.
leave gps off unless needed, and backround data
switch to 2g when you can.
no live walls of course use dark or black, no updating widgets
i dumped stuff like juice defender, cause with backround data off i dont think it does anything.
flight mode it at night (when sleeping) if not charging
ive been running jh3 (now jh7) with sre. get to work (i run 2g at work)at 9am listen to pandora all day through bluetooth (which is on for 6-8hrs) and wifi (6-8hrs) good amount off browsing bout 30 min of voice calls, some texts email checking, more browsing, some games. on average lately after being unplugged for 13-17 hrs at the end of the day with 20-30% life left,using bout 3hrs of display, 30 min voice calls, bluetooth doesnt use crap bout 3%, media server usually 15%, cell satndby i wanna say 10%, im pretty happy i guess, even though im always lookin for better results, tryin the new sre with undervolting, heard some good things.
still when that seidio 3200 mah battery comes out im gettin it, dont care how fat it makes the phone, things to dang thin as it is, and without some sort of cover its like a wet bar of soap!!
What is your typical daily usage? I have fairly light usage (few games here and there a little music and a good amount of web surfing, app browsing and texting with a few phone calls using speaker phone) and I'm at 28 hours of use with 55% battery.
I have just the typical power saving tricks(gps off, bluetooth off, screen at minimum or 30% and my data doesn't sync automatically), no under clocking or anything. I should point out I'm running a euro galaxy rom and am not ever on a wifi connection.
NotAppropriate said:
What is your typical daily usage? I have fairly light usage (few games here and there a little music and a good amount of web surfing, app browsing and texting with a few phone calls using speaker phone) and I'm at 28 hours of use with 55% battery.
I have just the typical power saving tricks(gps off, bluetooth off, screen at minimum or 30% and my data doesn't sync automatically), no under clocking or anything. I should point out I'm running a euro galaxy rom and am not ever on a wifi connection.
Click to expand...
Click to collapse
Wow you are lucky. Yesterday I got 2 phone calls for a total of 3 minutes. I sent 7 text messages. I surfed the web maybe for 15 minutes. No games. Nothing else major. GPS off. Bluetooth off. Wifi on. Screen at 22%. Only background data I have is email which checks once every hour and a weather widget that refreshes every 6 hours. I got barely 12 hours in before my battery died.
fishgator said:
If you haven't already, turn off GPS when you aren't using it. Use the Power Control widget to help. Make sure all of the things in the power control widget are off unless you are using it. And use advanced task killer if you haven't already.
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Click to collapse
Yes, I'm keeping GPS off, and I'm using ATK already.
NotAppropriate said:
What is your typical daily usage? I have fairly light usage (few games here and there a little music and a good amount of web surfing, app browsing and texting with a few phone calls using speaker phone) and I'm at 28 hours of use with 55% battery.
I have just the typical power saving tricks(gps off, bluetooth off, screen at minimum or 30% and my data doesn't sync automatically), no under clocking or anything. I should point out I'm running a euro galaxy rom and am not ever on a wifi connection.
Click to expand...
Click to collapse
Typical usage for me runs along this line: A lot of web browsing, perhaps 30-45 minutes of music, and plenty of IM. I also use Aldiko to read now and then. Calls do factor into this, but typically only two or three 10-15 minute phone calls.
Truthfully, I simply don't see how it is possible for you to use the phone for 28 hours straight and still have 55% battery. I could lose 30% battery just by leaving my Captivate on stand-by for 30 hours.
I certainly understand the interest in having the best battery life possible.
Are you in a work environment where you cannot plug it to a computer for part of the day?
Fortunately, I am. And I always have it plugged in in the car.
I don't want to have a powerful phone with all the features turned off in order to keep it going.
I dont see how you can get 28hrs @ 55% either, with the kind of usage he was claiming, i wouldnt exactly call that light usage
Sent from my SAMSUNG-SGH-I897 using XDA App
28hrs @ 55% What firmware you runnin
Sent from my SAMSUNG-SGH-I897 using XDA App
ewingr said:
I certainly understand the interest in having the best battery life possible.
Are you in a work environment where you cannot plug it to a computer for part of the day?
Fortunately, I am. And I always have it plugged in in the car.
I don't what to have a powerful phone with all the features turned off in order to keep it going.
Click to expand...
Click to collapse
Well, I do have a work environment where I can keep my Captivate plugged in, but only half of the time. Other times, I need to move. Aside from that, it kind of annoys me to use a phone attached to a wall socket. I prefer to keep my smartphones plugged in only long enough for them to fully charge (or at least charge to 80+%), then unplug them for usage. This is kind of tough for the Captivate considering it takes 3-4 hours to fully charge.
I also fully agree with you on the last point, which is what makes all of this so frustrating.
*Sigh* It's really too bad the Captivate is my first Android phone; it's been kind of a negative experience for me so far. Ironically enough, the one issue that hasn't been a problem for me is the one issue most seem to be having -- GPS performance.
roadrash7 said:
I dont see how you can get 28hrs @ 55% either, with the kind of usage he was claiming, i wouldnt exactly call that light usage
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
I am in class for most of the day so the phone is idle most of the time but i only play about 10 minutes of music with about an hour or 2 combined web surfing and games but my phone is still chugging at 39 percent battery life at 38 hours of usage. I guess that qualifies as light usage then.
edit: jm6 with unhelpful kernel and sre
also, you have let the battery die out completely and recharge completely with the phone powered off correct?
NotAppropriate said:
I am in class for most of the day so the phone is idle most of the time but i only play about 10 minutes of music with about an hour or 2 combined web surfing and games but my phone is still chugging at 39 percent battery life at 38 hours of usage. I guess that qualifies as light usage then.
edit: jm6 with unhelpful kernel and sre
also, you have let the battery die out completely and recharge completely with the phone powered off correct?
Click to expand...
Click to collapse
I'm honestly shocked at your usage. Am I reading right that in the 38 hours since you last charged it, you only used it for 10 minutes of music and a combined 1-2 hours of web surfing/games? I wouldn't call that light usage. I would call that hardly any usage.
Under such conditions, I can see why your battery life lasts so long.
I don't see why you can't get a days worth of usage out of your phone. Cell phone calls use the most battery - that is why the phone is rated at about 5 hours of talk time. This would be in the best signal area. If you are in a lower signal environment (especially in a heavy building all day) you will see faster battery drain.
I am not sure why you are bothering with BT if you are only talking on 2 or 3 calls - but if you take 3 15 minute calls that is at least 15% of your battery - the only way to change this is force the phone to Edge.
I would not lower ringtone volume - that is not a big battery saver in the grand scheme of things and you are missing calls - not a good trade off. If you are doing a lot of web surfing, go WiFi instead and you will see big battery imrovements. 3G voice and data suck battery - it doesn't matter if you have android or iPhone.
If you put your phone in Airplane mode you can go for 5 days between charges with minimum use.
The radio does kill the battery, I don't think the battery usage screen really depicts this. Since I've gotten my captivate my old BB Bold (at the time would only last 3 hours due to its degraded battery) lasts days on end with its radio disabled while sitting in my desk. I'd love to see native 3G toggle or at least a captivate catered app, I'd even pay for the latter
Sent from my SAMSUNG-SGH-I897 using XDA App
alphadog00 said:
I don't see why you can't get a days worth of usage out of your phone. Cell phone calls use the most battery - that is why the phone is rated at about 5 hours of talk time. This would be in the best signal area. If you are in a lower signal environment (especially in a heavy building all day) you will see faster battery drain.
Click to expand...
Click to collapse
Well, that rating is probably the battery life if your decide to talk on your phone for five hours straight. I really, really doubt it takes into consideration the in-between times (games, apps, and, of course, web surfing). Phone calls undoubtedly takes the most amount of battery, but Internet usage is probably second place and, as said, I use that fairly often.
Lastly, I'm not planning to use my bluetooth exclusively for phone calls. I'm going to use it for calls, listen to music on the Captivate, chat on my PC, and so on. It's multi-usage.
Next, you're missing a lot of the things I said. As I said, I already tried numerous methods to force the phone into 2G; not one of them works (they either don't work at all or actually completely disable my data). I'm already using wifi as opposed to 3G as much as possible.
Lastly, I'm sorry, but using airplane mode to save battery is not acceptable. If I'm even willing to consider this, then I might as well just turn off the Captivate to save battery.
I just read something about an external sd card being another battery drain.
Took mine out and we will see. I was already getting through the day with about 20%left.
8525Smart said:
Well, that rating is probably the battery life if your decide to talk on your phone for five hours straight. I really, really doubt it takes into consideration the in-between times (games, apps, and, of course, web surfing). Phone calls undoubtedly takes the most amount of battery, but Internet usage is probably second place and, as said, I use that fairly often.
Lastly, I'm not planning to use my bluetooth exclusively for phone calls. I'm going to use it for calls, listen to music on the Captivate, chat on my PC, and so on. It's multi-usage.
Next, you're missing a lot of the things I said. As I said, I already tried numerous methods to force the phone into 2G; not one of them works (they either don't work at all or actually completely disable my data). I'm already using wifi as opposed to 3G as much as possible.
Lastly, I'm sorry, but using airplane mode to save battery is not acceptable. If I'm even willing to consider this, then I might as well just turn off the Captivate to save battery.
Click to expand...
Click to collapse
I didn't meant to suggest that airplane mode was an alternative, just to point out that the cell radio for Voice and Data is your biggest drain.
If you are going to use the phone for almost an hour of talk time, heavy web surfing and BT connections for tethering then your battery life will be limited. If you are using BT to chat on your pc - then maybe tethering with USB would be better - you could charge at the same time.
Your other option is to get a spare battery.
And I did read what you had to say, I just didn't realize how much you were expecting your phone to do. The only numbers your provider were around talk time.
I use my phone a lot and I charge it every 24 hours - I am more then satisfied - but I know that if a spend an hour or more talking on it and bunch of web surfing that I will have to think about charging it as my usage increases.
There is a way to force the phone into 2G. It isn't very user friendly. I have tested this and it works great.
Enter the Phone app.
Dial *#*#197328640#*#*
Select [1] DEBUG SCREEN
Select [8] PHONE CONTROL
Select [4] UE STATE CONTROL
If you want 2G, select:
[3] CHANGE RAT TO GSM
If you want 3G, select:
[2] CHANGE RAT TO WCDMA
Hey guys,
I would like to make your situation easier, so you don't have to read like 1000s of forum threads to get information I'm giving you here. These are the issues I faced with my incredible s, and the so called solutions.
The device:
Stock EU htc incredible s/ htc droid incredible 2 on Gingerbread. NO software mods at all.
According to my knowledge the same applies to the htc desire s and the htc desire hd as well. Most of these problems come forward after updating to gingerbread. If you are still on froyo, I wouldn' recommend updating.
1st issue. High standby drain.
According to Currentwidget and battery monitor my incredible s doesn't have lower battery consumption in standby than 38Mah.
Solution:
Drain readings are corrupted, there is a bug involved.
In reality You only have around 5-6Mah drain in standby.
Proof.
Left phone in standby for 2 days without messing with it, ended up with 40% left.
So if you have a minimum of 40Mah drain for two days. (48hours x40Ma=1920Ma) The battery's capacity is no more than 1500Ma, so it's obvious that standby drain readings are corrupted.
IGNORE drain readings!
2nd issue: You take it off the charger and it's 95%
Some say that phone charges till 100% than shuts charging down till battery reaches 90%, than charging starts again.
Some say our Lithium battery cannot get charged till 100% which is normal. This is the reason our device doesn't show % in notification area.
Solution: Ignore battery monitor, use inbuilt battery charge indicator, and be happy.
If you want to test battery life, start test at 90% and your test won't be corrupted.
3rd issue: Dialer using too much battery.
This might to be a bug as well. Still to be confirmed. The dialer doesn't use that much of power it only gets stuck in built in battery use indicator giving false drain data.
Some say it doesn't stop using proximity sensor after being in a call, hence the big drain. Incredible s's proximity sensor is visible during call, check it in the dark, it blinks. After call it stays inactive. So the dialer using it 24/7 seems to be a false statement.
4th issue: Declining calls in pocket.
When taking or declining a call, you swipe vertically on the screen. If you have your phone in your pocket with the screen facing your body, you can easily take or decline some calls when pulling out. This is more likely if you have a pocket made of thin material.
Solution: Put your phone in your pocket with the battery cover facing your leg. Don't worry about bumping into like a table corner and smashing your screen. Our gorilla glass is almost indestructible. Using a pouch or cover does the trick as well.
Not sure why htc is so obsessed with the vertical answer procedure. With horizontal swipe we wouldn't have this problem and users have been complaining about this since the desire came out.
5th Issue: Wifi disconnects when signal low, but still would be fine under froyo.
Connection gets disconnected when signal is 86db or lower.
This is a gingerbread related problem, htc cannot do anything about it.
No solution just yet.
For those who complain about battery life, I am on gingerbread with loads of apps installed and with very heavy use 3hours of display, wifi, skype,internet browsing I can use the phone for 12 hours. With moderate use min 2 days.
Battery saving tipps:
-Don't let google and htc sync. It uses lot of data and battery resources.(I don't like my sensitive data to be copied on their servers anyway.) Sync with your pc regularly.
- If u use data for e-mail and weather sync, use Gsm only mode, you don't need that much of speed for those, turn WCDMA on if u need it for skype, etc. Hspda and 3g are big battery killers.
-Everything on manual sync. There is a sync all widget in sense to use. U can hit it anytime you want to.
-No live wallpaper
-Hotspot uses excessive amount of battery. Use it on charger only.
-Screen light to be turned down. Use Screen filter app nighttime.
-Turn wifi and mobile data off when not in use, so phone can sleep properly. (wifi timeout app)
-Turn off wireless network positioning.
-Keep bluetooth off when not in use.
-Select short screen timeout like 15s.
-Screen on time is the main culprit in appalling battery life. Use your watch to check time rather than turning the screen on.
-If u struggle to find 3g or Hspda for data or network itself, change provider, because no matter what phone u have, u will have this problem. Try to find spots in your flat with better signal for data. Searching for network uses a lot of battery.
-Try to charge your phone from 0% overnight with the phone off for a couple of times (8-12hrs)
-When gps is on it doesn't mean that it uses battery. If you see the sattelite icon blinking or just on, that's when it uses battery, a significant amount of battery.
-Consider buying the official extended battery available in US (droid incredible 2 2100Mah), coming to EU soon. I wouldn't recommend buying the unofficial ones just now.
Obviously if you apply some of these battery life will be better. If you apply all of them, battery life will be exceptional.
Hope I helped.
Have fun guys!
Hi!
Thanks you for this! I buy my incredible s a couple of days ago, upgraded instantley. I met most of these problems and now I am happyer with my phone knowing these.
Could you give link to the battery you wrote about???
i appreciate what you're trying to do - but if you are going to follow all those steps you might as well have bought a nokia 3210
"Use your watch to check time rather than turning the screen on"
i mean.... really??
As I said, you don't have to follow all the steps.
You might face conditions when you need every drop of your juice, so it's good to know how to get the most out of your battery, isn't it?
Sent from my HTC Incredible S using XDA App
IncredibleSSS said:
Hi!
Thanks you for this! I buy my incredible s a couple of days ago, upgraded instantley. I met most of these problems and now I am happyer with my phone knowing these.
Could you give link to the battery you wrote about???
Click to expand...
Click to collapse
http://www.bargaincell.com/-p-509714.html
It's for the droid incredible 2, but thats equivalent to Incredible s.
Sorry if this seems sarcastic, but if you're gonna buy a smartphone and turn everything that makes it a smartphone off, then save yourself a few hundred quid and buy a Nokia 1100
I use mine to sync everything and anything I want, and don't worry about it, as long as it lasts the day, which it does, I'm happy.
Clivectmob said:
Sorry if this seems sarcastic, but if you're gonna buy a smartphone and turn everything that makes it a smartphone off, then save yourself a few hundred quid and buy a Nokia 1100
I use mine to sync everything and anything I want, and don't worry about it, as long as it lasts the day, which it does, I'm happy.
Click to expand...
Click to collapse
you misinterpreted what the op said. He is just stating what you could do if you found yourself in a situation where you had to maximize battery usage. Obviously most of us are around an outlet or usb plug most of the day so that we can charge the phone often.
Thanks for the info OP. I just wish that current widget would show us the right info. Or some other app :/
Thanks for the info OP. My buddy has had endless problems with his Incredible. I'll Chrome to Phone this thread and send it to him!
sdxda said:
Thanks for the info OP. I just wish that current widget would show us the right info. Or some other app :/
Click to expand...
Click to collapse
Its not the apps fault, the phone just reports wrong. So any other app should also fail.
@superman, perhaps a faulty app is causing the problems
Wifi issue should be resolved with the ota update.
However there is a network at my workplace which I couldn't connect to. I guess it is some kind of wifi repeater, it doesn't look like an actual wifi router. There is no cable connecting to it. Apparently I can connect but I get 0 signal next to it. Others can connect with full signal. Any idea?
RicarduZonta said:
Hey guys,
Our gorilla glass is almost indestructible.
Click to expand...
Click to collapse
the glass on my phone broke on the third day falling face down from a a height of about 1 feet. so is it a gorilla glass or normal?
Not trying to be rude or anything but thought some other members would find what I have to say useful (I hope!)
Not everything you say is true.
RicarduZonta said:
Put your phone in your pocket with the battery cover facing your leg. Don't worry about bumping into like a table corner and smashing your screen. Our gorilla glass is almost indestructible. Using a pouch or cover does the trick as well.
Click to expand...
Click to collapse
It is FAR from "almost" indestructible. Some people also say it's impossible to scratch it, yet mines been scratched (this AND nexus one) It's nice glass but indestructible? I think not, not even "almost"
Oh the guy above me also had his cracked!
RicarduZonta said:
Battery saving tipps:
-Don't let google and htc sync. It uses lot of data and battery resources.(I don't like my sensitive data to be copied on their servers anyway.) Sync with your pc regularly.
- If u use data for e-mail and weather sync, use Gsm only mode, you don't need that much of speed for those, turn WCDMA on if u need it for skype, etc. Hspda and 3g are big battery killers.
-No live wallpaper
Click to expand...
Click to collapse
Live wall papers do eat your battery, but it's almost close to nothing. I've read that whatever uses more than 2% of your battery will be displayed in the "battery usage" I've used live wallpapers and it's never even shown that. (I think it also depends on what kind of wallpapers you use though.. let's say you had one that interacted with you) perhaps that might drain more battery.. but who turns on their phone to play with their wallpaper lmao
I've tested and disabling google sync barely makes a diff. I also don't think it uses a lot of data. I don't completely disagree with you though, manual sync is probably a better idea. On the other hand, I don't really think Hspda/3g are big battery killers, I notice that if you use the browser, the battery drops quick. Let's say you used "gsm" / "2G" and the webpage takes longer to load whereas 3G would have it loaded within seconds.. Which would waste more battery? I'm not 100% sure but I'd say just keep 3G and turn on 2G if you're not doing anything else with your phone. To my surprise, 2G is horribly slow.
RicarduZonta said:
-Screen light to be turned down. Use Screen filter app nighttime.
Click to expand...
Click to collapse
Completely false. This is only a cover on top of your screen. It doesn't change the power being outputted to the screen. If you look at what RogerProdacter is making, you'll see that he's trying to modify the phones brightness output.
RicarduZonta said:
-Select short screen timeout like 15s.
Click to expand...
Click to collapse
Disagree again. It's really up to user though, that's insane. I'd be pissed if my phone kept shutting off in 15s! What you can actually do is turn off the phone yourself or get something like Lock screen widget which instantly turns off your screen. Two reasons it's better - You don't have to worry about the timeout - you shut it off sooner than 15s.
RicarduZonta said:
-Screen on time is the main culprit in appalling battery life. Use your watch to check time rather than turning the screen on.
Click to expand...
Click to collapse
that's crazy.. You're saying that for us to check battery life/uptime we should use our watches? That's insane! That's a lot of effort to keep track JUST for your battery. Is it worth it? (I wouldn't think so.. but it's up to whoever uses it lol..)
RicarduZonta said:
-If u struggle to find 3g or Hspda for data or network itself, change provider, because no matter what phone u have, u will have this problem.
Click to expand...
Click to collapse
I don't know what kind of world you live in, sounds way too good to be true. Just instantly change providers eh? Where I live.. that's not really easy to do. I'm sure most people getting cell phones would have enough common sense to pick something that works in their area anyway.
General tips I can think of are:
Use black theme on display settings,
greenify doze setting using adb.
Any suggestions just post below.
beache said:
General tips I can think of are:
Use black theme on display settings,
greenify doze setting using adb.
Any suggestions just post below.
Click to expand...
Click to collapse
I take it you mean non-root?
- Brightness!!!!
- Apps running in the background and preventing phone from sleeping permission; Downlaod Shizuku Manager and App Ops from the Play Store, run the script via adb and limit the apps you don't want to have those permissions. Instant messaging: Don't limit run in background
- Did I mention brightness!?!?
- I don't do this one, but don't charge your phone past 80%. This is more of a long term battery saver, as it will cause less damage to the battery. Also don't keep your phone plugged in overnight. (I don't leave mine in)
- Disable radios while not in use. I never use NFC or nearby device scanning, I turn those off. Wi-Fi and Bluetooth are never on while not in use. You'll get in the habit of turning them off it you start.
Craz Basics said:
I take it you mean non-root?
- Brightness!!!!
- Apps running in the background and preventing phone from sleeping permission; Downlaod Shizuku Manager and App Ops from the Play Store, run the script via adb and limit the apps you don't want to have those permissions. Instant messaging: Don't limit run in background
- Did I mention brightness!?!?
- I don't do this one, but don't charge your phone past 80%. This is more of a long term battery saver, as it will cause less damage to the battery. Also don't keep your phone plugged in overnight. (I don't leave mine in)
- Disable radios while not in use. I never use NFC or nearby device scanning, I turn those off. Wi-Fi and Bluetooth are never on while not in use. You'll get in the habit of turning them off it you start.
Click to expand...
Click to collapse
Leaving the phone plugged in all night wont do any damage to the battery. Once charged the current to the battery is cut off except for when it needs trickle charging throughout the night, the power used by the phone will then come from the wall adapter. But if you dont want to charge your phone all of the way, then thats when you dont leave it plugged in all night unless you have a circuit to disconnect power at a certain battery percentage. Oh man that gives me an idea.
I should make a small circuit thats linked via bluetooth to an app, so pretty much a power adapter that you plug your phone into, but once you reach a certain percentage, the phone tells the adapter to cut power and only turn on to get it back up to that certain percentage.
Okay that was really side tracked.
Back to the post.
Like Craz said, brightness and radios.
If you are rooted, download KA or EXKM and underclock your cpu, thatll help out a bit, also if rooted you could try a custom kernel
Root:
Force Doze
Naptime
Greenify
Custom kernel
CPU underclock
Use tasker to limit cpu speed when screen off or in certain apps
Non Root:
Dark themes
Lower brightness
Make sure apps arent running in the background that use a lot of power
Disable location services
Disable radios unless in use (tasker helps especially with root)
If you plan to have your phone for over a year or two, then the charge limits, but capacity wont change much within the first few hundred cycles
Use Wifi as much as possible (cell uses more power)
Disable screen off gestures
Make sure doze and advanced optimizations are enabled
Tips for better battery life.
And a lot of common sense.
tuncan said:
Tips for better battery life.
And a lot of common sense.
Click to expand...
Click to collapse
very helpful thanks
chewingum16 said:
very helpful thanks
Click to expand...
Click to collapse
Tnx. :good:
Zombie said:
Leaving the phone plugged in all night wont do any damage to the battery. Once charged the current to the battery is cut off except for when it needs trickle charging throughout the night, the power used by the phone will then come from the wall adapter. But if you dont want to charge your phone all of the way, then thats when you dont leave it plugged in all night unless you have a circuit to disconnect power at a certain battery percentage. Oh man that gives me an idea.
I should make a small circuit thats linked via bluetooth to an app, so pretty much a power adapter that you plug your phone into, but once you reach a certain percentage, the phone tells the adapter to cut power and only turn on to get it back up to that certain percentage.
Okay that was really side tracked.
Back to the post.
Like Craz said, brightness and radios.
If you are rooted, download KA or EXKM and underclock your cpu, thatll help out a bit, also if rooted you could try a custom kernel
Root:
Force Doze
Naptime
Greenify
Custom kernel
CPU underclock
Use tasker to limit cpu speed when screen off or in certain apps
Non Root:
Dark themes
Lower brightness
Make sure apps arent running in the background that use a lot of power
Disable location services
Disable radios unless in use (tasker helps especially with root)
If you plan to have your phone for over a year or two, then the charge limits, but capacity wont change much within the first few hundred cycles
Use Wifi as much as possible (cell uses more power)
Disable screen off gestures
Make sure doze and advanced optimizations are enabled
Click to expand...
Click to collapse
yes it will on many cases, but I can't tell with the OP5. Is the circuit will cut-off the battery from the phone to avoid drain? If yes, in that case, it won't hurt significantly the battery.
In general , what can hurt li based batteries : time, heat and numbers of time of electrons changing direction.
Having the phone plugged in, every X time the % will drop, and the charging circuit will trigger the battery.
As I said, can't tell how op5 is working, and it probably be minimal anyway. But technically it will reduce the capacity : http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Heat : 20W charger, even if its a vooc, at one point the battery will get a high current load = heat, and chemical li-po arrangement changes.
Time : cant do nothing here, chemical arrangement will degrade, its a normal process for most battery, specially li based one.
But at the end, not much people would see any difference, since nowadays people changing their phone every 1-2 years, fck ridiculous...
Back to topic :
Pixel off apps , many of them on the play strore, can't tell which one is good or not.
Basically, it will turn off pixels on the screen.
https://play.google.com/store/apps/details?id=com.anrapps.pixelbatterysaver&hl=fr
i find if i turn off the wifi always scanning feature and also turn off keep wifi on during sleep saves battery. actually i keep all wifi off unless i'm currently using it. as already mentioned, location services off, since i keep phone on all the time i get data through that. i've experienced battery times up to 6 days if calls in&out are 10 or lower each day and each call no more than 3 min, i'm a firm believer in hello, just facts, goodbye. i know people that live life via a phone find that strange but they will die of brain cancer not me. my neighbor is on phone no less than 7 hours a day just bullsh*tting and he talks real funny, i think his brain is rotting already. check to see which apps run all the time and kill those you do not need. as mentioned, lower screen brightness. 90% of the time mine is a couple clicks from as low as it can be and it is fine. i'd do the dark thing but it f*cks with my eyes. keep all apps closed you are not presently using instead of loaded in background.
dkryder said:
i find if i turn off the wifi always scanning feature and also turn off keep wifi on during sleep saves battery. actually i keep all wifi off unless i'm currently using it. as already mentioned, location services off, since i keep phone on all the time i get data through that. i've experienced battery times up to 6 days if calls in&out are 10 or lower each day and each call no more than 3 min, i'm a firm believer in hello, just facts, goodbye. i know people that live life via a phone find that strange but they will die of brain cancer not me. my neighbor is on phone no less than 7 hours a day just bullsh*tting and he talks real funny, i think his brain is rotting already. check to see which apps run all the time and kill those you do not need. as mentioned, lower screen brightness. 90% of the time mine is a couple clicks from as low as it can be and it is fine. i'd do the dark thing but it f*cks with my eyes. keep all apps closed you are not presently using instead of loaded in background.
Click to expand...
Click to collapse
I can't really tell if you are joking about the brain cancer part or not. Some people might take you seriously
shangxor said:
I can't really tell if you are joking about the brain cancer part or not. Some people might take you seriously
Click to expand...
Click to collapse
oh, sorry about that.
https://www.jrselectrohealth.com/in...ween-1985-and-2015-in-the-u-k/?c=cf13ce20305c
dkryder said:
oh, sorry about that.
https://www.jrselectrohealth.com/in...ween-1985-and-2015-in-the-u-k/?c=cf13ce20305c
Click to expand...
Click to collapse
"While the new plots in themselves say nothing about any possible links between cell phones and brain tumors, they go a long way toward puncturing the argument offered by numerous public health officials and media outlets that such an association is highly unlikely because the overall incidence of brain tumors has remained relatively stable over the last number of years."
http://microwavenews.com/short-takes-archive/changing-mix-uk-bts
He had based part of his study on incorrect data also.
---------- Post added at 07:35 AM ---------- Previous post was at 07:30 AM ----------
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shangxor said:
"While the new plots in themselves say nothing about any possible links between cell phones and brain tumors, they go a long way toward puncturing the argument offered by numerous public health officials and media outlets that such an association is highly unlikely because the overall incidence of brain tumors has remained relatively stable over the last number of years."
http://microwavenews.com/short-takes-archive/changing-mix-uk-bts
He had based part of his study on incorrect data also.
Click to expand...
Click to collapse
yes, i offered the link as a punchline to your comment about joking. however i do have a question about your comment,
"He had based part of his study on incorrect data also"
why didn't you include the part of the study and the incorrect data? because, when statement like this is made it is left to the reader to determine the part of the study and the incorrect data which may lead to misunderstandings.