Related
i am one of those anal people who likes to keep his battery in good condition by always letting it empty completely before recharging and i have noticed alot that i run into a situation where i need the phone fully charged for some reasion or another but dont have the time to sit around with all the nic's turned on waiting for it to die. i have seen a battery discharge feature on some devices that will rapidly drain the battery to 0 so it doesent develope memory when you plug it back in i was wondering if anyone has made one of these for the raphael?? any links would be apreciated.
i have already rtfw'ed and searched everyone seems so obsesed with prolonging battery life not draining it so i have had no luck
You are actually doing more damage to the battery draining it all the way then if you'd just charge it when you can if you are indeed doing this every single time.
All HTC devices use a Li-ion (Lithium Ion) battery, which do not get a charge memory in the cells like rechargeable batteries of yesteryear.
Instead their life cycle is based on number of discharges and recharges and the batteries age. If you're needlessly discharging your battery and recharging it, you are dramatically shortening it's life.
You should read up...
http://en.wikipedia.org/wiki/Lithium_ion#Advantages
...they may be irreversibly damaged if discharged below a certain voltage.
Click to expand...
Click to collapse
Like many rechargeable batteries, lithium-ion batteries should be charged early and often.
Click to expand...
Click to collapse
Lithium-ion batteries should not be frequently fully discharged and recharged ("deep-cycled"), but this may be necessary after about every 30th recharge to recalibrate any electronic charge monitor (e.g. a battery meter). This allows the monitoring electronics to more accurately estimate battery charge.
Click to expand...
Click to collapse
It is clearly stated in the Fuze manual that it is SUGGESTED that you fully discharge your battery and fully recharge to get the most out of it.
thanks for the advice i will look into it but i would still apreciate someone answering my origional question as to wether or not anyone has actually made one of these apps
PwnCakes193 said:
It is clearly stated in the Fuze manual that it is SUGGESTED that you fully discharge your battery and fully recharge to get the most out of it.
Click to expand...
Click to collapse
This is almost certainly suggested so the battery meter maintains a good calibration. As GldRush points out, you are not doing any damage to the battery or shortening its life by short-cycling it. You could also harm it by deep-cycling it. Allowing the phone to go to 0% is not, however, deep-cycling the battery. For the phone, 0% is the point at which the operating voltage of the battery has dropped to a level that is approaching the lower limit for the board set (with a safety factor included). That's almost certainly nowhere near a discharge level that could damage the battery.
So if you want to let/make your phone go to 0% before every charge you are probably wasting your time (except for the slight benefit of frequent battery meter calibration), but also probably not harming the battery.
After the 2nd battery warning notification comes up, I end up just launching youtube and running a video. The use of 3g coupled with video playback gives me an auto shutdown of the unit with 5 mins or so.
Turn on the GPS. That should drain it in less than an hour.
I haven't seen any discharge apps but I do know that the biggest battery vampire is palringo...start palringo and join a group with a lot of members and your battery will drain at least 20% in about 10 minutes...even if there are no conversations going on you will still get a dramatic battery drain running palringo in the background
Haha, or use an older version of S2U That drains your battery like crazy too.
Way to discharge a full battery within an hour:
- Start Wifi and let it stay on (no need to connect).
- Start Bluetooth and keep it on (also no need to connect).
- Open Google maps and let it use GPS
- Put Google maps in the background and start playing Teeter.
it's almostly no necessary......
mikeloeven said:
i am one of those anal people who likes to keep his battery in good condition by always letting it empty completely before recharging and i have noticed alot that i run into a situation where i need the phone fully charged for some reasion or another but dont have the time to sit around with all the nic's turned on waiting for it to die. i have seen a battery discharge feature on some devices that will rapidly drain the battery to 0 so it doesent develope memory when you plug it back in i was wondering if anyone has made one of these for the raphael?? any links would be apreciated.
i have already rtfw'ed and searched everyone seems so obsesed with prolonging battery life not draining it so i have had no luck
Click to expand...
Click to collapse
These batteries actually get hurt by completely discharging - you're not supposed to do that - you'll kill the battery by bringing it down to 0% too often..
(but to answer you - that's easy.. turn it on.. this phone's a battery hog..)
-m
There's an interesting artice in The Reg about lithium battery maintenance (albeit more related to netbook and laptop batteries).
http://www.reghardware.co.uk/2009/05/07/beginners_battery_maintenance/
not needed, but just run palringo and google maps while listening to music streamed from di.fm in Kinoma. (pretty much what I run day in and out )
Try the following link
http://forum.xda-developers.com/showthread.php?t=516458
Jouke74 said:
Way to discharge a full battery within an hour:
- Start Wifi and let it stay on (no need to connect).
- Start Bluetooth and keep it on (also no need to connect).
- Open Google maps and let it use GPS
- Put Google maps in the background and start playing Teeter.
Click to expand...
Click to collapse
this works for me
Hi Guys!!
i've done what this link told
http://forum.xda-developers.com/showpost.php?p=10092321&postcount=11053
but everytime i reach 100% and unplug the charger, my battery percentage immediately shows 97%, be it charging with the phone off or on....
i already did wipe my battery stats in recovery a few times, the first time only it showed that the stats were wiped, after that every time i wipe the stats, it immediately goes back to the previous menu, without stating whether the wipe was carried out or not....
can someone help this noob out here.... thnx
FYI, i just installed darky's rom v8.0 with Voodoo's kernel 5.2(lagfix disabled)
when i was on stock, my 100% could last me about nearly half an hour
I have this problem too. (I am on Darky 9.02 and have seen it in Darky 8.0 too). BUT if your battery life is satisfactory then don't worry about it.
hows the performance on v9.02 bro?
mab71 said:
hows the performance on v9.02 bro?
Click to expand...
Click to collapse
Here is another post on calibration (from Darky himself)
http://darky.ficeto.com/community/index.php?threads/guide-how-to-calibrate-your-battery.321/
mab71 said:
hows the performance on v9.02 bro?
Click to expand...
Click to collapse
9.02 is good but then so was 8.00. I personally think 8.00 was faster but its only been a few days and am still experimenting. I may remove the lag fix and still need to see if my battery is draining faster.
Also look at this post: Has some interesting but unverified info about the drop from 100% to 97/98% after unplugging
http://darky.ficeto.com/community/i...-how-to-calibrate-your-battery.321/#post-3839
Do you really want it on 100%? Easy, once it says charged, leave it on the charger for another hour and when you unplugged it should stay 100 for a while
Sent from my GT-I9000 using XDA App
Problem posted hundreds of times along with solutions like search the Rom makers forum and read the posts re this problem for starters .
Simple solution save time and effort is to ignore it .
jje
thanx all for the advices.... tried the QueenAmy method, result is:
heavily used phone: battery 'died' at 2%(???)
charged phone until 100%(phone off)
switched phone on while still charging: 97% (didnt have to unplug charger)
waited...then it went from 97% straight to 100%.(funny)
then went into recovery to wipe bat stats.
rebooted and unplugged charger, battery still at 97%....
now trying to charge a bit more longer to see if can change anything... (fingers crossed)
icejagans said:
Do you really want it on 100%? Easy, once it says charged, leave it on the charger for another hour and when you unplugged it should stay 100 for a while
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
not working bro...
left it on for about an hour, unplugged, straightaway the percentage drops to 98...
It's just a change in 2.2.1.
In 2.1/2.2, they 'stretched' out the battery life a bit to mark it up to 100%, in 2.2.1 they decided to just show it at the actual value. The reason your battery won't charge to 100% is to prolong the battery life, because if the charger always charged to 100% it would have a high chance of overcharging and damaging your battery over time.
There's no real change in battery life.
I reverted back to 2.2 and still have the problem. Maybe i shouldve flashed on 100% battery... Is it possible to solve if i do another fresh flash with 100% battery?
Sent from my GT-I9000 using XDA App
nwsk said:
It's just a change in 2.2.1.
In 2.1/2.2, they 'stretched' out the battery life a bit to mark it up to 100%, in 2.2.1 they decided to just show it at the actual value. The reason your battery won't charge to 100% is to prolong the battery life, because if the charger always charged to 100% it would have a high chance of overcharging and damaging your battery over time.
There's no real change in battery life.
Click to expand...
Click to collapse
Just to clarify this, you actually cant over charge the battery on the SGS nor Li-Ion for that matter, what happens here is that the battery goes on trickle charge pre 2.2.1 and battery degrades faster if its kept at 100%, 40% is optimal for storage now with the recent changes the phone will pretend it has charged upto 100% but will stop anywhere from 99~97% yes there is no loss in battery life but dont consider 97% as the new 100%, theres already a 3% loss in this to begin with.
EarlZ said:
Just to clarify this, you actually cant over charge the battery on the SGS nor Li-Ion for that matter, what happens here is that the battery goes on trickle charge pre 2.2.1 and battery degrades faster if its kept at 100%, 40% is optimal for storage now with the recent changes the phone will pretend it has charged upto 100% but will stop anywhere from 99~97% yes there is no loss in battery life but dont consider 97% as the new 100%, theres already a 3% loss in this to begin with.
Click to expand...
Click to collapse
thanks Earl.... but is there a solution for my prob here, or do i just have to ignore it?
thanks Earl.... but is there a solution for my prob here, or do i just have to ignore it?
Is not a problem its the current design .
all the other millions of posts on the subject no way found to increase the figure .
jje
thnx mate.... i guess i'll just have to chill about this....n stop wasting my time right... ;-)
it was revealed by "Dianne Hackborn" from google android team a while ago. i'm posting it here because some of p970 users still doing this calibration thing.
here is the post:
"The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/ directory."
No, it does not.
This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it go away.
Click to expand...
Click to collapse
murrun said:
it was revealed by "Dianne Hackborn" from google android team a while ago. i'm posting it here because some of p970 users still doing this calibration thing.
here is the post:
Click to expand...
Click to collapse
lol you got it all wrong. he says that the battery indicator has nothing to do with tje battery stats app and then explains whar battery stats app does. this has nothing to do with calibration and if you still think calibration is useless then do a simple check. after a period of not calibrating your battery and using your phone heavily (2-3 hours of gaming for example), or even better after using your phone extensively while charging, let it go to full 100%. At that point when the phone thinks that it is full it stops charging cause the integrated safety tells it that it is full. turn off the phone remove battery for a couple of minutes and then insert it and plug it on charger. you will notice that it is charging again. turn it on withou unplugging and see the battery level. can be as low as 80ish %. which means that if you hadnt done that all that juice would not charge and be left unused. try it...
jimakos29 said:
lol you got it all wrong.
Click to expand...
Click to collapse
Well, no, actually you did. What she said was that deleting the batterystats.bin does nothing more that resetting the battery usage tracking. She also said what's in the file and it sure looks like it could not even be used for anything else. You could check the code to see. Otherwise, just trust her.
1aca said:
Well, no, actually you did. What she said was that deleting the batterystats.bin does nothing more that resetting the battery usage tracking. She also said what's in the file and it sure looks like it could not even be used for anything else. You could check the code to see. Otherwise, just trust her.
Click to expand...
Click to collapse
yeah but calibration is not about battery stats. is about geting your phone to understand that it is not fully charged yet even though it thinks it is. try what I suggested and you will see. the apps for calibration do nothing as they say when it is fulmy charged leave it for some more till the program tells you it is ok. actually when phone perceives itself as charged it stops charging so those programs do nothing. It is all about forcing it to fully charge once in a while (I do it once a month) by removing battery once it says it is charged and reinserting after a few minutes and recharge it and then repeating until the time that i plug it and it wont charge anymore. wiping battery stats is NOT calibrating never was or never considered calibrating. and the thread was about how calibration doesn't work (which does) not about how battery stats wiping doesn't work (which it doesnt)... so if op doesn't distingush between calibration and battery wiping and refera to the latter as the former then it is not my fault. To sum up,what the op said was that we shouldnt do calibrations because wiping battery stats doesn't work and what I said was that battery stats has nothing to do with calibration.
i'm not android veteran. but when i came across "batery calibration" term, it means "removing batterystats" at this community. so, i gues my point isn't that wrong.
murrun said:
i'm not android veteran. but when i came across "batery calibration" term, it means "removing batterystats" at this community. so, i gues my point isn't that wrong.
Click to expand...
Click to collapse
well unfortunately it is not. by all means try what i said and you will see that although your battery appears charged it will charge some more and again and again before it stops charging and is really full. if i doesnt then it is calibrated if not it getsvcalibrated when after inserting it, it wont charge anymore. then after some time again (maybe a month maybe less) you will see it happening again. trust me batteries is what I make a living from.
I don't see how calibrating could hurt so if you think it helps do it. If you don't, then leave it. I did it after flashing and no ill effects.
jimakos29 said:
yeah but calibration is not about battery stats. is about geting your phone to understand that it is not fully charged yet even though it thinks it is. try what I suggested and you will see. the apps for calibration do nothing as they say when it is fulmy charged leave it for some more till the program tells you it is ok. actually when phone perceives itself as charged it stops charging so those programs do nothing. It is all about forcing it to fully charge once in a while (I do it once a month) by removing battery once it says it is charged and reinserting after a few minutes and recharge it and then repeating until the time that i plug it and it wont charge anymore. wiping battery stats is NOT calibrating never was or never considered calibrating.
Click to expand...
Click to collapse
That's just plain wrong. Shall I link to a few respected "battery calibration" tutorials that revolve around deleting the batterystats.bin? Heck, there's even an option for it in CWM Recovery.
jimakos29 said:
and the thread was about how calibration doesn't work (which does) not about how battery stats wiping doesn't work (which it doesnt)... so if op doesn't distingush between calibration and battery wiping and refera to the latter as the former then it is not my fault. To sum up,what the op said was that we shouldnt do calibrations because wiping battery stats doesn't work and what I said was that battery stats has nothing to do with calibration.
Click to expand...
Click to collapse
So what do you think happens when you remove the battery from your phone for a few minutes then put it back?
Battery Stats myth
1aca said:
That's just plain wrong. Shall I link to a few respected "battery calibration" tutorials that revolve around deleting the batterystats.bin? Heck, there's even an option for it in CWM Recovery.
Click to expand...
Click to collapse
I have done and still doing a lot of reading in this regard. The battery stats can only be held responsible for calibration if it holds amperage and voltage values set for the phone stock battery. That myth is currently considered debunked as this file is considered only to be linked for UI purposes. It all comes down to how actually does the phone measure the battery level. If there were in-built values for voltages and current, the concept of plug and play extended batteries would be doomed and they would have been accompanied by a detailed calibration process. Then there is also the discussion of Max 17042 (I am a SGS2 user), the fuel gauge chip and how it works. Frankly, I think we first need to understand how the phone measures the battery and against which parameters, are they preset or change on the go and what are the limits.
1aca said:
So what do you think happens when you remove the battery from your phone for a few minutes then put it back?
Click to expand...
Click to collapse
I was trying this method just now and what happened was after i got the 100% signal, i unplugged the battery and after giving it a rest of few minutes, plugged it back in (a new 2000 mAH extended battery by Samsung). When i l plugged in the charger again, it start charging back showing that there was either power leakage or that is what calibration is all about. Did that two three times and when finally switched the phone on, it was 100%.
samurai jacko said:
I was trying this method just now and what happened was after i got the 100% signal, i unplugged the battery and after giving it a rest of few minutes, plugged it back in (a new 2000 mAH extended battery by Samsung). When i l plugged in the charger again, it start charging back showing that there was either power leakage or that is what calibration is all about.
Click to expand...
Click to collapse
You are doing what is needed to reach real 100%, a second charge cycle, see article.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries/
As stated there it will reduce battery life but increase runtime after charge...
There's nothing good without evil ;-)
murrun said:
it was revealed by "Dianne Hackborn" from google android team a while ago. i'm posting it here because some of p970 users still doing this calibration thing.
Click to expand...
Click to collapse
if you got clockworkmod recovery charge your phone to 100% (8-12 hours charge should do) then go to your recovery then select advanced then there should be option for wiping battery. Hopefully it'll work!!!
Hello...
When i try to make full my battery (when phone is on or off) and when i see the 100% of battery, battery indicator down few unit instantly! when i disconnect the charge cable...
in otherwords my battery can be full and looks as 100%, but when i disconnect it from the power socket, indicator is donw immediality!
Have you an idea? Thanks!
I have same problem ! Any idea to solved ?
Sent from my GT-I9000 using xda premium
Try the battery calibration app from market if your phone is rooted...
It's more than likely a battery problem,check your chargers and other.
It is perfectly normal and a built in feature to stop overcharging the battery. If it is dropping to say 97-99% you have no problem.
ankaka said:
It's more than likely a battery problem,check your chargers and other.
Click to expand...
Click to collapse
battery calibration works on ICS?
do u still have ur warranty? it might be hardware internal problem?
It is possible to try to make calibration from CWM...
i also got the same problem.. anyone can help?
ColinB63 said:
It is perfectly normal and a built in feature to stop overcharging the battery. If it is dropping to say 97-99% you have no problem.
Click to expand...
Click to collapse
+1
It's a protection made by samsung,
On ICS with some kernels, we can removed this protection with NStools App's
I saw this problem even phone is not boot, so i think this is not a OS problem, maybe kernel?
However i'll try a calibration tool, i waiting for full charge... i'll back
But comments tells "this is normal and this is an protect by Samsung"... so nobody's phone is never don't look as %100 after plug-out? all of them is looks under %100 when plug-out?
Thanks for all comments..
It would seem that all phones charge to roughly 95% then stop. Sometimes the software will then display 100% instead of displaying the true charge of the battery.
After a lot of calibrations (drain & full charge, batterystats reset etc.) still battery indicator down to 98% after plug-out (even looks 100% when plug-in)... still is this normal?
Try battery calibration from market(the phone must be rooted)
shadow60 said:
+1
It's a protection made by samsung,
On ICS with some kernels, we can removed this protection with NStools App's
Click to expand...
Click to collapse
ColinB63 said:
It is perfectly normal and a built in feature to stop overcharging the battery. If it is dropping to say 97-99% you have no problem.
Click to expand...
Click to collapse
The OP should listen to these two fellas - lithium ion batteries should not be charged to 100%, nor depleted to 0% as this can effect battery longevity. The protection level is often ~ 3% away from max.
It's funny that people are happier when they see 100% on their battery, even though if it would really be correct 97% of battery capacity.
Fake 100% or real values?
Sent from my sandwiched SGS
My XT1092, recently got updated to Lollipop i.e. Android 5.0
Two of my battery runs, starting from 100% full charge came down to like 5% and the phone shut down automatically as if it was 0%
Also on a side note, i did not put any mode on the battery saver mode for those two runs.
Now to test it, i kept my battery saver to start at 5% but i am not sure if it will run at 5% or just shut down
Anyone got an idea/solution for this issue ??
P.S. Even Motorola care chat, does not have an answer, all they said is to keep my phone in safe mode for a day and check it out....
Mine just did this the other day. When I pressed the power button it showed the battery with a little red fill and a huge yellow triangle with an exclamation mark in it. Also happened last night.
I have also had the same issue xt1092 and on lollipop.
well...
yea man, so the thing is motorola support said that, keep ur phone in safe mode for a day and recheck the issue...
so idk... :/
i am checking my battery use and for now i have kept my battery saver on 5% so i hope it starts on battery saver itself.. rather than shutting down...
My XT1095 does the same thing. Really annoying! Its really lying to you about how much battery is left if its going to do that. I just know that if i'm going below 10% i better run to find a charger ASAP!
M3drvr said:
My XT1095 does the same thing. Really annoying! Its really lying to you about how much battery is left if its going to do that. I just know that if i'm going below 10% i better run to find a charger ASAP!
Click to expand...
Click to collapse
it is quite misleading to say the least..
i did not have this issue with KitKat though..
might be a lollipop thing only
I'll join this list. Really annoying, and never happened on 4.4.4
I've never let my battery get that low honestly, but...
Keep in mind that your battery percentage is completely an estimate. Battery capacity is measured in mAh, but there's no way to measure the current charge capacity in mAh of a battery. The only way to do so would be to run all of the power out of the battery and record the power over time, but then you'd have a dead battery. As a result, the system estimates your remaining battery capacity as a percentage based on the current voltage of the battery. But that can be different depending upon how quickly you've drained the battery and other factors.
So, Android has methods built-in which automatically calibrate the battery, but they only work properly if you fully charge and discharge your device on a regular basis. A battery starts off weak, then it gains strength after a few charging cycles, finally over time it peaks and then begins to taper off as far as battery life goes.
You've likely not taken your device to 0% for a while. The android solution is to fully discharge and recharge your battery a few times to allow it to recalibrate. Slow charging is the best for recalibration. Plug it into a computer for 500mAh charging rather than using a charger. Chargers can charge quicker(1.5A) but do not allow the device to calibrate as well due to the high amperage.
So, just use your device and let it drain fully, and charge fully on a computer USB port and it should recalibrate itself.
InspectifierWrectifier said:
So, Android has methods built-in which automatically calibrate the battery, but they only work properly if you fully charge and discharge your device on a regular basis. A battery starts off weak, then it gains strength after a few charging cycles, finally over time it peaks and then begins to taper off as far as battery life goes.
You've likely not taken your device to 0% for a while. The android solution is to fully discharge and recharge your battery a few times to allow it to recalibrate. Slow charging is the best for recalibration. Plug it into a computer for 500mAh charging rather than using a charger. Chargers can charge quicker(1.5A) but do not allow the device to calibrate as well due to the high amperage.
So, just use your device and let it drain fully, and charge fully on a computer USB port and it should recalibrate itself.
Click to expand...
Click to collapse
While it does help the calibration, it's very bad for your battery to do this deep discharge multiple times.
raptir said:
I've never let my battery get that low honestly, but...
Keep in mind that your battery percentage is completely an estimate. Battery capacity is measured in mAh, but there's no way to measure the current charge capacity in mAh of a battery. The only way to do so would be to run all of the power out of the battery and record the power over time, but then you'd have a dead battery. As a result, the system estimates your remaining battery capacity as a percentage based on the current voltage of the battery. But that can be different depending upon how quickly you've drained the battery and other factors.
Click to expand...
Click to collapse
Sometimes you don't have a choice about letting battery drain get that far.
But regardless, its most definitely an issue with lollipop. Uncountable android devices, and this is the first time I've ever experienced this issue. Happens religiously at 5%. So its never happened before on any device I've used, including this moto x pure on KitKat, and it always happens at 5%.
If it were a true calibration issue, one would think it'd happen at different percentages. However I'm certain this is a bug.
qwerty12601 said:
Sometimes you don't have a choice about letting battery drain get that far.
But regardless, its most definitely an issue with lollipop. Uncountable android devices, and this is the first time I've ever experienced this issue. Happens religiously at 5%. So its never happened before on any device I've used, including this moto x pure on KitKat, and it always happens at 5%.
If it were a true calibration issue, one would think it'd happen at different percentages. However I'm certain this is a bug.
Click to expand...
Click to collapse
I understand that you don't always have a choice, I just meant that I have no insight as to the possible bug since I've never experienced it. And to clarify, it's not really a "calibration" issue, it's a matter of there is no way to accurately measure the charge of the battery.
Honestly, Google could have even implemented this intentionally in order to prevent damage to the battery from a deep discharge.
raptir said:
I understand that you don't always have a choice, I just meant that I have no insight as to the possible bug since I've never experienced it. And to clarify, it's not really a "calibration" issue, it's a matter of there is no way to accurately measure the charge of the battery.
Honestly, Google could have even implemented this intentionally in order to prevent damage to the battery from a deep discharge.
Click to expand...
Click to collapse
But android has been completely accurate in the past. Right down to 1 single percent.
And there's no way google implemented this as a safety feature. If they were legitimately trying to do this, they'd just have the battery monitor read less than actual capacity as to not confuse the operator.
As well as they have what they believed to be a big feature, "battery saver" which has the option to activate at 5%. So them killing your phone at 5% intentionally doesn't hold water.
qwerty12601 said:
But android has been completely accurate in the past. Right down to 1 single percent.
And there's no way google implemented this as a safety feature. If they were legitimately trying to do this, they'd just have the battery monitor read less than actual capacity as to not confuse the operator.
As well as they have what they believed to be a big feature, "battery saver" which has the option to activate at 5%. So them killing your phone at 5% intentionally doesn't hold water.
Click to expand...
Click to collapse
No it hasn't. It may not have shut down until after it read 1%, but it has not been accurate because there is no accurate way to measure the current charge of a battery.
http://batteryuniversity.com/learn/article/how_to_measure_state_of_charge
The fact that it consistently shuts down at 5% does seem like a bug, but it's a very odd bug since it seems like there would have to be some code to specifically tell the phone to shut down.
raptir said:
No it hasn't. It may not have shut down until after it read 1%, but it has not been accurate because there is no accurate way to measure the current charge of a battery.
http://batteryuniversity.com/learn/article/how_to_measure_state_of_charge
The fact that it consistently shuts down at 5% does seem like a bug, but it's a very odd bug since it seems like there would have to be some code to specifically tell the phone to shut down.
Click to expand...
Click to collapse
Every android device I've owned, probably 12, including the 3 still in service with me (moto x before lollipop, nexus 7, nexus 4) all have accurate battery meters right down to 1%. Now are they adjusting on the fly and lowering/raising battery percent to accurately match calculations? Probably. But it adjusts to where the battery meter will read down to the very last percent. No surprises.
The whole point of this thread us that some moto x pures are shutting down at 5%. Maybe the battery really is at 0%, maybe its at 5 or 10%, but its a "bug" that the phone is shutting off at 5%. Its rather a flaw in on the fly calculations where its not accurately adjusting at lower percentages, or a software flaw. But it's a bug either way. That's the complaint here.
raptir said:
Honestly, Google could have even implemented this intentionally in order to prevent damage to the battery from a deep discharge.
Click to expand...
Click to collapse
That is was Microsoft did with their Surface tablets, you can change it, I have mine set to power off at 10%
raptir said:
While it does help the calibration, it's very bad for your battery to do this deep discharge multiple times.
Click to expand...
Click to collapse
Wrong. this is the recommended way to use every mobile phone battery. A full charge and discharge is called a cycle, and cycles are how battery lives are rated.
InspectifierWrectifier said:
Wrong. this is the recommended way to use every mobile phone battery. A full charge and discharge is called a cycle, and cycles are how battery lives are rated.
Click to expand...
Click to collapse
Please don't just post "wrong" without anything to back it up.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Table 2 provides details as to why what I said is correct. A 50% discharge will not degrade to 70% capacity for 3-4x as many cycles as a 100% discharge. That amounts to up to double the useful life of the battery assuming your usage stays the same.
InspectifierWrectifier said:
Wrong. this is the recommended way to use every mobile phone battery. A full charge and discharge is called a cycle, and cycles are how battery lives are rated.
Click to expand...
Click to collapse
Have fun killing your battery very quickly by fully discharging all the time
raptir said:
Please don't just post "wrong" without anything to back it up.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Table 2 provides details as to why what I said is correct. A 50% discharge will not degrade to 70% capacity for 3-4x as many cycles as a 100% discharge. That amounts to up to double the useful life of the battery assuming your usage stays the same.
Click to expand...
Click to collapse
Mobile device batteries are designed to be "fully" depleted. They are software controlled. You will never discharge a properly controlled battery 100%. This is why your device still has power to turn on and tell you that the battery is too low to turn on.
There are always exceptions to the rule. However, mainstream devices will almost always keep the battery at a safe level.
You cannot use a single chart on all lithium ion batteries. In fact, every one is different due to chemical and annode/cathode changes. This is why every battery has its own MDS for shipping purposes.
The small changes to batteries cause them to react differently to different usage patterns. When designing a battery these reaction patterns are supposed to be accounted for in the battery calibration.
A key engineering principal: a device should never be capable of destroying itself. Full discharge is normal operation for most devices.