Database Develop

Anyone Have a Battery Discharge App???

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.
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Like many rechargeable batteries, lithium-ion batteries should be charged early and often.
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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.
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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.
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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
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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.
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Click to collapse
this works for me

[Q] Battery Calibration - reboot?

I recently installed Serendipity and made sure the battery was at 100% while doing so (and deleted the battery file). I'm waiting for the battery to drain before I plug it in. Am i supposed to let it charge all the way again? Also, is it safe to reboot the phone while it is draining the first time? I want to install something using clockwork.
I'm being careful about this because cognition would report 14% battery life after 33 minutes of display usage and display eating up 96% of my battery....

killsto said:
I recently installed Serendipity and made sure the battery was at 100% while doing so (and deleted the battery file). I'm waiting for the battery to drain before I plug it in. Am i supposed to let it charge all the way again? Also, is it safe to reboot the phone while it is draining the first time? I want to install something using clockwork.
I'm being careful about this because cognition would report 14% battery life after 33 minutes of display usage and display eating up 96% of my battery....
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There's a complete thread on this, I suggest you look it up.
After you reset your battery stats, it is suggested to do a few full battery circle (use til dead, full charge, rince and repeat). You should be fine after 2-3 circles.
Note tho that it will not improve your battery life. All it does is a attempt to tell your phone what % your battery life is exactly.
For your fast drain, I don't think it has anything to do with your battery calibration or your ROM. It's most likely a app (or a few) that are draining alot of juice or that are running w/o realy being needed. (Check your running services.. make sure you know which one to stop and not to***)
Also using a app/widget like advanced task killer can help your battery life as it will stop every app running with a simple touch. I suggest doing it anything you're not using your phone.
One last thing, display eating 96% of your battery is normal.. it's not telling you it's using 96% of your battery. It's telling you that during the time your phone as been unplugged, your display use was your main action.. probably cause you didn't make many calls or anything else.. Display is just about everything you do with your phone so it will always have some high numbers like that.

BWolf56 said:
There's a complete thread on this, I suggest you look it up.
After you reset your battery stats, it is suggested to do a few full battery circle (use til dead, full charge, rince and repeat). You should be fine after 2-3 circles.
Note tho that it will not improve your battery life. All it does is a attempt to tell your phone what % your battery life is exactly.
For your fast drain, I don't think it has anything to do with your battery calibration or your ROM. It's most likely a app (or a few) that are draining alot of juice or that are running w/o realy being needed. (Check your running services.. make sure you know which one to stop and not to***)
Also using a app/widget like advanced task killer can help your battery life as it will stop every app running with a simple touch. I suggest doing it anything you're not using your phone.
One last thing, display eating 96% of your battery is normal.. it's not telling you it's using 96% of your battery. It's telling you that during the time your phone as been unplugged, your display use was your main action.. probably cause you didn't make many calls or anything else.. Display is just about everything you do with your phone so it will always have some high numbers like that.
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Yeah, I've seen the thread before but forgot about it. Thanks for reminding me. And my point about the display was that it was on for such a short amount of time, yet still killing my battery.
I am now down to 30% or so after 3 hours or more of display time after calibration & rom switch- and I was streaming music through WiFi and using Bluetooth headphones. So it it seems like it made a huge difference =D
Thanks

[Q] Battery capacity/ calibration problems

Hi there. New here.
I have a Galaxy S I9000 running CM7.1.
Recently, I have bought one of these fat batteries from here:
dealextreme.com/p/3-7v-3500mah-high-capacity-battery-pack-with-back-cover-for-samsung-i9000-galaxy-s-54276
I did not have much expectations, but the reviews were pretty positive, so I went for it.
To my "surprise", the thing did not work much better than the original battery. Obviously I went around looking for what could be the issue (I did not give up on it just yet), and I found all sorts of data about "battery calibration" techniques and such.
I charged the thing to 100%, and used the "battery calibration" APP from the Market. Did a reboot, and took it for a spin (day of avg. usage). Nothing changed about the performance of the battery.
I gave up and returned the old battery. Re-did the calibration procedure from above ("just in case").
To my surprise, all these games apparently "damaged" the battery life of the original battery somehow!
I got down to 50% charge after 10hrs of *no usage* at all (The battery stats show 40% for "cell standby"). No CPU intensive processes were running during this time.
Now, it's obvious that the battery itself did not get damaged in any way. What this does show, however, is that this "calibration" procedure did have some unexpected "persistent" impact.
One thing for sure, is that I do not understand what actually happens during this "calibration" procedure. From what I read, it deletes some "battery stats" file that is later regenerated by the OS over time.
My questions are as follows:
1) Any one seen anything like this before?
2) Will the "life" of the original battery "improve" as time goes by (as the battery stats are collected), or am I screwed without doing something about it?
3) Is there still hope for the fat battery I bought? Seeing that there are significant "energy losses" dues to some software calibration issues.
4) Is there a "right" way for switching between batteries with different capacities?
4) Anyone can recommend some APP that shows better stats about the battery? For instance, a representation of the contents of this "battery stats" file? How many MAHs the battery "has"? Any kind of interesting "debug" data?
I'd really love to have my (battery) life back.
Thanks.

Bump.
Anyone?

http://forum.xda-developers.com/showthread.php?t=1283316
Sent from my GT-I9000 using xda premium

keyme said:
Hi there. New here.
I have a Galaxy S I9000 running CM7.1.
Recently, I have bought one of these fat batteries from here:
dealextreme.com/p/3-7v-3500mah-high-capacity-battery-pack-with-back-cover-for-samsung-i9000-galaxy-s-54276
I did not have much expectations, but the reviews were pretty positive, so I went for it.
To my "surprise", the thing did not work much better than the original battery. Obviously I went around looking for what could be the issue (I did not give up on it just yet), and I found all sorts of data about "battery calibration" techniques and such.
I charged the thing to 100%, and used the "battery calibration" APP from the Market. Did a reboot, and took it for a spin (day of avg. usage). Nothing changed about the performance of the battery.
I gave up and returned the old battery. Re-did the calibration procedure from above ("just in case").
To my surprise, all these games apparently "damaged" the battery life of the original battery somehow!
I got down to 50% charge after 10hrs of *no usage* at all (The battery stats show 40% for "cell standby"). No CPU intensive processes were running during this time.
Now, it's obvious that the battery itself did not get damaged in any way. What this does show, however, is that this "calibration" procedure did have some unexpected "persistent" impact.
One thing for sure, is that I do not understand what actually happens during this "calibration" procedure. From what I read, it deletes some "battery stats" file that is later regenerated by the OS over time.
My questions are as follows:
1) Any one seen anything like this before?
2) Will the "life" of the original battery "improve" as time goes by (as the battery stats are collected), or am I screwed without doing something about it?
3) Is there still hope for the fat battery I bought? Seeing that there are significant "energy losses" dues to some software calibration issues.
4) Is there a "right" way for switching between batteries with different capacities?
4) Anyone can recommend some APP that shows better stats about the battery? For instance, a representation of the contents of this "battery stats" file? How many MAHs the battery "has"? Any kind of interesting "debug" data?
I'd really love to have my (battery) life back.
Thanks.
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Click to collapse
1) You're running CM7 which is known to be a battery hog so dont expect phenomenal battery life with it. Also a lot of the aftermarket batteries are fakes with their actual mAH being even lesser than that of the original samsung battery the i9000 ships with. And the battery you bought costs $15 which is way too cheap for a 3500mAH battery which basically means the battery is a fake and you were ripped off.
2) After deleting the battery stats during the calibration process it takes a few charge-discharge cycles for the battery 'life' to improve. Give it a week to settle in.
3) there is no hope for the battery you bought, unless you can return it for a refund maybe? if you cant return it, you might want to take off the battery label and see the actual mAH of the fat battery (as this is sometimes printed on the plastic shell of the battery underneath the label).
4) When switching batteries you simply run the battery calibration after you've fully charged the new battery in your handset and then you drain it until the phone fails to boot. Then you charge it to 100% without turning the handset on
5) Battery Monitor Widget is an app you might want to take a look at but it does not have the exact battery capacity for each phone pre-fed into its databases since the battery capacities vary with the manufacturer and model of each handset. It relies on you entering the exact battery capacity from your battery label into the application before it can function properly.

Thanks for the response.
I'll do a few charge / discharge cycles, and see if it improves over the week.
Just for science, I peeled off the label of the fat battery and found no useful data there. Only some kind of S/N which did not show any results on Google.
Shame. I guess I'll just leave a negative review for the battery and be smart enough the next time.

[Q] Ativ S - battery draining quickly

Hello,
I have an Ativ S and about a week ago the battery started to drain very quickly - about 15 to 20 per cent an hour.
I do not have wifi, bluetooth or gps on and usually the battery lasted 2 -3 days but now I need to recharge twice a day.
I thought that this was maybe caused by a program so I reset my phone and reinstalled only a few programs, but that did not work.
1) Is there any way that I can see if an app is draining my battery quickly?
2) Could this be a hardware problem? If so, how can i tell if it is the battery or the phone? I think that my warranty has expired, so returning it is not an option.
PS It is on GDR2, no interop unlock or any other tweak whatsoever.
Thanks

I'm not going to say it's flat-out impossible for an app to drain your battery that fast in the background, but it's not far off. If you want to be really sure, though, enable Battery Saver mode immediately after unplugging the phone (at full charge) and don't use it. Battery Saver prevents all background app activity, so there won't be any apps running and therefore they *cannot* be affecting the battery.
I'm pretty sure that, given the rate of drain and the fact that it persisted through a hard reset, you have a hardware problem. The good news is that it might just be a bad battery - that is a thing which happens, and it's even fairly common on batteries a couple years old - in which case it's a good thing you have a phone with a user-replaceable battery! The way I'd test that is to swap your battery into somebody else's ATIV S and see if the problem persists. If so, it's the battery; if not, it's your phone. Alternatively, you could just buy a second battery and see if that helps.
One other thing to check: if the battery really is still working and the phone is draining it that fast, it'll be dissipating a lot of energy as heat. Does the phone stay abnormally warm while the battery drains like that? That would be a sign of a problem with the phone or the OS, as opposed to the battery itself.
Oh, and I'm pretty sure there are some battery diagnostics and charging statistics located in the Diagnosis app (##634# in the dialer). I forget the code for them but I have all of the codes written somewhere; alternatively, you could do some searching. You could compare the reported battery capacity there with the expected (design) capacity.

I reset my phone again, installed only Viber and till so far, the battery drain seems to have disappeared (or at least improved).
Some users on wpcentral reported that they had major issues with battery drain caused by Whatsapp.
I used Whatsapp for quite some time but never had any problems( till now).
Maybe the last update caused this, i dunno...
Anyway, thanks for your answer.
I will see how it goes and I will let you know.

S3 mini Displaying Wrong Battery Percentage After Replacing battery and New Rom.

Hey guys, its my first post on this forum (or on any forum for that matter) so I apologize if this is in the wrong section . But recently I've been having a problem with my S3 mini and hoped I could get some help on here. So a few days ago I got a 4000mAh - 3.7V extended battery for my phone because my old one had broken. The old battery was the stock battery that came with the phone. Before I bought the new battery I also installed the PacmanROM on my android. But since I got the battery the percentage my android displays has been completely wrong. I'm pretty sure that the battery is fully charged after over 16 hours of charging but the percentage the phone displays is only around 65% and no matter how long I charge it the percentage never reaches 100 and it will stay on a certain value that will randomly fluctuate if I restart the device. So is there anyway to make my phone display the correct percentage? Thanks for your help!

In my opinion, extended batteries are more trouble than they're worth. I have dabbled with them but all have failed at some point (even brand new). If you put the battery on a flat surface and it 'wobbles' at all then its duff. I use stock batteries. Sorry if this is not what you want as an answer but just my experience with extended batteries.
Sent from my GT-I8190N running CandyKat

Thanks for the input anyway! I've never tried any other extended batteries so I ignorantly decided to get one hoping it would work well. But anyways I believe that its not the battery that's at fault since the battery seems fine to me (no bumps showing a faulty battery). I have a feeling that its my old battery that's at fault or the system still possibly assuming its a stock battery. Well I'm no expert .

Awfully I can post the link for fix this..
The APP for fix this 'bug' is "Battery Calibration", it delets a battery file, and after restart the cellphone, that file is remade with correct data.

Well I looked into Battery Calibration and have managed to find a fix! I charged my phone to "full" (which my phone only displayed as ~50% at the time) and once the battery percentage stopped increasing I left the phone to charge for a few hours after that. Then when I was sure that the battery is actually full, I installed a battery calibration app and "calibrated" my battery which deleted the batterystats.bin file. I then waited for my phone to completely run out of charge, which I sped up with an app called "battery discharge", then when I let the phone switch off by itself from an empty battery. Once the phone restarted the battery percentage displayed was correct.

Try Battery calibration

isnt battery callibration a complete myth and placebo? deleting batterystats.bin shouldnt help as it just contains data about what consumed battery juice