Develop Bugs

[Q] Battery worn out?

Hello,
My desire, after:
an inability to restore nandroid backup
a possible corrupted sd card
a usb brick and inability to mount some nand partitions
and finally succeeding in fixing it, now using/running:
2.29.405.5 stock rooted rom
a new sd card (samsung 16GB class 6)
clockworkmod 2.5.0.7
s-off
seems that has battery issues. When it reaches below 30%, it drains a lot faster. In example few minutes ago, the battery was below 30% level and after sending a couple of sms messages the phone, without the "Connect the charger" indication shut down. Not even the battery icon was red.
What should I do?
After flashing the above ROM I ran an app called battery calibration (could this be the culprit?).
I haven't experienced such problems before the whole mess mentioned above.
Thank you for your time.

Well, it seems to me like a "classic" battery meter calibration issue.
TVTV said:
In order to calibrate the battery meter - FYI the battery itself cannot be calibrated, as Li-Ion batteries have a very low memory compared to old Ni-Cd etc. batteries - you have to go through the following procedure:
1) charge the battery to 100%;
2) let the battery discharge until the phone shuts itself down;
3) plug the wall charger into the phone, boot the phone up then charge the battery to 100% without interruptions.
If the above procedure does not yield the expected results, you can try fully charging the phone (LED showing green) with it completely turned off (after completely draining it). Again, the charging procedure should not be interrupted.
Source: personal experience - had to do this twice after installing new ROMs, as the phone was shutting down at ~14% (working like a charm now).
Regarding the matter of battery wear because of complete discharges, Li-Ion batteries do indeed have a lower cycle count than old-school batteries, but the standard charge/discharge number a Li-Ion battery can take is ~350, so you can't damage the battery pack by doing a full cycle per month (required to keep the battery meter accurate).
Good luck!
Click to expand...
Click to collapse

Did this work you mate? I have the same issue with my year old batter now... the phone shuts down @ 40% without any warning... and when I charge it, it starts from 0% and as soon as it hits the 58% mark, it jumps to 100% by itself... and i cant seem to figure out what the hell could I do to fix it... I tried calibrating the battery using the awesome method described here http://forum.cyanogenmod.com/topic/11823-battery-calibration-thread 3 times and nothing changed...

bump bump.. i really need help on this guys... :/
Sent from the infinity and beyond...

Weird that after calibration you still get that kind of issues, does this only happen on your current ROM? I have the latest CM in my desire and everything works just fine... Maybe try another ROM if calibration doesn't work to see if it's a hardware or software issue

i actually had issues with MIUI first.. the phone randomly shut down by itself but when i turned it back on, it was perfect... then i switched back to Oxygen and while everything was fine, suddenly one day the phone died at 40% :S and from that day on the phone charges to 58% and then instantly jumps to 100%... and as soon as it gets to 40% it shuts down itself... i guess i need a new battery but i wanted to see wether i can fix this one somehow so i can use it till the new one arrives...
Sent from the infinity and beyond...

same problem
i have the same problem
my phone turns off at 20% battery
calibration does not help....
and battery is not bad - it works fine
i'm sure its the problem with calibration

kshitijgandhi said:
i have the same problem
my phone turns off at 20% battery
calibration does not help....
and battery is not bad - it works fine
i'm sure its the problem with calibration
Click to expand...
Click to collapse
phone turning off at 20% is fine mate because thats the battery guards against any damage
most of the phones ( smart phones) switch off at 20% as going lower can damage the System .

It shouldnt normally..It's supposed to work fine upto 5%

Have a look at this, it worked for me (but you need a compatible kernel, most AOSP are so)
http://forum.xda-developers.com/showthread.php?t=765609

battery weird fail/very fast discharge

Hey all,
I have the wildfire running with a stable CM nightly (forgot exact version, but already a good year old I think and never any problem with the battery). I have not recently done anything special with my phone (no new radio, ROM, updates, new apps, ...) but since a week or two I have the following problem:
Charging the phone takes first of all ages to reach 100%. And when it's charged, it will crash about 4 hours later. The battery indicator will be at about 35% or higher just before it crashes (thus not at 0). When I reboot (while charging after the crash) however, it says 0 or 1% left. When I then go to the settings -> about phone -> battery , the battery life just INSTANTLY drops from about 60% to zero (see picture)
This problem appeared pretty out of nowhere. Is this a battery calibration problem, or do you guys think the battery is just at the end of its life? I'm aware that this could just be it since the phone is almost 3 years old (bought on day of release here), but it's just acting so strange.
Any help is appreciated,
Thanks,
Maarten

Try the two obvious things
1- wipe dalvik cache and cache partition
2-wipe battery stats
Can you post a screenshot os the battery usage screen

The level indicator is in the first post, the usage (apps etc) I cannot do right now as after wiping it does not reboot anymore (stuck at HTC screen), but it was about 50% for signal and 50% for standby (or what are the 2 largest users in %, I forgot)

Wipe battery stats or manually delete batterystats.bin. Calibrate it. If nothing works reflash your rom. Not a battery prob.

Odp: battery weird fail/very fast discharge
I had similar situation. Change battery. It is broken probably.
Wysyłane z mojego HTC Wildfire za pomocą Tapatalk 2

There seems to be many battery problems for wildfire, I had to abandon mine because of a similar problem, except it would charge to 100% but then drop to 4% within a few hours and wiping battery cache never helped, tried my battery in another wildfire no problems so in the end I gave up with it
But I remember someone saying it was something damaged inside the phone
Anyway good look with your issue hope it gets solved.
Sent from my HTC Desire X using Tapatalk 2

I fixed my booting problem by reflashing the ROM. I also wiped cache/dalvik and battery stats.
The problem remains however. Stays around 100 pretty long, then goes to 80% in less than an hour. And then it crashed around something like 60%. After rebooting it said 34% left.
Guess the only thing else I can try is to completely empty the battery, then recharge it whilst the phone is off.
I'm going to buy a new smartphone soon, so it better just work another month !

wolfway said:
I fixed my booting problem by reflashing the ROM. I also wiped cache/dalvik and battery stats.
The problem remains however. Stays around 100 pretty long, then goes to 80% in less than an hour. And then it crashed around something like 60%. After rebooting it said 34% left.
Guess the only thing else I can try is to completely empty the battery, then recharge it whilst the phone is off.
I'm going to buy a new smartphone soon, so it better just work another month !
Click to expand...
Click to collapse
Yea, wipe battery stats again, sue ur phone till its 0% and charge up to 100%, keep on charging for about 20 mins.. try then if battery shoes properly..

Doesn't seem to solve it... Completely emptied the battery (or at least I'd think it is empty, see further), then charged for like 8 hours whilst phone is off, then wiped battery stats in recovery. Then after rebooting first thing it did was crashing again.
The crashes often seem to be related with internet/apps. I now have internet and poweramp app off and it works fine (no crashes), but when I turn these on, sometimes after a minute it crashes, pretty weird
Also after some crashes, about 15 minutes later I can suddenly reboot, then it showed 15%, then it crashed again. After reboot (without any charging) it showed 65%... The indicator is completely ****ed up it seems...
Guess there is nothing to do but getting a new phone as this is too annoying. Thanks for the help though !

Batt voltage meter defect
I have a exacly same problem.
It is the voltage meter problem. Mine wildy shows 4.07V at fully charged battery which if you measure conected battery on its terminals mulitimiter shows 4.273 so its off by 0.2V. Now the phone will never light green led, it think battery is not charged fully. I checek this with 4 years old and new original htc batts. Same thing, voltage meter defect! If you charge it to full, multimeter shows 4.237V on batt terminals,reboot it and get a spike to 92% it suddenly drops to 78% even though mains charger is still connected and charging! Internal Volt meter also reads dorp from 4.07 to 4.02! :crying:
There i also thread on Desire Z forums of same thing happening here.
Is this HTC using crappy mobo components?

vicryl said:
I have a exacly same problem.
It is the voltage meter problem. Mine wildy shows 4.07V at fully charged battery which if you measure conected battery on its terminals mulitimiter shows 4.273 so its off by 0.2V. Now the phone will never light green led, it think battery is not charged fully. I checek this with 4 years old and new original htc batts. Same thing, voltage meter defect! If you charge it to full, multimeter shows 4.237V on batt terminals,reboot it and get a spike to 92% it suddenly drops to 78% even though mains charger is still connected and charging! Internal Volt meter also reads dorp from 4.07 to 4.02! :crying:
There i also thread on Desire Z forums of same thing happening here.
Is this HTC using crappy mobo components?
Click to expand...
Click to collapse
Htc wildfire is no more released now. It stopped in 2010. This has the answer. That is one of the bug with wildfire.
Sent from my HTC Wildfire using xda app-developers app

Battery issues-wrong charge reported?!

Hi all,
Last week I was using my Note and the battery totally discharged. I plugged it in, let it charge overnight but the following day, I turned it on, started to play a game, 10 minutes later, I closed the game and noticed my battery had drained to about 65%. The battery depleted really quickly and when it got to 1%, it stayed on for ages and then finally died. I turned it back on again immediately and it showed it still had about 60% left. Again, it drained all the way to 0% so I turned it back on and it then showed 17%. I let deplete again and then the thing was properly dead. I charged it up and tried using a couple of battery calibration apps but it keeps happening. As an experiment, I left it playing a video from 100% and the thing died 2:38 hrs later. This isn't right. I've also had my micro sd card wipe and had issues with that since the drain.
Any similar experiences or possible fixes?
Thanks guys

Massyboy said:
Hi all,
Last week I was using my Note and the battery totally discharged. I plugged it in, let it charge overnight but the following day, I turned it on, started to play a game, 10 minutes later, I closed the game and noticed my battery had drained to about 65%. The battery depleted really quickly and when it got to 1%, it stayed on for ages and then finally died. I turned it back on again immediately and it showed it still had about 60% left. Again, it drained all the way to 0% so I turned it back on and it then showed 17%. I let deplete again and then the thing was properly dead. I charged it up and tried using a couple of battery calibration apps but it keeps happening. As an experiment, I left it playing a video from 100% and the thing died 2:38 hrs later. This isn't right. I've also had my micro sd card wipe and had issues with that since the drain.
Any similar experiences or possible fixes?
Thanks guys
Click to expand...
Click to collapse
I had this problem before and the solution is......FORGET ABOUT IT!
just use ur note normally....the cycle of charging and draining gonna fix it but dont let the battery drop that low again....15% is ur minimum limit
Use this code to give u the correct reading of the battery too *#0228#

Anyway of getting that menu up without dialling it in? I have the P600 so can't make calls due to no dialer app
Sent from my SM-G900F using XDA Premium 4 mobile app

Solution for battery drain on Tab S 8.4

Hi everyone.
Just to write a solution for the commonly problem on the battery of this tablet; I had the problem that battery ran out almost on 1 or 2 hours! of use after it turned off I turned on again and the gauge showed for example 30% or some cases 40% of battery I was crazy about that and had to do some research; tried to bring the tablet to warranty but they did not could help me (I don't know why) after that I read there were more users having this problem; some of them suggested to bring the tablet to a repair center or open the tablet and do some technical reparation; the solution is pretty simple that it seems to me; my solution was to open the tablet with a spudger (I don't have one so I made one by sanding a piece of plastic) after that just unplugged the battery conector and reconnected it again; rebooted if recovery mode and erased batterystats.bin, turned off and charged until 100%.
At this point I have been using the tablet by 3 days and the gauge seems to show a more precise battery percentage.

Anybody that is having battery problem, and have checked that a app is not causing the battery drain, should try the battery calibration method below, before opening their tab
Try apps like watchdog or an wakelock checker app, also any apps like alarms and weather check apps or any apps that sync the tab can keep the tab from going to sleep.
On my tab s 10.5 i only charge to 70% and never unless i am doing a calibrate drop below 20%, I use my tab for video, ebook and internet.
I use an app like Gsam to sound an alarm at 20% and 70% when charging, and i dont charge to 100% as it can cause cumulative damage to the battery, check the link below for more info on how to care for lithium based battery`s
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
John.
Below are a few screenshots from my tab s 10.5 , It has been running continuously for 142d without restart and i have a battery life of 3d21h according to Gsam app.
http://i.imgur.com/lHnGxbE.png
http://i.imgur.com/lvwv9Zm.png
http://i.imgur.com/dxfYCgJ.png
You can calibrate the battery like this before you decide to buy a new one
Fully charge the battery with the phone on and when the phone is fully charged, unplug the charger and turn it off.
When your phone is off, plug it into the charger and let it charge to 100% again. The green LED light will indicate when this is don
Next unplug the charger, turn on your phone and set the option to ensure that your screen doesn’t turn off, if you have this option. Then reconnect to the charger and wait for it to charge again to 100%.
Once charged to 100%, unplug the charger again and do not charge until the smartphone turns itself off after reaching a 0% battery level. Once off, fully charge it again and it should work properly. The screen setting can put back to normal again (meaning turn off after a certain amount of time).
phones with oled displays should not show static images for a long time as it can cause burn-in
From AndroidPit
Click to expand...
Click to collapse

Tinderbox (UK) said:
Anybody that is having battery problem, and have checked that a app is not causing the battery drain, should try the battery calibration method below, before opening their tab
Click to expand...
Click to collapse
I might have to give this a try. Like my battery has no problems with its connectors or anything since I have never had that problem. Recently, every time I charge my device, when it charges up to 97%, it immediately jumps to 100%. Rebooting still shows 100%. So when I turn off the device and charge it while it's off, it shows its at 98%. So I know it's an calibration problem. This only happens when charging up to 97%. So I might need to recalibrate again.
-DUHA

You should not discharge to 0% too often, as it can causes curative damage and the battery could actually fail, you would not want that to happen if you are out of warranty, I rarely discharge below 20%, a couple of % inaccuracy is not a problem really.
John.

Tinderbox (UK) said:
You should not discharge to 0% too often, as it can causes curative damage and the battery could actually fail, you would not want that to happen if you are out of warranty, I rarely discharge below 20%, a couple of % inaccuracy is not a problem really.
John.
Click to expand...
Click to collapse
I hardly ever discharge to 0%, I usually charge it when it tells me my battery is low (20-15%). Well, I bought this tablet in July so I have reached probably 300+ charge cycles. I read some threads regarding battery skiping and it happens when either it's uncalibrated, or battery is slowly going bad, and something else I forget. But thanks for the tips on the battery stuff! I never knew charing and discharging fully could do such a thing!
-DUHA

I bought my device from Kuwait so it's firmware belong to united Arab of imarats.
At the beginning , I faced some issues with my device such as. After about 3 weeks I found the the battery stay only for 10 minutes even if it charged to 100%
I had to put my device in charge all the time so I can use it.
I send it to repair center and told them that I need to replace my battery.
After one day they call me and told me that it just asoftware problem and we solve it.
I got it from them use it for just 3 days and found anew problem that the home,back and multitask buttons dosen't work very well . That I need to but it on it's back or use the desktop cover to make it work.
In that point I tried another country firmware with kitkat 4.4.2 and that dosent solve anything
And when I found that the lolipop came to galaxy tab s with France and Canada and sanghfore , I installed it
I found that when I connect the wall charger , the device immediately turn off and give me the sign of battery with out any process in charging and dosent want to turn on.
And when the device work , it give me ablack screen when I shake it between my hand or but it on it's back (such like ablack screen flashing)
I don't know what to do.

Galaxy tab 3 8.0 battery issue

Hi,
Bit long story, I know, but I'll have rooted Galaxy tab 3 8.0 and the problem for few weeks has been that the battery has gone mad.
So, when battery dies and tablet shutdown and I try to start again after a while there's no enough juice to even start fully or if it starts it shows 1% and shutdown immediately. That's as it should be I guess.
BUT, if I plug into charger when batt is empty and it has shutdown it suddenly shows very random percentages like 12%, 45%, 52%. 75% etc totally random even it should be something like 0%-1%.
If I then fully start it android shows that same big percentage but batt won't last a minute if I plug off the charging cord.
If I then plug in the charger again when it has shutdown it may show totally different percentage than last time but also dies as soon as I plug off the charger.
First time it could be like 12% but immediately after shutdown suddenly 71% etc.
Also when I try to fully charge battery it often jumps from around 70%-80% to 100% and while discharging it can suddenly drop from around 45% to 1%.
I have tried many things like wiping batt stats and fully charge from empty to full with power off/on, restart after full and charge again, leaved it screen on to slowly kill the batt etc.
So is that batt just badly worn after many years or is that "battery information file etc" somehow messed up that it can still be fixed/calibrated?
Ouh, and my current rom is AICP 12.1 (Nougat 7.1.1) if it matters.
Thanks