Database Users

Batery

If I left mah phone charging alln8 ....will it hv bad effects on my phone
Sent from my HTC Wildfire using XDA App

no, when it is charged 100%, it stops charging.

Frequently charging overnight will decrease the battery life . It will be long term effect.
Sent from my HTC Wildfire using XDA App

Yes, it will. Charge only when the battery is low, and remove from the charger as soon as poss after charging is done.

Hmmm.. Iam charging always by leaving the phone connected to the charger for the night and I think it doesnt make any difference. My battery holds about 2 days, with wifi on, 1hour of talking and using communicator, so it isnt so bad.
Sent from my HTC Wildfire using XDA App

Battery not showing 100% charged

So I have noticed that the battery on the tab does not show fully 100% charged. Every time I charge the tab overnight and I bring up the notification bar the battery only shows 99% charged, this is as soon as I unplug the charger. The tab can not loose 1% charge in the second it takes to disconnect it. I have noticed that this also happens with the original tab and no one could figure out why. What is the deal with this?
Sent from my GT-P6800 using xda premium

Yeah, I've noticed as well, but dont care too much
Sent from my GT-P6800 using Tapatalk

Because as soon as it loses 1/1000th of a percent, it is no longer 100% charged. So it shows 99%. That's just the way it is.

The info you so desire can be found somewhere here

Masterface7 said:
The info you so desire can be found somewhere here
Click to expand...
Click to collapse
So its common and not an issue but still annoying nonetheless
Sent from my GT-P6800 using xda premium

And I thought it was battery drain

After flashing Ics my battery couldn't seem to stay high so one day, I took the liberty of finishing the battery and...
THIS IS THE PURFECT EXAMPLE OF WROMG BATTERY INFO C:
Sent from my GT-I9000 using Tapatalk 2

LOL XD
This pic is just soooooo funny. I have no clue why but looking at that makes me laugh XD
very very wrong battery readings.....

happens lots of times after flashing.....weirdest thing that was happening to me was battery rapidly falling from 50 to 30% and than slowly growing to 40%.....
Sent from my GT-I9300 using xda app-developers app

what kernel are you using? if it the devilkernel in the advanced options do wipe battery stats
Sent from my GT-I9000 using xda premium

Lol
Sometimes battery stats behave strange
Sent from my GT-i9001 using xda premium

gaspernemec said:
happens lots of times after flashing.....weirdest thing that was happening to me was battery rapidly falling from 50 to 30% and than slowly growing to 40%.....
Sent from my GT-I9300 using xda app-developers app
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Click to collapse
Yes, I have to agree. This has also happened to me. I have actually had this happened when I turned my phone off one day. Before turning it off it had 60% battery, after a minute I turned it on and it said 20% battery. Also, has it happened to you that you charge it leave a couple of hours and when you unplug it rapidly falls to 70% or less? LOL! But it is nothing a full charge and batterystats.bin wipe wont fix.

Marcxd2214 said:
what kernel are you using? if it the devilkernel in the advanced options do wipe battery stats
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
Wiping battery starts has nothing to do with reported battery percentage. Similar results can be obtained by setting your phone face up on the coffee table, watching any random show on tv, and doing Zumba for 30 minutes. In other words... none.
Battery stats, which is only a list of the apps that have put a demand on the battery, is already cleared each and every time the os is rebooted
Sent from my Galaxy Nexus using Tapatalk 2

Strange

Yea, it happen to mine too after ICS 4.0.3 upgrade, does anyone can help?
Sent from my GT-I9100 using xda app-developers app

jessietwf said:
Yea, it happen to mine too after ICS 4.0.3 upgrade, does anyone can help?
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
This is what I have read on the XDA forums and it has worked for me.
Completely charge your phone to 100% (Full battery charge) without unplugging. Once it is charged, without unplugging it, reboot to recovery and wipe battery stats in the ADVANCED section. As soon as your wipe it, very quickly unplug the phone. (as fast as possible). Once you do this, reboot your phone and completely drain it to until it turns off and you cannot turn it back on unless is plugged. Once it is drained charge it completely full withot unpluggin it or turning it on.(Best time to do this is at night, since you are probably not going to use it while you sleep). After that just use it daily. You have to give it a couple of days so the battery syncs up. Hope I helped out!

Supermannypr said:
This is what I have read on the XDA forums and it has worked for me.
Completely charge your phone to 100% (Full battery charge) without unplugging. Once it is charged, without unplugging it, reboot to recovery and wipe battery stats in the ADVANCED section. As soon as your wipe it, very quickly unplug the phone. (as fast as possible). Once you do this, reboot your phone and completely drain it to until it turns off and you cannot turn it back on unless is plugged. Once it is drained charge it completely full withot unpluggin it or turning it on.(Best time to do this is at night, since you are probably not going to use it while you sleep). After that just use it daily. You have to give it a couple of days so the battery syncs up. Hope I helped out!
Click to expand...
Click to collapse
No offense, but what you have read is incorrect and is rooted in a misunderstanding about how the os and li-ion batteries work.
1. Wiping battery stats does nothing pertaining to charge indication. The file cleared is an already blank file that lists nothing more than a list of the apps that have consumed power. This file is cleared by the is on every reboot already.
2. Completely draining the battery shortens its serviceable life.
Any "results" that are seen by doing the above are merely attributable to the placebo effect.
Sent from my Galaxy Nexus using Tapatalk 2

Battery Draining While Phone is Off

I just got my nexus 4.
Last night I charged the phone completely, disconnected if from charger and turned the phone off.
This morning when I turned it on the battery was drained 15% down to 75%
Does anyone else have this problem?
Defect with phone?
Thanks for help.

You have to let the battery settle and let the battery stats calibrate. The % that you had after rebooting is what you really have. The first time it wadjt showing the right amount.
Sent from my Nexus 4 using xda premium

android88 said:
You have to let the battery settle and let the battery stats calibrate. The % that you had after rebooting is what you really have. The first time it wadjt showing the right amount.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
He said he turned his phone off...
I don't see how it can lose 15% if it is completely shut off. That's weird.
Sent from my SGH-T999 using xda app-developers app

Crisisx1 said:
He said he turned his phone off...
I don't see how it can lose 15% if it is completely shut off. That's weird.
Sent from my SGH-T999 using xda app-developers app
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Click to collapse
Then when he turned it on, he "lost" 15%. Like I said in my post, what it said before he turned it off was wrong. He didn't really lose 15%. It was just displaying the wrong thing.
Sent from my Nexus 4 using xda premium

You might have some apps running in the background that is preventing your device from going to deep sleep to conserve power. Check what's running in the background when your phone is off. You can use better battery stats app to check what's consuming your battery level.

Are your running a custom kernel? I've heard of a few cases with kernels where even though the phone is sleep and screen off just touching the screen will cause battery drain.
Sent from my Nexus 4 using xda app-developers app

I'm guessing you either meant it was at 85% or drained 25% down to 75
Either way this is common on a lot of phones now due to the way the battery gauge works. When you turn your phone off then on it doesn't always remember where it was so gives a value and then if it's under where it should be it soon recalculates and can either starts going up or stays on the same value for a long time. This has happened on both my old SGS2 and also my N4 for example this morning while my phone was being drained by the FB app keeping GPS on, I turned off location access and then restarted my phone which dropped a few extra % and then sat for a good few hours at that % even though I used my phone.
Moral to the story is don't always take what you see as true, give it time to settle and see how it goes over a few charging cycles.

N910C: Powers On only when charger connected

My phone doesn't power on unless I connect it to a charger. As soon as I unplug the charger it shuts down. Without a charger it gets stuck in boot loop. The phone had no issues for a year. It suddenly started acting funny this morning.

Are you running a custom ROM on your device?

No. I have stock rom. I just factory reset my phone in recovery mode.
Sent from my SM-N9005 using XDA Free mobile app

pavitar said:
My phone doesn't power on unless I connect it to a charger. As soon as I unplug the charger it shuts down. Without a charger it gets stuck in boot loop. The phone had no issues for a year. It suddenly started acting funny this morning.
Click to expand...
Click to collapse
Have you replaced the battery yet?
Sent from my SM-N910T using XDA Free mobile app

Repacing the battery solved my issue. But I fail to understand what caused my battery to go bad? I have never left it plugged in for more than the required time as it already has a fast charger.
Sent from my SM-N9005 using XDA Free mobile app

pavitar said:
Repacing the battery solved my issue. But I fail to understand what caused my battery to go bad? I have never left it plugged in for more than the required time as it already has a fast charger.
Sent from my SM-N9005 using XDA Free mobile app
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Click to collapse
They go bad over time. Most li ion are only good for 600-1000 charges and then they start to fail. Some fail catastrophically. I leave mine plugged in overnight every night, use fast charge, wireless charge with an adapter, leave it in the hot sun and in the freezing cold - basically really hard on them. I just plan to replace them on a 6 month or so cycle. That's why I don't like non replaceable batteries. Had that on my nexus 5 and it died a slow death.
Sent from my SM-N910T using XDA Free mobile app