Sudden and extreme batterydrain, from 30% to zero instantly - Nexus 6P Q&A, Help & Troubleshooting

Hi guys
Whats causing this batterydrain?
I've had three occations where the battery goes from roughly 30% to none in an instant.
Today I was hiking in the mountains and taking pictures when suddenly the battery dropped once again (third time in a row and this week) and be damned I didn't get to capture a single photo on the top as it died halfways.
Was on Nitrogen rom (latest build may 28th) where I discovered the problem. Made a clean install of the latest Pure Nexes build, same story..
Battery says 1% when I try to turn on the phone after it shuts down and then it shuts down again.
Chargeing it starts from 1.2.3.4.5.. and so on.

bias_hjorth said:
Hi guys
Whats causing this batterydrain?
I've had three occations where the battery goes from roughly 30% to none in an instant.
Today I was hiking in the mountains and taking pictures when suddenly the battery dropped once again (third time in a row and this week) and be damned I didn't get to capture a single photo on the top as it died halfways.
Was on Nitrogen rom (latest build may 28th) where I discovered the problem. Made a clean install of the latest Pure Nexes build, same story..
Battery says 1% when I try to turn on the phone after it shuts down and then it shuts down again.
Chargeing it starts from 1.2.3.4.5.. and so on.
Click to expand...
Click to collapse
https://forum.xda-developers.com/ne...6p-randomly-shutting-50-youre-t3522911/page81
This entire thread is about your exact issue.

bias_hjorth said:
Hi guys ...Whats causing this batterydrain?
Click to expand...
Click to collapse
Long story short, your battery is bad and in need of replacement. If you want to keep the phone, you need a new battery.

Yeah, pretty much no matter what I do this is the result...daily reboots help (kinda) and keeping high accuracy off and GPS only for location services...

Either replace the battery yourself (if you're brave) or call Google and see if they will send you a refurbished device with a better battery.

Related

Battery problems

I have the T8585 HD2, recently ive been having troubles with the battery...
I was getting intermittent battery drain for no apparent reason, the back of the phone would get very hot. Searching I found that this had something to do with the SD card not being formatted properly, did this and havent had this same issue since.
Last night I charged the phone while on my PC, was approximately 80%. I wake up this morning and the phone is dead, wont turn on. So i plug it in to charge again and then it starts to do the soft reset loop thing, I just left it go for about 6 or 7 loops and then it seemed to settle. I look at the battery capacity and its 0%.
This explains why it was dead, but why the hell is the battery draining to nothing over night? I did not notice it getting hot last night and it was dead cold this morning. Battery terminals are not bent as some others have suggested as a cause for this.
I really like the HD2 but this battery thing on top of the poor capacity for the this type of phone is really starting to disappoint.
I have not messed with ROMs yet, so its running the following that i got with the phone...
ROM 1.66.707.1 (76641) WWE
Radio 2.06.51.07
Any ideas on this would be helpful!!
Same phone, same software
I have exactly same phone & software, I upgraded rom to this 1. But have had no problems with phone at all. Few soft resets at 1st, but then started deleteing messages, shutting down programs in background, no problems since. Hope you get figured out,,
I'm having the exact same problem. I've had the phone since November and, although the battery doesn't last like it used to, since about 2 days ago the phone has gone haywire!
I haven't installed any new apps or used the phone any differently than usual but, after getting readings of between 15 - 20mA in standby (with Battery Guard) I'm getting on average 490mA now in standby! Crazy! The back of the phone is getting so hot that I'm actually worried that it might do the phone damage and, like the OP, I'll go to bed with a full charge and wake up with the phone so dead that I have to pull the battery before I can start to recharge.
I've removed some of the PDF files and other things that might be causing slowdown etc due to but there is definitely a problem. Does anyone have any ideas of what kind of things I should look for that could be causing this before I contact the insurance guys for a replacement?
Thanks in advance
Im having a similar problem with my HTC raphael with WiMo 6.5 Roms didnt tried if the problem exists in 6.1.
My phone is fine today, was 100% last night, 95% this morning. Im starting to think this is a software issue not hardware due to the randomness....
richo27 said:
...... Im starting to think this is a software issue not hardware due to the randomness....
Click to expand...
Click to collapse
funny you put it this way.... its actually the other way around.... nevertheless i understand what u mean (off-topic, just couldn't resist ;-) )
when the power usage jumps from 20ma to 490ma and gets very hot the battery has started to fail - don't be surprised their qualty is hit or miss. I'm on the T8585 HD2 (1.66 rom) since November and a few weeks ago the battery would get hot in standby and battery life dropped by half. I popped in a spare battery and problem instantly went away. I've since bought a 1,300 mha battery from Mugen, phone runs great again.
Hi. Had a similar thing with the battery drain, but the last few night I have put the phone on charge as normal and in the morning I have Nealy dropped the phone because of how hot the back was. Any ideas?
Happened again today, fully charged last night, 0% this morning. Very unhappy about this, this is a serious reliability issue that a $700 phone shouldn't have.
I would suggest checking your task managers processes, I had a process - Filesys.exe that was using 98% of my processor for long periods of time and absolutely eating battery life.
Yeah i have installed battlog to see if that will shed any light on the problem...
Did u try hard-resetting ur device?
no, im trying to avoid that at this stage, I want to find the source of the problem.
Had the same issue. Phone worked very well for a few months and then this battery drain + overheating issue started all of a sudden. Tried hard reset, disabled 3g and problem continued. Finally, got my phone replaced with great difficulty and problem solved!
Anyway, check the signal strength. One of the issues could be the phone trying to connect repeatedly when the signal is weak. You can also try to disable data connections to see if that causes the problem (Disable all autoupdates like email, twitter, weather and so on).

[Q] [Help] My battery is draining too fast, some soft problem ?

I bought this Hero off eBay, and it was dodgy since the begining.
The phone had cyanogen, and was restarting itself occasionally.
So i wiped it, installed 2.1 and it got fixed, but now i have a problem with battery drainage.
Its insance, 10minutes-10% im pretty sure its not supposed to be like that. with or without wifi/3d turned on, its just riddiculous.
I borrowed battery from a friend, and that didint make any change, i installed latest update from the autoupdate in the phone and still its bad. I read somewhere here that its faulty email app that keeps on trying to sync and drains battery, how do i fix that ?
I did a full wipe, cleared cache and everything back to factory settings, with no apps installed it goes from 100% to 0% in an hour.
I downloaded 2.1 from some android forum, as i was unable to find one here (there are only links to 1.5 on the xda.wiki WHY?)
If you can point me to a proper 2.1 (or higher?) software to download that doesnt do this crazy **** i'll be happy as infant on crack.
Please help, here is my software information:
Firmware: 2.1-update1
Baseband version: 63.18.55.06JU_6.35.09.26
Kernel version: 2.6.29-063c4d24
Build number: 3.32.405.2 CL191507release-keys
Software number: 3.32.405
Browser version: WebKit 3.1
Try calibrating your battery it gave me a huge boost on my hero... went from getting 16hours day.. to about 30hours on a single charge!!
Every time you flash a new ROM you need to calibrate your battery. The battery meter in the OS (Android in this case) is generated based on the battery stats file.
Battery stats is erased when you flash a new ROM.
Easiest method of battery calibration when you're intending on flashing a ROM:
Ensure battery is fully charged according to the OS. Switch phone off, unplug charger and plug back in. Once light is green, leave charging for another 30 minutes (light goes green at approx 95% charge).
Switch on, flash ROM. Allow first boot to complete.
Shut phone off. Disconnect charger. Remove battery. Replace battery. Place on charge, light green, leave charging another 30 minutes, yadda yadda. Switch phone on, boot immediately to recovery. Wipe battery stats.
Boot phone up. Now would be a good time to install JuicePlotter. Use as normal. Do not charge, let the battery run down completely. When the phone shuts itself off, power it back on. Repeat process until it won't switch on anymore.
Remove the battery. Put the battery back. Turn the phone on. Repeat until it won't turn on anymore.
Now charge the battery on the mains to 100% while the phone is off, keep charging for 30 minutes after light goes green. Power on. Voila, fully calibrated battery.
The last part, run until completely dead and charge only needs to be done once in a while (this is calibrating the battery innards, not the battery stats)
Click to expand...
Click to collapse
hah, yea thats what i accidentally figured. phone was switching off, but when i powered it back on it had 30%.. and it was like that 3 or 4 times.
I ran it down completely and now am charging it till max, we'll see what happens. at worst i'lkl start your process from the beginning thx !
I diidnt know you had to do that. i've been playing with my G1 and not even once i had to calibrate that.. maybe i should
How'd it go? Any improvement on battery life?
it diidnt help I did what you quoted step by step and its still running down the battery like crazy :/ what else can i do ? im thinking of switching to 1.5 but thats just not progressive and my friends phone is running fine on 2.1, with the same battery even.
Edit: i've installed task killer and killed all the mail checking apps.. hope that is the problem
Edit2: it didint help at all, in 5 minutes i lost 15% fcuking hell !
I just switched to 1.5 and its still happening ! I using a different battery and its just as bad... why is this happening to me
ill try second to latest radio from xda wiki.. im running out of ideas,what else can i do ?
That really wierd... its not the battery if you have tried using different ones. Its not the ROM if u have changed it.
Have you tried disabling auto-updates? and auto-checks for emails. Which email client do you have? you should find the option to "sync-never" in the app settings.
Buying it from ebay is kinda ominous though.. was it described as faulty? perhaps you could contact the seller and request a refund is all else fails?
you can try using setcpu to underclock the cpu.
i have similar situation as you. before going to bed around 11pm, it showed 50% left, turned on airplane mode, then in the morning around 6am, phone was powered off.
now it has been 2 days, still have 20% left.
Logan3D said:
I bought this Hero off eBay, and it was dodgy since the begining.
The phone had cyanogen, and was restarting itself occasionally.
So i wiped it, installed 2.1 and it got fixed, but now i have a problem with battery drainage.
Its insance, 10minutes-10% im pretty sure its not supposed to be like that. with or without wifi/3d turned on, its just riddiculous.
I borrowed battery from a friend, and that didint make any change, i installed latest update from the autoupdate in the phone and still its bad. I read somewhere here that its faulty email app that keeps on trying to sync and drains battery, how do i fix that ?
...
Click to expand...
Click to collapse
Did you ever take into consideration that some part of the hardware might be damaged?
Devices that got water damaged, sometimes show weird symptoms as well:
- They still boot up and seem to work well from the first sight
- The battery drains very quickly
- Some of the peripherals are not working stable or not starting up anymore (e.g. wifi, bt, gps)
- Other crazy things might happen as well (e.g. random reboots, backlight flicker, etc.)
So you might have a look at the mainboard. Red stickers indicate water damage!
Regards,
scholbert
Yea but if it were damaged would it show 50% battery after restarting thinking it had reached 5% ? i dont have the tools or will to unscrew it.
i paid 100 pounds fo it, the normal price of a used hero, but the auction said "phone restarts for no reason" and they do not accept returns, so im propably screwed :I
I had an old blackberry 8300 curve, i had it in the bathroom while i was showering, got too moist, turned the detection pads red but phone seemed to work fine after i dried it out. But the battery went to crap progressively in the manner. I would charge to 100%, take it off the charger and maybe an hour it would say less than 10%, do a battery pull and it would go back up to maybe 80% and last maybr another hour and keep doing that till it would normally drain on top od the numerous reboots i would be doing until eventually it would just drain and die.
Sent from my HTC Desire using XDA App
Can dead pixels cause this ? i have like three.. but then again why would it show 50% after restarting from 5%..
the thing is its not draining the battery, just registering it wrong
Any updates on this? Any resolution?
shinji21 said:
Any updates on this? Any resolution?
Click to expand...
Click to collapse
sorry mate i have tried everything unsuccessfully and returned the phone to the seller.. dont tell me you bought it ? (london)
No, but i have a samsung galaxy tab and experience similar symtoms. It does not bother me too much, the battery life is still great. Just the percentage is off and i need to restart from time to time.
I read similar complaint from droid x forum too.

[Q] battery drain while switched off

I noticed this a couple of days ago: I was in a place with no 3g nor wifi so I decided to switch O7 off. In the evening I switched it on and battery was empty.
I tried again yesterday with the same results. What"s using this phone while it's off?
Are you sure it is actually flat?
My battery has a problem, if i turn the phone off and then on it will show that my battery is empty and want to turn on battery saver. If i keep turning it off and on and mess with the battery contacts it reads properly.
Just a thought....
This is because the battery is cold, let it warm up and it will display the correct level
ballajalla said:
This is because the battery is cold, let it warm up and it will display the correct level
Click to expand...
Click to collapse
This happens after being on for days, it's not to do with temperature.
Freypal said:
Are you sure it is actually flat?
My battery has a problem, if i turn the phone off and then on it will show that my battery is empty and want to turn on battery saver. If i keep turning it off and on and mess with the battery contacts it reads properly.
Just a thought....
Click to expand...
Click to collapse
It also happens to me. Not usually but once every 1/2 weeks. I've been looking for a solution and the only one i found is switching off and on again until the battery level is ok. However i have to say that this has been happening since i installed 7740 update, so maybe the problem is that.
not actually drains...
I think the battery did not darain.
It is just the battery level is not displayed correctly; I had the same (or similar) problem. I switched off the phone while the battery was at 80% and the next morning when I switched it on I got the message "the battery is low..." and the wrong battery level displayed.
I kept it on for hours and it worked nicely; I noticed the battery info displayed 1% of residual charge and 7 hours of expected workng time...something weird
Suddenly after hours of usage the battery icon started to work properly.
one2one69 said:
I think the battery did not darain.
It is just the battery level is not displayed correctly; I had the same (or similar) problem. I switched off the phone while the battery was at 80% and the next morning when I switched it on I got the message "the battery is low..." and the wrong battery level displayed.
I kept it on for hours and it worked nicely; I noticed the battery info displayed 1% of residual charge and 7 hours of expected workng time...something weird
Suddenly after hours of usage the battery icon started to work properly.
Click to expand...
Click to collapse
Exactly the same as me. I'm on my 2nd Omnia handset now (warranty replacement) and this one does the same so I assume it's the battery that's faulty.
If you leave it on long enough the battery meter slowly increases over time until it reaches the true value.
Just installed 8107 upgrade via cab; let's see if problem have been noticed before and solved now
I noticed this problem also. After the mangu upgrade it is not there any more.
For me it seems that th eproblem laid in the firmware..
funny, I'm not the unique
Today I've tried to make an hard reset to see if the problem would have been solved. I'm on Mango 7740, tonight I'll try to switch off the mobile phone after charging.
djadry said:
funny, I'm not the unique
Today I've tried to make an hard reset to see if the problem would have been solved. I'm on Mango 7740, tonight I'll try to switch off the mobile phone after charging.
Click to expand...
Click to collapse
I did a hard reset, OS update and then a handset replacement and the problem is still there.
I'm convinced it's a fault with the actual battery.
Ok, I yesterday evening I switched of the smartphone for some hours... Then I turned it on and I saw the"popup" which told me the battery was low.
I left the device on, with 3g on for all the night and this morning I found the battery level as it was before yesterday evening
I confirm the battery do not drains when the smartphone is turned off!
Sent from my OMNIA7 using XDA Windows Phone 7 App
As I already said, this is because the battery gets cold when you switch off your phone, and it then appear drained. After heating up again it will recover it's charge.

Mate 9 Random Reboots and wrong battery level

Hello all,
Recently, since about a week, i've been experiencing sudden random reboots. Often when starting apps (especially the Camera is a real culprit here, but also Google Photo's). When entering pin-code all seems fine again. and sometimes i can just use the camera like normal. But sometimes it keeps rebooting and the only way to stop it is to quickly turn off battery saver (seems a solution till now for a while)
Searching online didn't really help much, as i found a few people with the same issue end of march also on Oreo update, but no solution yet.
Also the battery indicator seems off. it often drains reaallly slow (85% at the end of the day) and then at a random percentage (like 60%) just turns off. When turning it back on it only has 3%. So it could be battery related.
What i tried:
- Let the phone drain completely, then recharge to 100% overnight.
- Remove all apps installed in the last few weeks + all unnecessary apps.
I don't want to do a factory reset, because our IT then has to set up the Authenticator again which is a pain for them (and i already had them do that a few weeks ago :angel: )
Any tips on how to troubleshoot some more or more people seeing this behaviour?
tharealmb said:
Hello all,
Recently, since about a week, i've been experiencing sudden random reboots. Often when starting apps (especially the Camera is a real culprit here, but also Google Photo's). When entering pin-code all seems fine again. and sometimes i can just use the camera like normal. But sometimes it keeps rebooting and the only way to stop it is to quickly turn off battery saver (seems a solution till now for a while)
Searching online didn't really help much, as i found a few people with the same issue end of march also on Oreo update, but no solution yet.
Also the battery indicator seems off. it often drains reaallly slow (85% at the end of the day) and then at a random percentage (like 60%) just turns off. When turning it back on it only has 3%. So it could be battery related.
What i tried:
- Let the phone drain completely, then recharge to 100% overnight.
- Remove all apps installed in the last few weeks + all unnecessary apps.
I don't want to do a factory reset, because our IT then has to set up the Authenticator again which is a pain for them (and i already had them do that a few weeks ago :angel: )
Any tips on how to troubleshoot some more or more people seeing this behaviour?
Click to expand...
Click to collapse
That sounds kind of like a battery that's failing.
What's the age of the phone? And did you primarily use Huawei's supercharge brick or other methods / chargers? (I ask the second, because charging at 4.5A can be bad for the battery on a regular basis.)
I'd load up something like Ampere and watch the charge / discharge rates. I'd expect a normal discharge rate around 150-350mA, but it depends a lot on what you're doing. (GPS and moderate graphics will keep it up in the 800mA-1A discharge range, the rear camera with just the viewfinder seems to push 1.2A current draw.)
I'll give Ampère a try. I used both chargers but the phone is just over a year old. Nothing to warrant a bad battery already.
Besides that, recent discoveries lead to believe slow charging could actually cause more heat and be worse for battery. But again: it's a bit soon for something like that I think. I'll try Ampère first. But i doubt that's the issue.
I've noticed my phone gets toasty when fast charging. If it's hooked up to any charger other than Huawei's, it tends to stay cool.
And it happened again. More then 50 percent and then it turned off and only had 3 percent
Dead battery I guess?
tharealmb said:
And it happened again. More then 50 percent and then it turned off and only had 3 percent
Dead battery I guess?
Click to expand...
Click to collapse
That's what it looks like to me.
Fortunately, the batteries aren't that expensive to find (Google popped up a bunch for <$20), and actually getting in isn't too difficult either, if you want to swap it yourself.
Just to close this topic properly:
The issue got worse, but i was on holiday. Ordered a new battery with a toolkit to replace the battery for 30 euro's.
When i got back from my holiday i notices the battery had already pushed the screen loose. So getting the screen off was easy. Swapped the battery in just 5 minutes and now everything is working great again. The screen used to have some bright spots and those are gone aswell. I guess it was a giveaway of things to come.
Thanks for the help!

Phone shuts down and refused to start unless plugged in.... a non-hardware issue?

I've seen a couple threads that look like this issue. I have replaced my battery and I think it's good. I get great life and performance out of it.
This has happened a hand full of times. It started with the stock camera app. I double tapped power to launch the camera and it turned the screen on for a second then shut down. It happened a few more times when I was using the camera (launching, taking a photo, switching to front camera... ). Since I've had issues with the camera app I've wiped all internal storage and reloaded the ROM and apps. Just yesterday it happened again when I was loading the MyRadar app.
All times were with plenty of battery left, usually more than half. Plugging it in for a second will let it start and operate normally again with a good and same amount of battery left. I've used a couple benchmark apps to stress the phone to see if it was heat or power related, but no issues. I've manually tried running through a ton of apps to stress it (including the ones that gave issues) and still no problems.
Is there a chance this isn't a hardware issue? Maybe an issue with the ROM, Gapps, radio, vendor, etc... ?
ABC ROM from 06/24
Gapps from around the same date
Rooted with Magisk
Kernel Adiutor - only DT2W enabled
I know you said you replaced you battery.... But, it is typical symptoms of a Nexus 6P battery dying. I had the same kind of issues (shutdown when starting the camera, for example). Issues were worse in cold weather. We visited Iceland and i wasn't able to use my phone for anything else than GPS in the car while driving (connected).
All my issues went away when i replaced the battery.
Not saying this IS your issue, but it sure does feel familiar.
EDIT: Added a screenshot showing a 71% shutdown.
nlz242 said:
I know you said you replaced you battery.... But, it is typical symptoms of a Nexus 6P battery dying. I had the same kind of issues (shutdown when starting the camera, for example). Issues were worse in cold weather. We visited Iceland and i wasn't able to use my phone for anything else than GPS in the car while driving (connected).
All my issues went away when i replaced the battery.
Not saying this IS your issue, but it sure does feel familiar.
EDIT: Added a screenshot showing a 71% shutdown.
Click to expand...
Click to collapse
Do you have trouble starting the phone again once it shut down from a bad battery? I'm not denying it's a posibility, but I was under the impression that if a phone died from a bad battery it would either restart itself or was able to power on normally. Or, maybe my replacement battery has faulty circuitry of some sort.
Schiben said:
Do you have trouble starting the phone again once it shut down from a bad battery? I'm not denying it's a posibility, but I was under the impression that if a phone died from a bad battery it would either restart itself or was able to power on normally. Or, maybe my replacement battery has faulty circuitry of some sort.
Click to expand...
Click to collapse
Yes, i had issues starting the phone after those shutdown, I 100% had to connect it, wouldn't start otherwise. Even that time when it shutdown at 71%, i had to plug it to get it restart.
Super annoying when you are on vacation to a foreign country... Wanted to throw the damn thing in a volcano! haha
Since i changed the battery i became super an*l about it, installed AccuBattery and got it set to warn me at 70%. I only do 100% charges when i know i'm gonna need that autonomy. So far (a little more than a year later) i'm good, no issues.
nlz242 said:
I know you said you replaced you battery.... But, it is typical symptoms of a Nexus 6P battery dying. I had the same kind of issues (shutdown when starting the camera, for example). Issues were worse in cold weather. We visited Iceland and i wasn't able to use my phone for anything else than GPS in the car while driving (connected).
All my issues went away when i replaced the battery.
Not saying this IS your issue, but it sure does feel familiar.
EDIT: Added a screenshot showing a 71% shutdown.
Click to expand...
Click to collapse
nlz242 said:
Yes, i had issues starting the phone after those shutdown, I 100% had to connect it, wouldn't start otherwise. Even that time when it shutdown at 71%, i had to plug it to get it restart.
Super annoying when you are on vacation to a foreign country... Wanted to throw the damn thing in a volcano! haha
Since i changed the battery i became super an*l about it, installed AccuBattery and got it set to warn me at 70%. I only do 100% charges when i know i'm gonna need that autonomy. So far (a little more than a year later) i'm good, no issues.
Click to expand...
Click to collapse
Well, damn.... that's depressing. Maybe I'll get another battery if this keeps happaning.
Thanks for the info!

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