Develop Bugs

Worse battery life with KK

Worst fears realised.
The Kit Kat update has delivered drastically worse battery life.
Could often work with 10% per 45 min - 1 hr screen time before on WIFI, that has now gone out of the window.
1 hr 44 min screen time with 68% left now.
That is quite a bit worse I would say.
Anyone else feel the same?
I would rollback, but the camera improvements are just so much better.

Arthur Hucksake said:
Worst fears realised.
The Kit Kat update has delivered drastically worse battery life.
Could often work with 10% per 45 min - 1 hr screen time before on WIFI, that has now gone out of the window.
1 hr 44 min screen time with 68% left now.
That is quite a bit worse I would say.
Anyone else feel the same?
I would rollback, but the camera improvements are just so much better.
Click to expand...
Click to collapse
I had about 5 hr screen time and almost 2 days of usage. I am using stamina and greenify though since I don't need emails and notifications pushed, I just manually refresh it.

Nope, I just managed 7.5 hours OST on my last charge on WiFi without Stamina Mode, so quite a bit better for me than JB where 5/6 was more usual. Standby power is also noticeably better, averaging ~0.4%/h.
Sadly the KitKat changes make most battery stat apps useless without root now, or I'd suggest you run one to see what's up on your end.

ghtop said:
Nope, I just managed 7.5 hours OST on my last charge on WiFi without Stamina Mode, so quite a bit better for me than JB where 5/6 was more usual. Standby power is also noticeably better, averaging ~0.4%/h.
Sadly the KitKat changes make most battery stat apps useless without root now, or I'd suggest you run one to see what's up on your end.
Click to expand...
Click to collapse
Cant find anything that stands out. Going to drain and do a charge from fresh.

Did anyone try to calibrate the battery after flashing?
Calibrating battery gives exact battery reading.

There is no real calibration in android and for everybody pls alow 3-4 full charges before reporting your battery life on kitkat(same when flashing new kernel)

same here.
Done full drain but no change. moreover the phone gets heated quickly..

getvaisakh said:
same here.
Done full drain but no change. moreover the phone gets heated quickly..
Click to expand...
Click to collapse
This is obviously a sign of some rogue process running intensively (compare performance after booting in safe mode to confirm). You should be able to figure out pretty easily which it is from the basic battery stats page, sadly no partial wakeleock listings anymore on non-rooted phones though.

ghtop said:
This is obviously a sign of some rogue process running intensively
Click to expand...
Click to collapse
I didn't installed any apps as I bought phone day before yesterday Then the possibility is bug in Sony's new firmware.
compare performance after booting in safe mode to confirm
Click to expand...
Click to collapse
How to boot into safe mode?? sorry I am new here and this is my first android ph )
I have done factory reset>>installed 4.4.2 via PC companion>>full factory reset incl internal storage.. heating problem is somewhat solved.
But it gets heated up when connected to charger..which on JB doesn't happened!! strange..
Draining seems to be normal but takes too much time to charge..

I got a great battery life on kitkat.
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Sent from my D5503 using Tapatalk

Glad to report that after a reboot and couple of charges I am back to where I was. The slow opening camera issue I had has also gone away.
Sent from my D5503 using XDA Premium 4 mobile app

[Q] Very strange battery behavior.

Hi all... first post, first problem with android... and hopefully a long time here in xda!
So I have the T320 (8.4 pro) and I have a strange problem with my battery. Is not only that it lasts no more than 4 hours (screen), the problem come by low and high battery %.
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By low, the table shuts down and after starting it again, it shows between 5 and 10% battery!!
Something similar happens by charging... it shows 90% and no change... and after a reboot it shows 100%.
Is my battery dying? Should I wipe and restart from zero? Cyanogen?
The speed how fast battery drains is also extreme compared to stand-by times... but I assume this is more or less a problem of this tablet.
Many thanks in advance!

parseval43 said:
Hi all... first post, first problem with android... and hopefully a long time here in xda!
So I have the T320 (8.4 pro) and I have a strange problem with my battery. Is not only that it lasts no more than 4 hours (screen), the problem come by low and high battery %.
By low, the table shuts down and after starting it again, it shows between 5 and 10% battery!!
Something similar happens by charging... it shows 90% and no change... and after a reboot it shows 100%.
Is my battery dying? Should I wipe and restart from zero? Cyanogen?
The speed how fast battery drains is also extreme compared to stand-by times... but I assume this is more or less a problem of this tablet.
Many thanks in advance!
Click to expand...
Click to collapse
Having similar issues. Found mine dead out of nowhere one day. Never had custom ROM on it. Did factory reset now it seems like it doesn't want to charge .... Charges VERY slowly if at all.
Sent from my SM-G900T using XDA Free mobile app

i have the same issue, dropped from 50 to 15 all of a sudden , will try calibration , anyone else noticed this ?i picked up mine used so unsure whats the issue

i found better battery life after i did a factory reset. i bought it new and set it up and since then had 1 Sammy update but last week i reset it and it clearly made a difference on my 10.1. yesterday i had 2 hours screen time and on battery for 2 day and some hours and had 60% left.

Add mine to the list....seems to be doing the same thing here. Haven't been able to sort it out yet.

Took the back off mine tonight and reseated the battery connector. Then charged like below. First to time in a while it charged up like this.

can you post a pic of videos of how to pry it open ? hopefully simple with a prying tool

cletusarrarr said:
can you post a pic of videos of how to pry it open ? hopefully simple with a prying tool
Click to expand...
Click to collapse
I just very carefully went around it with one of those guitar like plastic openers i have laying around from the many tablet/phone repair kits i have used. I probably rebooted it 5 times before i finally popped it apart... thing just did not want to charge. This was the first time i saw it ramp up 1% at a time in a while. The other thing i noticed it was doing was jumping from ~70% to 100% instantly.... The graph showed it too. I didn't believe that was really happening.

some pics would help , is it between the screen and the metallic part or the back and the metallic part ?

cletusarrarr said:
some pics would help , is it between the screen and the metallic part or the back and the metallic part ?
Click to expand...
Click to collapse
No. The faux leather cover comes off.
This... http://forum.xda-developers.com/showthread.php?t=2710711
pro 8.4 Teardown

hasnt mentioned there how to open it tho

cletusarrarr said:
hasnt mentioned there how to open it tho
Click to expand...
Click to collapse
Yup... like i said.. guitar pick opener and gently popping the faux leather back off. Its not like removing an LCD from a phone.

cletusarrarr said:
hasnt mentioned there how to open it tho
Click to expand...
Click to collapse
Opened mine up because of the battery charging stalls and reseated my battery. I bought this tab 2 weeks ago used and this is the first time it has charged to 100 without me forcing it too! Its def worth doing if ur battery stalls!!

strive53 said:
Opened mine up because of the battery charging stalls and reseated my battery. I bought this tab 2 weeks ago used and this is the first time it has charged to 100 without me forcing it too! Its def worth doing if ur battery stalls!!
Click to expand...
Click to collapse
Mine has been really good now for days too...any hint of battery probs are gone!
I suspect an app did this too. I was on cm when it started...others were stock. Chrome or some other common Google app put our tabs in a funky state.

so... Did the 6 update fix the battery drain?

I haven't seen it since I got the update a few days ago... anyone else seen it since the update? *fingers crossed*

senectus said:
I haven't seen it since I got the update a few days ago... anyone else seen it since the update? *fingers crossed*
Click to expand...
Click to collapse
Well, I've left it overnight, airplane mode ON and Always on OFF. Drained 4%. Is this good?

Adikovec said:
Well, I've left it overnight, airplane mode ON and Always on OFF. Drained 4%. Is this good?
Click to expand...
Click to collapse
mines been on since 1630 yesterday, connected to phone and screen always on now at 58%

I can't break the habit of powering down when I put it on the charger and keeping it off until it's unplugged. Works everytime. I only had stock mm for a day then flashed alex6600s kernel.

Adikovec said:
Well, I've left it overnight, airplane mode ON and Always on OFF. Drained 4%. Is this good?
Click to expand...
Click to collapse
In this mode and on table it drain about 0.5% by hour.

I know I'm probably jinxing myself but I'm finding the battery is *much* better in this build!
Sent from my Nexus 6P using XDA-Developers mobile app

no battery drain so far
Since 4 days on MM....long way to go until we know for sure though...so far MM seems pretty stable...equal or improved over the previous one.

Quick update from M - 3rd day, 20% battery left. Thanks Sony

After update to MM I turned off gps, wifi and my watch not live more than day. It have about 5% power consumption per hour. What the problem is?

Havn't seen much change yet.
But even when the watch was om 5.1.1 it did good time. Two to four days between charging. Normal two days when using GPS for running every second day.
And so fare it behaves the same on 6.0.1.

No, it didn't. Not because it was 5.1.1's fault but it was app sync's fault.
I had only one battery drain on 6.0.1 - it was right after the very first setup. The same thing happened to me when I was setting up my watch the very first time while on 5.1.1.
On both versions, unpairing the watch, forgetting it in the app, resetting the watch and then, again, pairing it with the phone while plugged, letting it do its job during the sync process, not touching both the phone AND the watch for some time fixed the problem.
Battery life on 6.0.1 is very, very good. The watch lasts for about 3 days. Always On - ON, Gestures - ON, WiFi - ON... well, everything is on, even location.

romcio47 said:
No, it didn't. Not because it was 5.1.1's fault but it was app sync's fault.
I had only one battery drain on 6.0.1 - it was right after the very first setup. The same thing happened to me when I was setting up my watch the very first time while on 5.1.1.
On both versions, unpairing the watch, forgetting it in the app, resetting the watch and then, again, pairing it with the phone while plugged, letting it do its job during the sync process, not touching both the phone AND the watch for some time fixed the problem.
Battery life on 6.0.1 is very, very good. The watch lasts for about 3 days. Always On - ON, Gestures - ON, WiFi - ON... well, everything is on, even location.
Click to expand...
Click to collapse
exactly the same here, did the 6.0.1 update and battery down to 16% in less than 40 min.
Wiped everything, unpaired, did update again but now via PC companion, resetted everything again and now great battery life. 2x 20 min gps daily for bike ride and still 2 day battery life.

Battery curve in 6.0.1
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It drop to 10 after power ON the morning. When Power Off for the night it was at 46%
So no software issue (and never was software issue), just a deffective (deteriored) batt. I think there are faulty regulator charge circuit in SW3 and the battery overcharged. Just see how fast an SW3 can be charged, not normal charge process.
In general way, when a lithium batt drain faster after 50(40) % it mean batt is damaged.
I have normal drain from 50% to maybe 40%. Problem is after 40%.

So far I haven't suffered the random battery drain since the update.
Sent from my SM-N920T using Tapatalk

For me is seems to be fixed. But the app Wear Battery Stats stopped working. Hm, I don't need it anymore.

Battery discharging abnormally fast.

A few weeks ago i had this weird abnormally fast discharge got the phone at 2% battery for like 30 minites, then 3% battery. So i took this capture.
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Now, my phone discharges abnormally fast since yesterday
My phone is 100% stock 6.0, logd dissabled since months ago, same usage, very weird, so much frustation. From 20% to 2% in 20 minutes, wtf? .
Phone is 5 months old. H815P.
Help? Any tip, anything?
Sent from my LG-H815 using XDA-Developers mobile app

It's happening more or less the same on my H815. I've tried everything so far: plane mode or not, different roms stock or not, 5.1 and 6.0, dozens of factory resets, even a brand new battery, it's exactly the same everywhere. Phone will suck around 10% per hour even when freshly formated and untouched, even on plane mode. And any application informing of battery stats won't point at anything as the culprit, it's like the battery capacity is suddenly a 10% of what it should be but will still take 1:30h to fully charge. I haven't RMA'd it yet because mine has the bootloader unlocked but I might if it doesn't fix itself soon. What serial is yours? Mine is a 508.
Hopefully, living in Europe means they won't reject the warranty for an unlocked bootloader as it's obviously a hardware problem.

beje86 said:
It's happening more or less the same on my H815. I've tried everything so far: plane mode or not, different roms stock or not, 5.1 and 6.0, dozens of factory resets, even a brand new battery, it's exactly the same everywhere. Phone will suck around 10% per hour even when freshly formated and untouched, even on plane mode. And any application informing of battery stats won't point at anything as the culprit, it's like the battery capacity is suddenly a 10% of what it should be but will still take 1:30h to fully charge. I haven't RMA'd it yet because mine has the bootloader unlocked but I might if it doesn't fix itself soon. What serial is yours? Mine is a 508.
Hopefully, living in Europe means they won't reject the warranty for an unlocked bootloader as it's obviously a hardware problem.
Click to expand...
Click to collapse
http://forum.xda-developers.com/and...ttery-life-t3095884/post60429417#post60429417

Spoookie said:
http://forum.xda-developers.com/and...ttery-life-t3095884/post60429417#post60429417
Click to expand...
Click to collapse
Been there, done that. No matter if I'm using a freshly factory reset stock ROM with all radios activated or a fully modded, debloated, greenefied and amplified CM installation on plane mode. Battery will still deplete at 10% hour with no culprit in battery stats (top one will be Screen with something like 30 minutes on and 100mAh used)

beje86 said:
It's happening more or less the same on my H815. I've tried everything so far: plane mode or not, different roms stock or not, 5.1 and 6.0, dozens of factory resets, even a brand new battery, it's exactly the same everywhere. Phone will suck around 10% per hour even when freshly formated and untouched, even on plane mode. And any application informing of battery stats won't point at anything as the culprit, it's like the battery capacity is suddenly a 10% of what it should be but will still take 1:30h to fully charge. I haven't RMA'd it yet because mine has the bootloader unlocked but I might if it doesn't fix itself soon.
Click to expand...
Click to collapse
https://www.reddit.com/r/nexus5x/comments/3y8144/guide_finding_battery_issues_with_googles_battery

One Twelve said:
https://www.reddit.com/r/nexus5x/comments/3y8144/guide_finding_battery_issues_with_googles_battery
Click to expand...
Click to collapse
Thanks, I'll try. Even though Better Battery Stats does more or less the same and showed absolutely nothing (wakelocks et all) draining the battery.

That tool has a lot more granularity maybe it might reveal some more clues. Same goes for the OP.
let us know how it goes.

beje86 said:
Been there, done that. No matter if I'm using a freshly factory reset stock ROM with all radios activated or a fully modded, debloated, greenefied and amplified CM installation on plane mode. Battery will still deplete at 10% hour with no culprit in battery stats (top one will be Screen with something like 30 minutes on and 100mAh used)
Click to expand...
Click to collapse
CM you get what you get...try Genisys

Does the phone get warm while this is happening?
the way I see it, you either 1) have crappy battery, and phone is normal so doesn't suck down lots of electricity and doesn't get warm, or 2) have fine battery, and phone is acting weird and sucking down all your energy.
If you are situation 2), then you would feel the phone get very warm to use that much energy so fast. If your phone is cool during all this time, then it's not using much energy to be able to stay cool, so you know your battery is having a problem.
maybe try cutting a hole in your pocket and put your phone against your thigh to really feel whether it's too warm.

15% battery and phone is "dead"

Hi guys,
I have a problem with... When battery drops down to 15, my phone turns off, and 46 six aps are being optimized. I'm not alone with this problem, my friend with HTC... has the same. Any solutions?
And now "com.google.process.gapps has been stopped and i must do hard reset.
Help guys.

Do you have a custom rom?

ZpanicZ said:
Do you have a custom rom?
Click to expand...
Click to collapse
Oryginal

I have the same problem, and im on a custom ROM! So annoying

Yea me too. I guess it's my fault or something like this. Sometimes phone can handle 4%, sometimes it'll dead at 11% and so on.

woloss said:
Yea me too. I guess it's my fault or something like this. Sometimes phone can handle 4%, sometimes it'll dead at 11% and so on.
Click to expand...
Click to collapse
The battery meter isn't that accurate, its just an estimation based on the battery voltage versus how you use your phone (and the resulting "typical" battery drain). You shouldn't expect it to be accurate to the being within the 1-2 (or even 5) percent range. Shutting off at 4 to 11% is not unusual, and not surprising.
You shouldn't be draining your battery down that low on a regular basis. Its bad for long term battery life. Good rule of thumb for Li ion batteries is short and frequent charge cycles.
However, optimizing apps and/or google process stopped after a shutdown (due to low battery) is not normal. That's a different matter.

I have this problem, plus some of my settings get reset such as my wallpaper, ringtone, notification tone, boomsound (off to on), screen timeout, screen brightness, whatsapp (keeps asking me to chose my backup options and no messages come through until then). This has never happened before and I'm not sure why it's only happening now. I'm not purposely trying to drain the battery or anything, it's just that sometimes on the road I am unable to charge it and it'll just die out midway when previously, that extra 15% could've lasted me for another 30 minutes, just enough for me to reach my destination.

The same problem.. But the bigger problem for me, it's reseting my settings..

It is a terrible problem , I return to KitKat and my battery reaches 1% , and so normal ... I'll make a test with lollipop .

Yes, same problem! So glad someone made a thread for it. It's frustrating and happens literally every time.
Experienced on both the stock and a custom rom. Any one knows any fixes? Is it because of the 'battery life reduces over time' thing? My phone is 2 years old now

KAiA92 said:
The same problem.. But the bigger problem for me, it's reseting my settings..
Click to expand...
Click to collapse
That seems to be a problem with all htc ones (m7, m8, m9) as they get older, dont worry its normal :laugh:

ive been experiencing this for a while, clear dalvik cache and let android do the whole rebuilding thing at the start and you should be fine...as for the battery fix ive just learnt to live with it, 15% is the new 2%!!!

I'm on this problem since a lot of time, as i was one of the first in the community to report it.
Seems like an end-of-life issue for one m8 and htc one phones line.
In my case i had a camera and charge board issue too, so in rma htc changed them, and now the phone is charging and quick-charging like it must have to. But i have to be careful when near 15% of battery because using camera, flashlight or others power-expensive features instantly turns the phone off, causing a database mismatch on the next boot (for marshmallow) and consequently the loss of data.
If the instant-poweroff occurs during boot, there is a massive loss of data and a lot of force closes on the next boot.
Nothing to do here i think, sadly.

In kitkat and lollipop battery reach at 1% ...
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Sent from my HTC One_M8 using XDA-Developers mobile app

I have a fix for this as it happened to me and I tried a battery calibration app from the app store... I thought what your thinking now but after finding bad sectors and "repairing" it did actually work

solve the problem of battery and loss of settings , change the battery of my htc, now everything is fine , 3 days that the battery is discharged properly , I hope this information will help someone.

thats kinda "cool" to see many people have same problem as i do. atleast it wont run u crazy as before
1. sometimes phone dies when battery is 15%, and sometimes it dies when around 4% 2% or even 1%
2.resetting settings after phone dies!
so is the solution, to change battery? any better way that doesnt need to spend money?

Replace battery
how did you do this? does this actually work?
https://www.fixez.com/blog/how-to-replace-htc-one-m8-battery/

grafik2 said:
how did you do this? does this actually work?
https://www.fixez.com/blog/how-to-replace-htc-one-m8-battery/
Click to expand...
Click to collapse
Yes I've done this a couple of weeks back. The replacement is actually less hard as it seems.
But finding an original replacement battery seems to be pretty hard - Even though the replacement I bought is HTC branded and looks genuine, I feel like it's actually draining a little faster than my old original. 12€ Ebay had too good to be true.
However the instant-shutoffs are now a thing of the past along with the database corruption, so I'm going to have to live with a little less battery life.
Or does anyone know of a provider for genuine batteries?