topic Re: S5 battery drain no wakelock in Android

S5 battery drain no wakelock

paulbacon — Sat, 25 Apr 2015 06:50:52 GMT

Had my S5 for about 3 months now no issues. Battery really good with about 3% drain overnight on wifi. Fully charged it last night and got up this morning to find the battery on 69%. Thought it was some app causing a wakelock but nothing in the battery stats. The phone only wokeup a few times during the night briefly, and the only processes using the battery were System Idle and Cell Standby. Had full signal all night aswell and wifi was ok.

So what could cause such a battery drain when nothing was using the battery?

Re: S5 battery drain no wakelock

Cleoriff — Sat, 25 Apr 2015 07:00:31 GMT

Hi Paul. Has your S5 recently updated to Lollipop?

Re: S5 battery drain no wakelock

paulbacon — Sat, 25 Apr 2015 07:07:39 GMT

No. I had Lollipop preinstalled when i got the device and then got some bug fix update when i turned the phone on for the 1st time. But all this was when i first got the phone back in early Feb

Re: S5 battery drain no wakelock

jonsie — Sat, 25 Apr 2015 07:12:00 GMT

Sometimes simply rebooting the phone will clear anything draining the battery.

Re: S5 battery drain no wakelock

paulbacon — Sat, 25 Apr 2015 07:13:25 GMT

@jonsie wrote:
Sometimes simply rebooting the phone will clear anything draining the battery.

Yea i used to do that on my S3, as there was a mediaserver bug that would drain the battery. However then you could see the culprit as it was obvious in the battery stats. This time there is nothing in there, nothing using the battery or keeping the phone awake

Re: S5 battery drain no wakelock

Cleoriff — Sat, 25 Apr 2015 07:16:15 GMT

I can only go as far as suggesting you take the battery out to check to see if it is bulging. (you know the test... if you lay it on a flat surface it should stay flat. Any type of distortion and it will move or rock) This was the cause of battery drain on my S3 when I had it). If it isn't that.. I would have to leave you in the hands of the experts to talk about other battery drain issues.:smileywink:

Re: S5 battery drain no wakelock

Cleoriff — Sat, 25 Apr 2015 07:22:51 GMT

Hi again Paul. Just found this from the AndroidCentral Forum. Others having a similar issue. Have a read through and see if there is a solution from those who have posted?

http://forums.androidcentral.com/samsung-galaxy-s5/402199-strange-battery-drain-overheating-no-wakelocks.html

Re: S5 battery drain no wakelock

paulbacon — Sat, 25 Apr 2015 07:31:04 GMT

Cheers. Could be a dodgy app update, although wouldnt this appear in the battery settings?

If i disable pre-installed apps, would that stop them running and using any permissions they have? S5 comes pre-installed with loads of apps you cannot delete that could be causing problems

Re: S5 battery drain no wakelock

Cleoriff — Sat, 25 Apr 2015 08:01:46 GMT

@paulbacon wrote:
Cheers. Could be a dodgy app update, although wouldnt this appear in the battery settings?

If i disable pre-installed apps, would that stop them running and using any permissions they have? S5 comes pre-installed with loads of apps you cannot delete that could be causing problems

Ah now @paulbacon you are getting far too technical for me. I know my limitations

I would wait until one of the real Android experts comes along like @MI5 or @viridis (Unless anyone else comes online before them)

Re: S5 battery drain no wakelock

MI5 — Sat, 25 Apr 2015 08:48:59 GMT

Yes if disabled they effectively are deleted except for the space they take up but I would look at any apps that updated yesterday first.

Re: S5 battery drain no wakelock

paulbacon — Sat, 25 Apr 2015 08:52:02 GMT

No apps updated. I manually update apps anyway for this reason. Last updated app was on the 23rd. Charged phone overnight on 23rd and was fine all day yesterday

Re: S5 battery drain no wakelock

MI5 — Sat, 25 Apr 2015 08:52:57 GMT

Strange one and as you say, no obvious reason for it.

Re: S5 battery drain no wakelock

paulbacon — Sat, 25 Apr 2015 08:54:46 GMT

Reboot appears to have fixed it. But know matter what the process was that was draining the battery, it should have shown up on the battery stats

Re: S5 battery drain no wakelock

Anonymous — Sat, 25 Apr 2015 08:57:26 GMT

I have noticed with my Galaxy A3 that if i charge it off a USB port on laptop, the battery will initially drain quicker than if it was charged with the supplied charger then it seems ok after the first 20% or so. The only thing reason I can think for this is the USB port doesn't charge it at the same rate as the supplied charger, though this shouldn't really make any difference.

Re: S5 battery drain no wakelock

jonsie — Sat, 25 Apr 2015 11:09:13 GMT

A reboot fixes most things but any apps you disable are usually reactivated again when you reboot.

Re: S5 battery drain no wakelock

Anonymous — Sat, 25 Apr 2015 13:21:06 GMT

Hi, I had similar battery drain issues and was ready to return the handset but there was an update to Lollipop released which cured the bug. Worth making sure Android is 100% up to date.

Hope you get it sorted!

Re: S5 battery drain no wakelock

paulbacon — Sat, 25 Apr 2015 13:56:05 GMT

Hi. Im reluctant to update as everything been prefect with Lollipop 5.0 until this issue