Hi all, does a phone battery die suddenly with no warning or is it a more gradual process with the battery holding less and less charge after each recharge? Since last 2-3 days, my phone battery is running flat after 3-4 hrs. Problem is I also did a os upgrade (Android) a few days ago! ... Why I think its the battery and not the os upgrade, its because it seems to be getting worse - (just now its loss about 15% in about 20 mins and its just idle) Thanks, Daniel. -- dan062 <dan062@yahoo.com.au>
Dan062 via luv-talk wrote:
Hi all,
does a phone battery die suddenly with no warning or is it a more gradual process with the battery holding less and less charge after each recharge?
As David observed the battery MAY be getting old; but why not fully charge it and remove it from the phone; then reinsert it in the phone again after 3-4 hours , and recheck ?
Since last 2-3 days, my phone battery is running flat after 3-4 hrs. Problem is I also did a os upgrade (Android) a few days ago! ... Why I think its the battery and not the os upgrade, its because it seems to be getting worse - (just now its loss about 15% in about 20 mins and its just idle)
When you say 'idle'; that is as indicated by : Settings>Developer options>show CPU usage ? regards Rohan McLeod
Hi, On 23/05/2016 5:50 PM, Dan062 via luv-talk wrote:
Since last 2-3 days, my phone battery is running flat after 3-4 hrs. Problem is I also did a os upgrade (Android) a few days ago! ... Why I think its the battery and not the os upgrade, its because it seems to be getting worse - (just now its loss about 15% in about 20 mins and its just idle)
Chances are that there is a process that is chewing up CPU and therefore causing your battery to be more engaged. Also, when doing upgrades, it is normally a recommendation that you don't do so unless the battery is fully charged and the phone is connected to power (this is for a number of reasons). If the battery wasn't fully charged when the upgrade was done, then there may be an issue requiring a re calibration of the battery; perhaps doing that will help. Throw the following in your favourite search engine, hope it helps: how to re-calibrarte a li-ion battery Kind Regards AndrewM
On 24/05/16 00:25, Andrew McGlashan via luv-talk wrote:
Hi,
On 23/05/2016 5:50 PM, Dan062 via luv-talk wrote:
Since last 2-3 days, my phone battery is running flat after 3-4 hrs. Problem is I also did a os upgrade (Android) a few days ago! ... Why I think its the battery and not the os upgrade, its because it seems to be getting worse - (just now its loss about 15% in about 20 mins and its just idle) Chances are that there is a process that is chewing up CPU and therefore causing your battery to be more engaged. There is no unusual process that I can see.
Also, when doing upgrades, it is normally a recommendation that you don't do so unless the battery is fully charged and the phone is connected to power (this is for a number of reasons). Phone was connected to charger during upgrade, but I dont remember if it was fully charge, but I'd say +75%, this phone is rarely below the 75% mark.
If the battery wasn't fully charged when the upgrade was done, then there may be an issue requiring a re calibration of the battery; perhaps doing that will help.
Throw the following in your favourite search engine, hope it helps: how to re-calibrarte a li-ion battery I have done that 2 or 3 times already (drain to 0% and recharge to 100%).
I will backup important data and reset it to factory default asap. Daniel.
Kind Regards AndrewM
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On 23/05/16 17:50, Dan062 via luv-talk wrote:
Problem is I also did a os upgrade (Android) a few days ago! ... Why I
I installed a few upgrades to android after I mysteriously got enough space back on my phone to install them.. And noticed the phone getting hotter and power usage higher than normal too. Turns out an old app I didn't need any more (the optus one to show you your data usage) had kicked back into gear, but couldn't access an optus server, because I'd changed to boost. Once I uninstalled the optus app, the power drain disappeared.
On Tue, May 24, 2016 at 12:34:45AM +1000, Jason King via luv-talk wrote:
On 23/05/16 17:50, Dan062 via luv-talk wrote:
Problem is I also did a os upgrade (Android) a few days ago! ... Why I And noticed the phone getting hotter and power usage higher than normal too. Turns out an old app I didn't need any more (the optus one to show you your data usage) had kicked back into gear, but couldn't access an optus server, because I'd changed to boost.
Once I uninstalled the optus app, the power drain disappeared.
yup. 99% of the time 'power drain' is a bad app. could be hogging and burning cpu, or just looping and crashing. things change between android versions (eg. APIs, SMS db schema) and sometimes old apps can't deal with it. first port of call in android 6 (and 4.4, which is what I have handy) is settings -> battery and look at the top apps. probably it's the same in any aosp variant. the same display is in sony android 5.1 as settings -> power management -> battery usage and whichever android flavour you have, it'll be there somewhere. it's an aosp thing. if that display fails to finger anything, then something looping and crashing will be super-obvious in logcat, so attach to a laptop with adb and you might be able to see it, although some of this logcat functionality went away with android 5 permissions. or root it, and then give permissions to alogcat app, or install cyanogenmod instead (and then you can click a few menus to enable root), or... many thing. you could even try one of the 'battery optimisation/drain' apps which are probably in the top 10 of malicious and/or battery drain apps out there :) or echo rootmydevice > /proc/sunxi_debug/sunxi_debug hehehe the summary is that there are many ways to see what's going pear shaped, but sadly none of them are particularly obvious or easy. I guess this is fundamentally due to the "always killable/restartable app" model and event driven nature of android, combined with the strict permissions and isolation design. android is really entirely unlike linux apart from the kernel and busybox. cheers, robin
participants (7)
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Andrew McGlashan -
Dan062 -
Daniel Jitnah -
David Zuccaro -
Jason King -
Robin Humble -
Rohan McLeod