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Why does my battery last for max 5 hours? [not relevant]

asked 2014-08-17 23:18:18 +0300

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updated 2014-08-17 23:18:18 +0300

Skyforger gravatar image

I just got my first Jolla phone, and It's been a spare phone for my friend. Today I charged it to 100% in the morning, and at 15.30 it was down to 12 %. The drainage is immense, and I can't understand why. It's useless to have a phone that lasts for 5 hours a day :/ I use whatsapp sometimes and rarely Facebook. This is driving me crazy!

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The question has been closed for the following reason "question is not relevant or outdated" by r0kk3rz
close date 2015-07-01 16:39:37.850987

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https://together.jolla.com/question/48344/jolla-reboot-problems-hot-fix/ this could give you a solution for now. not a piece of cake but piece of paper.

FOMBE ( 2014-08-17 23:41:13 +0300 )edit
2

Try downloading Lighthouse from the Jolla store and check if a process is hogging the cpu and draining the battery. That might help norrow down the problem.

shfit ( 2014-08-17 23:43:55 +0300 )edit
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Hi, you can install an app from the Store called 'Crest', this will show you which apps are consuming a lot of CPU (and through that, a lot of battery). Please have a look if this is the result of an app doing something wrong, or the phone. (You can see system processes by using the pulley-menu to select 'All apps: on' or something like that.)

If you are using Android apps, those generally consume a lot more CPU than native apps, so if possible, you should look for native alternatives. For example, there is an app called 'Mitäkuuluu' which is a native WhatsApp client, and an app called 'Friends', which is a native Facebook client. The first one can be found here: https://openrepos.net/content/coderus/mitakuuluu and the second one is in the Store, I think.

nthn ( 2014-08-17 23:47:54 +0300 )edit
3

@Skyforger with Whatsapp , do you mean the Android app, or Mitäkuuluu? Mitäkuuluu has a known bug which causes the app to hog cpu and can drain the battery quite quickly.

shfit ( 2014-08-17 23:48:35 +0300 )edit

As shfit suggests! I had that bug too and 5 hours to empty the whole battery sounds just like that. Simply try to fully shut down Mitäkuuluu via the pulley menu within the app and see if the phone gets "lagless" as Mitäkuuluu used up to 99% of CPU capacity because of the bug. Besides checking with "Crest" there is alo an awesome port of mighty "HTop" available to check processes on your phone.

mosen ( 2014-08-18 00:30:40 +0300 )edit

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answered 2014-08-18 13:47:07 +0300

jjaskanen gravatar image

You say you just got the phone. Have you installed system updates? The early Sailfish versions had a bug which caused the NFC daemon to drain the battery like you describe. The problem hasn't been around for a while now with current OS versions, but the phone may still ship with a version that has the bug.

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yes i have updated to 1.1.1.27. latest update. thank you for advise

rajmohank ( 2015-02-10 14:59:50 +0300 )edit

i have switched off crest, lighthouse and hunger meter . i will update the time the battery lasted later . now i am having just 45%. 3hrs after full charge

rajmohank ( 2015-02-10 15:04:07 +0300 )edit
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answered 2014-08-18 01:09:12 +0300

mordae gravatar image

I've had the same issue. No run-away process, no excessive I/O, no excessive RAM consumption. Just power consumption and overheating to the point of yellow spots appearing on the screen due to the heat. Plain reboot did not help. No info in journal, no info in kernel log.

Taking out the battery for 10 minutes solved the issue for me. It usually helps when the non-Linux components start malfunctioning, or at least I guess that's what happened.

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i tried the same and no big difference

rajmohank ( 2015-02-10 15:00:41 +0300 )edit

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Asked: 2014-08-17 23:18:18 +0300

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Last updated: Aug 18 '14