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Posts: 2,154 | Thanked: 8,464 times | Joined on May 2010
#2685
Originally Posted by thedarkus View Post
Hi all guys

I'm from Italy, member of smartphonetab.net community, where a lot of italian n900's owner works together to carry on our loved smartphone.

We found a problem, occurred after the installation of the latest PK version. Many of us, almost all of us, are suffering from heavy battery drain.

After some months of testing we found two different possible causes of the problem.

- First is the concurrency of the Battery patch installation with the latest version of PK. It seems that many of us experienced heavy battery drain in standby mode (eg, during the night, no wifi, no bt, no widget, no data connection, 2g module locked), solved only after removing battery patch (reflashing the n900 without installing it again is the safest way to leave this first problem behind us)
Battery patch is not part of kernel-power and is not developed by people around kernel-power. So report problem about battery patch in other thread.

Originally Posted by thedarkus View Post
- The second one, still unsolved, is (again..) a huge battery drain when using the n900 (eg, wifi browsing, reproducing media, the tipical use of a smartphone). Most of us observed that the effective battery life in now half than what usual without power kernel or with a previous version of this. Wondering why this strange behavours occurs only with PK49, we noticed that in the version 49's changelog is indicated a new version of the bq27x00 module.
We also observed that the recharging time is now limited only at 2 hrs (from empty to full ), when with the previous PK versions (and with the stock one too) is around 3-4 hrs (from empty to full).

One of our users removed PK49 on a n900 suffering this kind of trouble, reinstalling the version 48. He got it, now the phone is back to a normal drain of the battery, excluding an hardware failure.

I'm asking you if someone here noticed the same kind of problem with the PK49 and if Pali has been informed that something is wrong with battery management.

Concluding i ask you sorry for my bad language, i never speak english in my normal life so I am a bit rusty ^^


Cheers


d!
In kernel-power v49 is bq27x00_battery module DISABLED by default (blacklisted in /etc/modprobe.d/*blacklist*), so it is not caused by this module.

Also over/under-voltage (which can reduce/drain battery) can be configured by kernel-config application (from kernel-power-settings package). Try to use other kernel-config profiles, maybe it solve this problem.


Somebody else also see high battery draining after upgrading from v48 to v49?
 

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