Unusual batterry drain when phone is idle
 

I have my N900 for 20 days now and I was pleased to see that the baterry would last for two full days.

However, this has changed since Monday night. I charged it at 23.30 Monday and it must have drained completely sometime during Tuesday night, as I woke up Wednesday morning to see it was off.

I checked the battery indicator at around 00.30 Tuesday and it was half full (or half empty) that means that half the battery drained in less than 8 hours and while the phone was idle!

This is really frustrating as I don't want to charge my phone when battery is only half empty and yet if I don't, I won't have any battery left in the morning...

I did not change my usage routine
The wifi connection is always off
I have only installed egg timer, hex-a-hop, OM weather, FM radio, tuner, cpumem-applet and nameday applet

It seems strange to me that the battery time is cut to half with no apparent reason, unless there are some issues with the latest maemo firmware update.

Does anyone else have the same issue? Is it a firmware - battery indicator bug?

Re: Unusual batterry drain when phone is idle
 

Can you go into terminal and type top? - Let us know if anything is sucking the CPU dry? :)

Re: Unusual batterry drain when phone is idle
 

Right now I am charging so this is what it reads.

CPU user is 3.5%-5.5%
CPU sys is 1.2%-2%
CPU Idle is 92%-96%

Do you need more info?

Re: Unusual batterry drain when phone is idle
 

Hmmmm we might need some N900 experts!

Mine is
CPU 2.9 - 5 %
sys 2 - 5 %
Idle 95 - 97 %

Seem similar - doesnt sound like anything is hammering your cpu.

Although half the battery in 8 hours is ok (if being used!) idling i'm getting about 28 hours at the moment.

Re: Unusual batterry drain when phone is idle
 

Thanks for the reply noobmonley :D

Could the alarm I have on daily be causing this?

I know that sounds ridiculous, but you never now...

Re: Unusual batterry drain when phone is idle
 

Pulseaudio could be appearing in top even though no sounds are being played. This happens to me, quite rarely though and it eats ~2% cpu all the time, shortening battery life by at least 50%.

Re: Unusual batterry drain when phone is idle
 

Disable 3g whenever you do not need it. There should be some statusbar applet for that.

And yes there seems to be some problem with some users with new firmware use search here and maemos bugzilla.

.edit have you rebooted?

Re: Unusual batterry drain when phone is idle
 

Might be worth listing the processes running in top :) - could help identifying what you have running.

Re: Unusual batterry drain when phone is idle
 

I've had the same behaviour. I tend to get a good battery performance with one charge and considerably poorer performance with the next charge so there is some sort of fluctuation. Could be due to the fact that at work I charge with charge adapter while at home with the dedicated charger.

But I've also noticed that leaving browser windows running in background sometimes drains the battery pretty fast. Fortunately it seems that the fix to wlan hanging using static ip's works for me.

Re: Unusual batterry drain when phone is idle
 

Pulseaudio? I have the media player widget on my desktop... are you telling me it never actually shuts down after playing?

And yet... i added the widget from day 1 and had no problems, this battery drain started 4 days ago...