[Gta04-owner] Battery life

[NeilBrown]

On Thu, 26 Apr 2012 23:35:54 +0200 Mario Barcala
<mario.barcala.rodriguez at gmail.com> wrote:

> Rainer Dorsch escribiu:
> > Am Thursday 26 April 2012 schrieb NeilBrown:
> > > On Thu, 26 Apr 2012 19:19:20 +0200 Mario Barcala
> > > 
> > > <mario.barcala.rodriguez at gmail.com> wrote:
> > > > Hi all:
> > > > 
> > > > I am new to this list and have not a GTA04 yet, but I'm thinking
> > > > about buying one. I want to free my phone :)
> > > > 
> > > > I'm worried about battery life. I have read Radek mail about QtMoko
> > > > v44, which achieves 25 mA when device is suspended = 48 hours, but, if
> > > > I want to use the device only as GSM phone, is it possible to poweroff
> > > > unused devides to increase autonomy? That is, is it possible to
> > > > poweroff bluetooth, wifi, etc and get extra battery life in suspend
> > > > and waked up also?
> > > > 
> > > > Thank you and congratulations for your work.
> > > 
> > > The 25mA is with everything unnecessary turned off.  If you have wifi or
> > > bluetooth powered, that number goes up quite a bit.
> > > 
> > > It seems likely that we can find some more things to turn off an get that
> > > 25mA down a bit more, but no-one had found the things to turn off yet
> > > (though the sound device is the first place to look).
> > > 
> > 
> > Neil, 
> > 
> > do you know why the n900 manages to go down to ~5 mA in airplane mode?
> 
> I don't know so much about this, but in airplane mode GSM must be down
> also. If I understand Rainer message, 25 mA is with GSM on. I don't
> know if all the difference come from GSM, but it has to be relevant.
>

I think you can blame the GSM module for about 10mA, though I haven' tested
this rigourously (and I have the GTA04A3 where you cannot turn it off
completely).  Maybe I'll try testing...

NeilBrown
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