[maemo-users] N900 battery duration

From: Eero Tamminen eero.tamminen at nokia.com
Date: Tue Oct 20 18:51:46 EEST 2009

ext Andrea Grandi wrote:
>>>> Do you have RD-mode or RD-flags enabled?
>>> how can I know it? I just installed the utility to become root (sudo
>>> gainroot)
>> cal-tool --get-rd-mode --get-rd-flags
> it replies: disabled
> by the way: I've seen that connecting to Simyo UMTS/HSDPA (which is
> ALWAYS in roaming, since it's a virtual operator and it uses Orange
> network) it takes a lot of battery. If I keep connected to my home's
> wifi, battery last much much more.
> I'll be able to test with Italian 3Hg carrier once I'll come back in
> Italy... but this will be for Christmas holiday :\

Phone side needs much longer idle network traffic periods than WLAN,
to be able to power down.  It's best if you can track the network
traffic to find out whether something causes it to be always up
(some process in the device[1], traffic in the phone network).

	- Eero

[1] This could help, the Debian package builds fine for the device:
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