Replace battery in suspend

[Christian Rüb]

Am Samstag, 9. Mai 2009 schrieb Joerg Reisenweber:
> Am Sa  9. Mai 2009 schrieb Christian Rüb:
> > Hi,
> > 
> > is it possible to do the following:
> >  * power off GSM
> >  * suspend
> >  * plug external USB power supply (can do 100,500 and 1000mA)
> >  * open device and exchange battery
> >  * resume again
> >  * power on GSM
> >  * (optional) unplug USB power supply
> > 
> > I do not have a second battery (yet) but this scenario might occur while GPS 
> > tracking and not having the possibility to charge. I already have this 
> > external USB battery but it will not be enough to cover all the time I need 
> > my Frerunner running.   
> > 
> > I read somewhere that the GSM alway gets its power directly from the 
> > battery, thus my interest in turning it off before suspending. Can this work 
> > or might this even break anything?  
> 
> It's perfectly safe to swap battery while hooked to >= 500mA USB-power (GTA02 
> only! Never do this on GTA01 unless you know exactly what you're doing).
> Your considerations regarding GSM are correct, it needs a re-init after new 
> bat inserted. Alas this seems to be a broken function in SHR atm.
> 
> cheers
> jOERG
> 

Thank you all for your replies. So is GSM power down and up equal to a reset and would do the thing?

Related question - does anyone know an external charger for the 2nd Freerunner battery? Is it a good idea to use one of this cheap 5€ Nokia chargers, that are capable of charging a mobile and battery at the same time?

Cheers,
 Christian