Secondary Power Suply

Erland Lewin erland at
Fri Jul 11 11:01:03 CEST 2008

2008/7/11 Benedikt Schindler <BeniSchindler at>:

> has someone attached a secondary power suply to a OM device ?
> I am thinking of adding a solar cell to the back of the Freerunner.
> So that if it lies around on my desk it will get the standby power by
> the solar cell and not from the battery.
> did someone tried something like that?
> And did anyone know what the output V of the battery is?
> (I haven't my freerunner jet. So i couldn't look into it. Is it 5V like
> USB?)
> Or maybe the mA of a stand by / full running Freerunner.
> I know that we exceeded the 100mA at the boot up with glamo running.
> (problem for the boot up without battery)
> But in a stand by situation, we must be under 100mA because we could
> charge the device with a 100mA usb device......

There's a wiki page about power consumption:

I think the topic of solar cells has been up on the list (many months ago),
and the conclusion was that there had to be quite many cells to be able to
power a running phone.

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