[Gta04-owner] Solar charger - was How could GTA04 shine

[Butrus Damaskus]

What about integrating the next openmoko case with "charging crank" ;-). :-)

On Wed, Mar 14, 2012 at 11:09 PM, Alexander Lehner
<lehner at edv-buero-lehner.de> wrote:
>
>
> On Thu, 8 Mar 2012, Bob Ham wrote:
>
>> PS,
>>
>> On Thu, 2012-03-08 at 10:05 +0100, Christoph Mair wrote:
>>
>>> To get better
>>> efficiency a MPPT (maximum power point tracker) is recommended. Its a
>>> chip which regulates its own input voltage to the value where the
>>> panel delivers the highest output current.
>>
>>
>
> Well, without using this MPPT I gave it a simple 20-EUR try, and it looks
> pretty disappointing (picture and description):
>
> http://wiki.openmoko.org/wiki/User:Blutsauger#Even_more_unrecommended_charging_options
>
> I _know_ that solar charging is not very promising in comparison to what
> such a phone needs, but the results really struck me into desparation...
> There will be no modified solar case, but rather a modified nuclear
> powerplant case...
>
> A.
>
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