[Gta04-owner] Advance OpenStreetMap surveying with GTA04? / batteries

[Jonathan Wilson]

> Several people asked me "what about solar cells?" and I was not sure. So
> your comment "A solar cell delivers enough energy to keep a GTA0x in
> 'sleep mode' alive" is very precious for us, thanks!!
>
> Sure, we will try to reduce consumption and, yes, I'm not sure the above
> will be enough. We'll try to make a 2-3 days test in May!
One idea that might work (if there is one suitable for the GTA04) would be 
to buy one of those things that takes normal AA or similar batteries and is 
able to charge the phone up from that. I know they exist, I just dont know 
if they exist in a form that would be compatible with (or provide enough 
juice for) the GTA04