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canna change law physics
 
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Originally Posted by jyl View Post
Ah, so, if the GPS and 3G would drain the battery in a day, then if all was perfect the postulated panel would 2X offset the drain (15 vs 7) In the real world, might be challenging to 1X offset. If I read your post correctly.

Thanks. Looking around isn't coming up with much in commercial products that seem like they'd actually work. Maybe have to build one.
It looks like it would. The issue is building a solar panel to put out 5vdc with that size cells.

I might be able to experiment. I just had 30 panels delivered and 10 were shattered. If the shiping company does not collect the "debris", I might try to experiment for you.

There are places to buy just cells.

Here is a 7" x 7" cell, but the voltage is wrong. You'd need a dc-dc converter.

SUN 2.5 7 x 7 [SUN-2.5] - $21.00 :

at $21, the price is right.
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Old 02-14-2012, 07:48 PM
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