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Unread 16-06-2014, 16:54
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Re: Solar NiMH trickle charger

Quote:
Originally Posted by Dunngeon View Post
received .003 mA of current
Wouldn't that be 3 uA?

Anyway:
The bottom line here is that direct connection of NiMh batteries to a solar panel could get exciting, in a bad way. The absolute gold standard is to use the panel to power some kind of charging circuit.

An LM317 as a constant current source would work, albeit not very efficiently. There are many single-chip solutions available, for example from Maxim, who has a policy of handing out samples quite freely, so if you need just one....
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