I'd like to charge a 600mAh NiMh rechargeable battery using a small photo voltaic panel. The smallest panel I found is 2V, 200mA. In ideal conditions, that's enough panel to over charge the battery. Does this matter? Will the battery be damaged on a sunny summer day?
I'd consider making a tiny charge controller if anyone could point me at a circuit.
The panel and battery will be built into an art project. The battery will power a Joule Thief which drives a colour changing LED. I have the circuit working on breadboard and will transfer it to strip board when I'm confident I've done all I need to do to preserve the battery.
I'd consider making a tiny charge controller if anyone could point me at a circuit.
The panel and battery will be built into an art project. The battery will power a Joule Thief which drives a colour changing LED. I have the circuit working on breadboard and will transfer it to strip board when I'm confident I've done all I need to do to preserve the battery.