Our new DIY solar battery charger for AA batteries is a simple kit to build and also teaches you about solar energy. The solar charger will charge 2 or 4 AA batteries (AAA's with adapters). It will charge 2 batteries at a charge rate of 400mA and 4 batteries at a charge rate of 200mA. This means 2 2000mAhr batteries would charge in about 5 hours and 4 batteries would charge in about 10 hours of full sun. Higher capacity batteries will take a little longer. The kit requires very basic soldering skills and a few common tools. Includes two high-efficiency 3V 200mA solar panels, battery holders, diode, wires and complete instructions. Requires AA NiMH batteries (not included). Optional AAA to AA battery adapters to let you charge AAA's with this charger. Add a digital voltmeter to the kit for $12.95 by selecting option above. Learn about solar panel voltage, current, solar panel angles and solar battery charging. Teachers: Contact us for quantity pricing.
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All prices are in USD.