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This do-it-yourself kit is perfect for learning about solar battery charging and getting started with solar energy. Using 2 of our powerful 2V 380mA solar panels, you make a series connection and get 4V 380mA to charge either 2 or 4 rechargeable NiMh batteries. Kit includes 4 AA 1700mAh NiMh rechargeable batteries and blocking diode for protection from reverse current flow when there is no light on the panel. Easy connectors make this a very simple kit to build.
The solar battery charger will charge 2 batteries at a maximum current of 380mA and will charge 4 batteries at a maximum current of 190mA. For example, 4 of the 1700mAh batteries will charge in 9 hours of full sun, and 2 of the same batteries would charge in less than 5 hours of full sun.
Options: Increase current by adding 2 more solar panels for $25.00 (Be careful to not overcharge batteries! There is no charge control function in this simple charger).
Add 2 AAA battery holders for $2.50.
Add a digital multimeter to measure voltage and current for $15.95.
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