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Can I use a laptop battery and a small solar panel for a mini solar generator?

I have an old (but still good) laptop battery and a small 2 watt solar panel.  The idea is to create a small solar generator with usb outputs to charge phones, mp3 players, and run small usb devices such as lamps and fans.  I do know I can go buy bigger batteries, but I wanted to use this laptop battery for something.



rickharris5 years ago
It depends - To charge the lap top battery the voltage output of the solar cell must be above the laptop voltage - often 18 volts.