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Electronics/Circuits Question
Posts: 900
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Karma: 7
Hello NS'ers. I want to make a solar charger for my smartphone. Is there any reason I can just splice a mini USB cable directly to a solar cell and do it that way? Most online tutorials recommend using the solar cell to charge a Li/Ion battery and then using that indirectly to power up the phone. This basically doubles the cost of the setup and I'd like to avoid it. I know its a super random question but there's gotta be some people with experience on here.
Posts: 398
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the tutorials are correct, you should use a battery.
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The solar cell will put out varying voltages as it heats up/cools down and the sun intensifies/weakens etc etc. You probably don't want those kind of spikes going straight into your phone. Also, you can charge that battery during the day then charge your phone at night = profit.
Posts: 685
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Karma: 95
^^^ what they said. Also, Li/ion and Li/po cells are pretty cheap nowadays.
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