I've been planning to buy portable solar panels for future camping and emergencies for so long and finally got them when they went on sale. I tested it at home for a short time and I have to say that I am impressed with the charging speed of my phone. I probably only charged it in bright sun for about 15 minutes before sunset and it's already 10% charged. The only thing to keep in mind is that you have to point it directly at the sun, and if it's not bright enough the solar panels will drain your phone's battery instead, so you'll need to be extra careful about where and when you set it high. high.
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