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I'm very satisfied with my Goalzero Nomad 7, it's small, easy to strap to your backpack, and it fully charges your batteries or anything that charges from USB or even 12V power in as little as 3hrs in good sunlight. There are lots of solar panels to choose from, any one will probably do the job, so shop for one that suits you. What you really need in your ...


I use two cheap solar panels (A5-paper size, folding ones) on bike trips, one without a battery and one with. I have both installed on my bike all day, with my GPS device plugged in to one of them all the time. I travel on roads and in a particular direction, so I can adjust them every two hours or so to face the sun. This keeps the battery on a respectable ...

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