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10

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 ...


2

Ideally you want an independent device for your navigation. Such as a Garmin Dakota 20 or a Garmin Foretrex 401 which are both considerably cheap. On established trails you don't need that at all. However if things go south, murphys law suggests, that your cellphone will be dead by then as well. An external power bank (plenty of links above already) can ...


2

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 ...


1

Having done tonnes of research in this area, I settled for products from a company called Portapow. They do an 11w panel which I combined with their 6000mah solar battery and a AA/ AAA battery charger. With this set up I can charge my phone from either the solar panel, battery pack or solar battery. I can charge batteries for my GPS. The 11w panel charges my ...


1

I'd recommend getting a solar powered charger. I go for multi-day hiking trips and I use one all the time. I ordered mine from aliexpress.com, waterproof, for less than $20. It's really inexpensive because you're ordering it directly from China and it's free shipping since China ships so many goods all around the world.


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You're a little too late for this kickstarter campaign, which covers your exact use case: https://www.kickstarter.com/projects/ezelleron/kraftwerk-highly-innovative-portable-power-plant It's a fuel cell that converts lighter or camping gas from standard containers to electricity for USB charging with outdoors in mind. However fuel cells aren't new. What's ...



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