comments:
Those are awful. Those tiny solar panels on those all-in-one battery banks don't charge for shit, and I'd be wary of the hand-crank lasting more than a few uses thanks to being all plastic (including the gears). Separate things are better. Those "all in one solar/hand crank" battery banks are not worth it. I have about a dozen 6W solar panels with USB out that are great, though. I've taken them backpacking, camping, to the beach, and they do a fantastic job of charging and topping off electronics. Even better since you can put the panel in the sun, and leave the battery in the shade, since having a battery out there in the sun cooking is no bueno. If you want something cheap and light, I would recommend something like this, but sadly, they are out of stock. Shame, those things absolutely rock. With the holes on the top and bottom, it makes it easy to hang from a backpack, secure to my motorcycle rear case, and they are even the "standard" panel setup used for things like the popular car mesh mount. If you can find something similar, I recommend getting a few if they're priced around $8-10 a piece.