Bought this for a last minute back up battery for ...

Bought this for a last minute back up battery for a 5 day camping trip. I charged it before going on the trip, which when I used all the charge (it charged my phone an equivalent of about 2 times), it did not really recharge via the solar charge at all for all the times I had it out in the sun. The power button really didn't work. In order to turn it on, I had to push the button really hard, but when I would want to turn it off, it did not turn off. Overall it did an ok job for a last minute purchase, but I will definitely look for a different one for my next trip.

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