It didn’t take long for me to discover that the RAVPower Power Bank is a premium device. When I plugged my iPhone into it, it began charging automatically. It turns itself off, too.
This 10,000mAh charger is cool. It’s solidly built. Its padded carry case keeps it from banging around against other objects in my bag. Best of all, I got more than two full iPhone charges out of it. I am impressed — strong buy.