> But then your phone will have been with every port your battery pack has been with! It's unclear to me what this means. I thought it works like this: - Con

> But then your phone will have been with every port your battery pack has been with! It's unclear to me what this means. I thought it works like this: - Connect battery pack to USB port - USB port tries to hack the battery pack, but it's too dumb, so the attempt goes nowhere. The charge flows nicely, though. - Disconnect battery pack from USB port - Connect device to battery pack