For cheap money a super product

I invite the Power Bank on my S4 Active and my GoPro 3 Silver.
The Active can I load a PowerBank charge about 4. So for a week camping holiday without power access I came back loose. The 2 Amp charging socket is pumping electricity into neat phone.
For the accusative of the GoPro I only dare to use the 1 amp socket, but they are also loaded in absolutely reasonable time.
It actually requires a 2 amp battery charger to the bank in 12 hours to recharge. Everything else takes definitely too long. Therefore, there is of me only 4 stars because the corresponding charger is not there, what would have to use very simplified. But otherwise it is a good piece of technology that works very reliably.