Your mobile charging station for 2 Hero3 or Hero3+ batteries and many USB devices. No matter where you are, you will always be able to charge your GoPro batteries with the Power Bar Duo by SP-Gadgets. When plugged to the mains you can charge 2 Hero3 or Hero3+ batteries + the battery in your GoPro camera at the same time. On the road it doubles as a power bank with enough juice for another 2 batteries or any other USB port chargeable device.
