Review on Suptig Rechargeable Waterproof Housing for GoPro Hero 4/3+ Underwater Action Camera - Water Resistant up to 131ft by Mike Rubenstein

Yesterday I tested the 1.5m cable with 3 different USB battery packs (waiting to pack them up for the final test). I couldn't get the GoPro to work without first installing the original battery by turning on your GoPro and then connecting the 1.5m cable. GoPro (Black Hero 3) shows loading and I can start recording. GoPro recorded for about 20 minutes and then turned off. The battery becomes VERY HOT. I made sure the GoPro is plugged into the 1 amp port. Then I tried port 2.1a but I had the same problem. This happens with all three of my batteries. As soon as I receive their battery pack I will test it again but for now I am thinking of returning this product.