This K&F Gopro battery kit; comprises a 3 battery USB powered Charger and 2 go pro compatible batteries. The included batteries compared well with my existing go pro made batteries. The gopro batteries managed 88 minutes on average over 3 charging cycles recording video on high resolution and bitrate. The K&F batteries, which were new and not a year old, managed around 95 minutes per charge. I was very happy with this result; that over 6 tests with them there were only 3 minutes apart suggests these are great batteries.

The description says it charges the batteries simultaneously; I haven’t been able to reproduce that I have tried it on 20-, 65- and 185-watt mains adaptors. I saw each time the batteries get fully charged left to right each time over 3 full charging cycles. On the last one I mixed the battery order around and it still charged them up left to right. The charge time was good 3 batteries fully charged in under 4 hours; and you can power the charger from a powerbank that can deliver high charge rates; so, if you are shooting your epic movie, you can run a camera for an hour and charge up 3 others even away from home.

The included batteries performed very well; and the charger makes life swapping batteries at home and on the road easier.