I had decided on this BG by Meike due to other, positive product reviews. After receiving the goods I first fully charged the batteries supplied. This, however shortly after they are inserted into the BG only indicated by 6% capacity, the camera turns off soon after. I then tried the whole again without the BG, here are initially directly at 100%, a few minutes later at about 5% and then leave again the lights.
Any use of the product is therefore not possible for me and that's why it went straight back. For me it's cheaper crap and can therefore express absolutely no recommendation for it.