I want to pickup a few extra NP-F970 batteries for my new Aputure Amaran HR672 LED light kit, but I'm clueless when it comes to batteries. The batteries that came with it have this information printed on it:
NP-F960/F970 7.4V 53.28Wh
When I went battery shopping, the first two sets of numbers were easy to find, but I found the last number varied quite a bit from unknown brand to unknown brand. What does that last number mean and does it matter? Any help and/or recommendation is very much appreciated.