Works for Razer Naga Epic Chroma
Need reversed the red and black wire. I had tried a couple of these batteries for my Razer Naga Epic Chroma. The first two attempts failed, as the battery wouldn't show a charge status or work in wireless mode. After doing a bit of research, I stumbled on a post where a user had swapped the pins on the JST connector. I tried it, and it work. The battery charges without issues in both wireless, and wired modes. It responds normally with the on/off switch, and displays a charge percentage while being used in wireless mode. I would recommend it to anyone seeking a cheaper option versus buying a new mouse.