FNB-4xhi : 12v NiMH insert - goes in FNB-4/A
The FNB-4xhi is a 12 volt 1600mAh Ni-MH replacement rechargeable insert for Yaesu FNB-4 and FNB-4A battery packs (for the FT-209, FT-727, etc. This NiMH insert Goes inside the original battery casing; requires 3 solder connections to install. Provides much longer operating time than the original insert ! Can be slow-charged or fast-charged.