EF Johnson Technologies 250-5100-281 is a replaceable battery pack for EF Johnson 5100 radios. It uses 9V AA alkaline cells to provide power and serves as a dedicated spare or replacement pack for the 5100 series. Designed specifically for EF Johnson 5100 radios, this model (250-5100-281) ensures a compatible, straightforward swap when the original pack has reached end of life.
