"2200mAh  Hi-Capacity Battery Pack for Tivoli PAL (MA-4 3-pin) and TEAC Portable Radios" Ni-MH, 7.2v, 2200 mAh (perfect replacement for Tivoli MA-4, Teac BP-R1, BP-R2, BP-R3, & BP-R5) PLEASE CHECK if your radio uses a 2 or 3 wire battery before ordering! (This is a 3 wire battery). Includes charging instructions and simple tips (for best performance and longest life) printed right on the back label. Includes a thermal fuse for overcharge/explosion protection (make sure you have this!) Satisfaction guaranteed or money back - including return shipping!