For Kenwood , KNB17 replacement battery, it works for TK280, TK290, TK380, TK390, TK480, TK481.
Ni-MH battery, 7.5 V , 1700 mah. Dimensions at 4&1/4" L x 2&1/4" W x 5/8" H. The battery is brought to you by Battery Barn