Kenwood TK-2100 Radio Battery, Kenwood TK-2100 Radio Batteries are built to withstand time. We carry aBattery Clearance carries a complete line of TK-2100 Two Way Radio Batteries.ll 3 Types of battery chemistry's, NiCd, NiMh and Li-Ion for Kenwood TK-2100 Radios. Our Replacement Batteries are made to meet or exceed OEM specifications.