PB-18xh is a 7.2volt 2700mAh LONG LIFE rechargeable Ni-MH battery for KENWOOD radios such as TH-27, TH-28, TH-48, TH-78A etc. Extends radio 1 3/4". Recharges with desktop fast charger OR with special plug-in wall charger (both sold separately). Provides maximum talk time for size (@ 2.5W power). Made to order.