Kastar 2 Pack Cordless Phone Battery for Panasonic HHR-P104 HHR-P104A Type 29, Panasonic KX-FG6550 KX-FPG391 KX-TG2388B KX-TG2396 and More Kastar Replacement Battery for Type 29 Battery Battery Type: Rechargeable Ni-MH Battery Voltage: 3.6V; Battery Capacity: 1000mAh Package Includes: 2 Batteries Compatible with: Panasonic HHR-P104 HHR-P104A, 23968 439024 439025 439026 439030 439031, Again & Again STB941, Battery Biz B-779, Dantona BATT104, Empire CPH496, Energizer ERP104, GE TL96411, TL26411, TL86411, GP GP85AAALH3BXZ, Hi Capacity B779, Interstate Bat