IBatt iB-U1-F418 850mAh for Panasonic KX-TG2511, KX-MB2051, KX-TG2512, KX-FC965, KX-TG6521, KX-TG2521, KX-TS2570, KX-FC278, KX-TG7205, KX-TG6411, KX -TG5511, KX-TG6451, KX-TG6511, KX-TG1105, KX-TGA641,