LENMAR CB0511: 1200 mAh 3.6VOLT 4.3wH REPLACEMENT BATTERY FOR PANASONIC KX-TG SERIES CORDLESS PHONES Fits: AT&T 104 / Panasonic KX-TG2237S / Panasonic KX-TG2247 / Panasonic KX-TG2247S / Panasonic KX-TG2257 / Panasonic KX-TG2257S / Panasonic KX-TG2267 / Panasonic KX-TG2730 / Panasonic KX-TG2730S / Panasonic KX-TG2740 / Panasonic KX-TG2740S / Panasonic KX-TG2770 / Panasonic KX-TG5100 / Panasonic KX-TG5100M / Panasonic KX-TGA2700S Replaces: General Electric GEJ-TL26400 / General Electric GE-TL26400 / Panasonic CS-P402CL / Panasonic HHR-P402 / Panasonic HHR-P402A / Panasonic N4HKGMA0001 / Panasonic PP511 / Panasonic P-P511 / Panasonic PP511A / Panasonic P-P511A / Panasonic PQ Replaces: General Electric GEJ-TL26400, General Electric GE-TL26400, Panasonic CS-P402CL, Panasonic HHR-P402, Panasonic HHR-P402A, Panasonic N4HKGMA0001, Panasonic PP511, Panasonic P-P511, Panasonic PP511A, Panasonic P-P511A, Panasonic PQ Fits: AT&T 104, Panasonic KX-TG2237S, Panasonic KX-TG2247, Panasonic KX-TG2247S, Panasonic KX-TG2257, Panasonic KX-TG2257S, Panasonic KX-TG2267, Panasonic KX-TG2730, Panasonic KX-TG2730S, Panasonic KX-TG2740, Panasonic KX-TG2740S, Panasonic KX-TG2770, Panasonic KX-TG5100, Panasonic KX-TG5100M, Panasonic KX-TGA2700S 3.6V 4.3 Wh 1200mAh Nickel-Metal Hydride Longer talk time with 1200 mAh current capacity