Replacement battery for Panasonic cordless phones, Voltage: 1.2V, Capacity: 400mAh, Size: AAA. 8PCS nimh aaa rechargeable batteries in a box. BK-40AAABU battery is pre-charged, low self-discharge, can be recharged 2500 times. which can reduce your costs, is the ideal alternative to disposable batteries. BK-40aaabu 1.2V 400mah nimh rechargeable battery fit almost all panasonic cordless phones. Compatible with KX-TGD220N, KX-TGD22N, KX-TGD223N, KX-TGD224N, KX-TGD225N, KX-TGE273S, KX-TGE274S, KX-TGE275S, etc. NiMH batteries are made of more environmentally friendly materials than traditional batteries, and do not contain Hg/Cd/Pb, which is important for reducing heavy metal pollution and more suitable for widespread use in everyday electronic products. Newly bought nimh aaa rechargeable phone batteries are precharged and ready to use, and the best performance can be achieved after 3-4 times of charging and usage. If you have any doubts about the cordless phones model used, or any other quality problem please feel free to contact us. Compatible with KX-TGD220N, KX-TGD22N, KX-TGD223N, KX-TGD224N, KX-TGD225N, KX-TGE273S, KX-TGE274S, KX-TGE275S, etc.