TOPCHANCES Rechargeable Home Cordless Phone Batteries Replacement for Vtech BT-17333 BT-27333 BT17333 BT27333 CS2111 CS5111 CS5121 CS5121-2 CS5111-2 CS5121-3 CS5211 AT&T 01839 24112 EL41208 Ni-CD Short-circuit protection.It is very safety! Capacity: 400mAh,Voltage: 3.6V,Battery Type:NI-CD Batteries are made with the highest quality materials High Quality cells that meet original Battery 100% compatible with original manufacturer equipments and chargers