HQRP 2-Pack Telephone Battery for Panasonic KX-TG2336 KX-TG2343 KX-TG2386 KX-TG2388 KX-TG2480 KX-TG4500 Cordless Phone System plus Coaster HQRP&reg; 2-Pack Rechargeable Battery plus HQRP&reg; Coaster; Extra Long Standby and Talk Time; Battery Voltage: 3.6V; Capacity: 850 mAh; Ni-Mh; Keep in touch with friends and family and never miss a conversation; Compatible with Original Battery; 200 Days warranty! NiMH battery provides more talk time per shift and is less prone to memory effect