HQRP 2100mAh High Capacity Backup Battery for Ademco Honeywell Lynx Plus Touch L3000 L5000 L5100 L5200 L7000 LYNXRCHKITSHA LYNXRCHKIT-SHA 300-03866 WALYNX-RCHB-SHA Replacement + HQRP Coaster HQRP&reg; Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 7.2V; Capacity: 2100 mAh; Ni-Mh; 200 Days warranty!