The LYNXRCHKIT-SC Lynx Backup Battery is a standard capacity, 4-hour rechargeable backup battery pack for Honeywell Lynx Panels. The kit replaces the rechargeable battery on the L3000 Lynx Plus Panel and is designed to power your Lynx Panel for 4 hours after a power outage. Unlike the HC, the SC Lynx Backup Battery provides power to the GSMVLP5 Internal GSM radio for up to 4 hours as well.The Honeywell Lynx Replacement Battery is 7.2V 1100mAh.This battery is a direct replacement for the WALYNX-RCHB-SC. Also known as -Honeywell Ademco Genuine LYNXRCHKIT-SC Lynx Backup Battery