The LYNXRCHKIT-HC is a high-capacity backup battery for the L3000 Lynx Plus Wireless Control Panel. Completely rechargeable, this battery is capable of powering the L3000 control panel for 24 straight hours following a power outage.The LYNXRCHKIT-HC rechargeable battery kit is designed to replace the rechargeable battery installed in the L3000 Lynx Plus Panel. Low battery indicators will notify the user when the backup battery has one hour left before battery is completely depleted.This 7.2 volt, 2100mAh battery acts as a direct replacement for the WALYNX-RCHB-HC. Also known as -Honeywell Intrusion RCHRGBL BATTERY, H/ C - LYNXRCHKITHC