Honeywell LYNXRCHKIT-SC LYNX 4 hr battery LYNX Touch 5200 all-in-one home and business control system features a bright, 4.7-inch full-color touchscreen with graphic icons and intuitive prompts for easy operation It will provide up to (4) hours of battery standby time in the event that your LYNX Series wireless alarm control panel loses AC power It is a rechargeable battery pack rated at 7.2VDC.