Amazon.com: Synergy Digital Alarm System Battery, Compatible with Honeywell 143553 Alarm System, (Ni-MH, 3.6V, 4500mAh) Ultra High Capacity, Replacement for Honeywell 143553 Battery : Electronics
LYNXRCHKIT-SC - Honeywell Control Panel Backup Alarm Battery (for LYNX-Series Control Panels)
Amazon.com: Synergy Digital Alarm System Battery, Compatible with Honeywell WLTP100 Alarm System, (Ni-MH, 7.2V, 700mAh) Ultra High Capacity, Replacement for Honeywell 300-06868 Battery : Health & Household