Auxiliary Battery. NOTE: There are a number of Youtube videos on how to replace battery. Maintenance Free.
Texecom Premier Range, All Panels - 12V 1.3AH REPLACEMENT, ALARM PANEL BATTERY
2× Twinflex Pro Replacement Batteries – 2, 4 & 8 Zone Alarm Panels
3 x Response Compatible Replacement Batteries, Alarm Panel & Bell Box - 6V 1.3ah
Alarm Panel Replacement Battery - YUASA NP7-12 (12V 7ah) High Capacity
GTIWUNG 6 PCS 1-8s Lipo Alarm, RC Low Voltage Buzzer Alarm, Battery Monitor Checker Tester, Battery Monitor Indicator Checker with LED for Lipo, Li-ion, LiMn, Li-Fe Battery
Low Voltage Alarm Buzzer POWERTOOL RC Lipo Battery Low Voltage Alarm 2S-3S Buzzer Battery Monitor Checker Tester with LED Indicator for Lithium Battery (Pack of 3)
