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
PowerSonic Rechargeable Battery 6 Volt 1.3Ah alarm sealed lead acid 6V PS-612 ST
POWERSONIC Battery Replacement for Mercedes Benz N000000004039
Enduring 6FM4.5 12V 4.5Ah Scooter Replacement POWERSONIC SEALED LEAD ACID
Powersonic 6V 8.0Ah Sealed Lead Acid SLA Battery PS-682
12v 1.2Ah/1.3AH POWERSONIC SLA Battery Rechargeable
