The Emergi-Lite M19017 is a Security system that requires a 4V 4.5Ah AGM replacement battery. The compatible Universal Power Group replacement is the UPG UB445 4V 4.5AH F1 AGM Battery (UB445), a 4V 4.5Ah AGM sealed lead-acid battery. This battery delivers up to 18 watts of standby power. It weighs 1.1 lb, uses F1 terminals, measures 1.86 L x 3.98 H in, and has left polarity. This is a direct drop-in replacement for the Emergi-Lite M19017 requiring no modification to the device.
