The BM ~1 is designed to monitor performance of 12 volt lead acid battery systems with capacities of up to 600 Amp hours. It is supplied complete with a precision 100 AMP shunt and a prefabricated cable assembly to enable simple DIY installation. The unit continuously monitors voltage, current charge or discharge, number of amp hours charge or discharge, the batteries state of charge and the time to charge or discharge. It also monitors the voltage of the engine start battery. This information leads to more efficient use of the battery, which can enhance battery life and reduce the risk of failure. Fully monitors domestic battery bank
Monitors voltage of engine start battery Specifications Supply voltage
BM ~1 24V 16 ~ 32 Volts DC
Supply current 1.5 milliamps
Battery capacities 5 ~ 600 AMP Hour
Load current 100 AMPS Maximum
Charge current 100 AMPS Maximum
Shunt Standard 50 millivolt at 100 AMP Cables supplied: 100 AMP shunt link to M8 Ring terminal.
5 Metre from display unit to battery ~ fused and fitted with ring terminals for shunt, fuse holder and M8 ring terminal to battery.
Display unit
Standard 110mm square Clipper case. High contrast LCD, backlit for night viewing.
Minimum voltage visual alarm
Simple operation ~ 4 keys to select backlight, Volt Amp State of Charge screen,
AMP hours or Time to run.