Nasa BM-1 12V Compact Battery Monitor

Based on the highly successful BM-1 marine battery monitor, Nasa's BM-1 Compact is especially designed for applications where space is at a premium. Coming in at just 124 x 62mm x 23mm, small boats, caravans, mobile homes, RV's and renewable power installations can all benefit from the BM-1 Compact. The battery monitor is capable of monitoring the performance of any 12V lead acid battery system with a capacity up to 600 AmpHours. BM-1 continually monitors the voltage, current (charge or discharge) and calculates the state of charge together with the time remaining to charge or discharge the battery.  This information can lead to a more efficient use of the battery, enhancing its life and reducing the risk of failure.

Operation is very simple. One screen displays the voltage, current (charge or discharge) and a bar graph shows the remaining capacity. Furthermore, a flashing alarm is included to warn if the capacity is getting too low. A second screen shows the remaining time available at the current charge/discharge rate together with the remaining capacity in both analog and digital format. BM1 compact does all of this whilst consuming a meagre one and a half milliamps.

Features:
Compact Size: Only 125 x 62 x 23mm.
High contrast LCD display.
Supplied with a precision 100 Amp shunt and prefabricated cables to enable simple DIY installation.

Specifications:
Supply Voltage: 8-16 V DC.
Supply Current 1.5 milliamps.
Battery Capacities: 5 -600 amp per hour.
Maximum Load Current: 100A.
Maximum Charge Current: 100A.
Shunt Standard: 50 millivolt @ 100A.

Cables Supplied:
100A 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.