Vehicle power and battery monitoring systems

Battery monitoring system Mk3

The Mk3 battery monitoring system, based on the Mk2 system, is an enhanced version developed to meet the performance specification written by PEO Ground Combat Systems. The system has undergone extensive performance testing both at Ultra Electronics, EMS and by third parties. The system offers the user the option of specifying between one and three control boards per housing providing the flexibility to mount controllers throughout the vehicle or to minimize the space claim. The sensor battery post can be reconfigured to accommodate space constraints in the battery compartment.

battery monitoring


Dimensions: sensor: 81 x 64 x 25 mm, control unit: 84 x 58 x 29 mm

Weight: sensor: 0.5kg, control unit: 0.4kg

Input voltage: sensor: +14V to +32V, display: 28V to MIL-STD-1275

Current draw: sensor: 100mA (active mode) 30mA (sleep mode)

Battery types: 2 x 12V lead acid in series (flooded or gel)

Operating temperature: -40ºC to +71ºC
(MIL-STD 810E)

Download datasheet


  • Power consumption monitoring – providing accurate time remaining measurements for silent watch applications
  • Critical power threshold – crew alerts can be developed per customer requirements
  • Reduced life cycle cost – identifies faulty batteries so that only defective batteries are replaced
  • Controller monitors up to three battery pairs

  • One sensor per pair of 12V batteries
  • Measures voltage, current, temperature and conductance of each battery
  • Reports:
    • time remaining
    • state of charge
    • state of health
  • CAN interface − J1939 compatible
  • Scalable system for up to eight battery pairs by utilizing multiple controllers
  • Qualification tested to US Military Specifications MIL-STD-810 and
  • Rugged design in metal enclosure