Vehicle power and battery monitoring systems

Battery monitoring system Mk2

Ultra's battery monitoring system provides the vehicle crew with accurate real-time battery health data. The Mk2 has been selected for installation on multiple US MRAP variants to monitor the C4ISR batteries. Production orders began in 2010. The Mk2 is also undergoing trials for use on the MATV program.



Dimensions: sensor: 81 x 64 x 25 mm, control unit: 146 x 160 x 29 mm

Weight: sensor: 0.5kg, control unit: 0.4kg, display: 1.5kg

Input voltage: sensor: +14V to +32V

Current draw: sensor: 210mA (active mode) 70mA (sleep mode)

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

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


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  • Power consumption monitoring - provides 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 the defective batteries are replaced

  • One sensor per pair of 12V batteries
  • Measures voltage, current, temperature and conductance of each battery
  • Reports
    • time remaining
    • state of charge
    • state of heal
  • CAN interface − J1939 compatible
  • Scalable system for up to eight battery pairs