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Maxwell Ultra 31/1800 Ultracapacitor Engine Start Module


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Maxwell Ultra 31/1800 Ultracapacitor Engine Start Module

The Maxwell ESM is by far the leading ultracapacitor-based engine starting product on the market today and offers unmatched capability in truck starting.

  • Maxwell Engine Start Module
    • Ultra 31/1800
    • Fits Class 7/8 Trucks
  • Provides Higher Voltage at Lower Temperatures
    • Cold Starts To -40°C / -40°F
  • Installs Like Standard Group 31 Batteries
    • Recharges in ~15m or Less
  • Extends the Lifespan of Lead Acid Batteries
  • Power and Voltage:
    • Input (B+ Terminal): 10 - 18V
    • Output (5+ Terminal): 16.2V
    • Peak Power: 32.8 KW
  • Cold Cranking Amps: 1800 CCA (~3s To Crank)
  • Recharge Time: ~20m (@ 10 Amps)
  • Terminals: SAE 3/8" - 16 UNC (3 Each)
  • Dimensions: 13" (L) X 6-13/16" (W) x 9-7/16" (H)
  • BCI Group 31
  • Covered by a 4-Year Warranty
  • Sold Individually
  • Quality Made Product

Today’s trucks demand more energy from batteries than ever before, and batteries alone are no longer keeping up. To solve the frustrating problem of discharged batteries that can’t start the truck, fleet managers and operators are turning to ultracapacitor engine start technology for Class 7–8 trucks. The Maxwell ESM takes over engine cranking for trucks with engines up to 16 liters in displacement and delivers faster cranking with quicker starts. Unlike a battery, which is susceptible to extreme cold and hot temperatures, our ultracapacitor-based ESM performs down to –40°F and up to +149°F (–40°C to +65°C).

If you should need additional truck parts and accessories, please don't hesitate to call our toll-free number:

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Warranty Information

4 Year Warranty
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