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SkelStart Ultracapacitor Engine Start Module 12 Volt KMTESM12V2S

SkelStart Ultracapacitor Engine Start Module 12 Volt KMTESM12V2S

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Brand: SkelStart

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The Best In Car Care Since 1989!

SkelStart Ultracapacitor Engine Start Module 12 Volt KMTESM12V2S

SkelStart is a powerful module for reliable engine starting for engines under all weather conditions.

Features & Benefits

  • Offers extremely high starting current, multiple times per charge (vehicle or gen set diesels)
  • Rapid recharge in just 3 minutes after full or partial discharge
  • 100% vibration proof – all solid-state design
  • Classified non-hazardous for shipping, storage and application; the ESM contains no hazardous chemicals
  • ESM employs nano-graphene electrolyte-impregnated ultra-capacitor media
  • This design is temperature-insensitive – works at full power from colder than -40°C and up to +65°C (149°F)
  • SkelStart warranted for 6 years – the ESM is designed for 1,000,000 charge/discharge cycles at 68°F
  • The ESM is derived from a SkelStart design now in use by the ESA (European Space Agency)
  • The ESM mounting in all orientations (vertical, horizontal, inverted)
  • The 12 volt ESM is similar in size to a Group 31 battery, yet is one third the weight
  • Installation is completely separate from the battery system; as a result, the ESM is unaffected by parasitic draw current losses on computerized engines
  • The SkelStart ESM reduces stress and improves lead-acid battery life by removing the shock load current demand at starting
  • The ESM improves starter life by delivering higher crank voltage than lead-acid batteries, thus lowering current and producing less heat at the motor brushes
  • Made in Germany

The SkelStart Engine Start Module is the most powerful module for engine starting applications in the world. It's based on Skeleton Technologies' industry-leading SkelCap ultracapacitors, which have the highest power density on the market.

Batteries are the leading cause for engine starting problems because of their short lifetime and vulnerability in extreme weather conditions. SkelStart takes the demanding job of starting the engine, protecting the battery and increasing its lifetime. SkelStart's effective operating temperature range is from -40°C to +65°C (149 degrees fahrenheit) , which makes it a perfect fit for vehicle that sit for long periods of time (hot rods, classic cars, etc) bus, truck, rail and heavy equipment applications.

Battery lifetime increase

  • Much higher peak power than batteries can provide
  • Temperature won't affect starting power
  • Starting power even with "dead" batteries - If SkelStart's energy is used, it needs min 9V and max. 16 min to be charged from empty to full.
  • Starting power doesn't come directly from batteries
  • More energy stored by the end of each day.
  • Battery lifetime will be increased 1.5 - 2 times.

Fuel consumption decrease

  • No need for idling to charge the batteries
  • Measured example: Idling fuel consumption from 6% to 2% 

No hassle - one time investment

  • Lifetime 1M cycles, no maintenance needed
  • Warranty 6 years

SkelStart™ Engine Start Module 12V Specs

  • 12 V / 2133 CCA*
  • Dimensions (L x W x H): 12.92" Length x 6.74" Width x 9.5" Height
  • Weight: 17.6 pounds
  • Working temp.: -40ºC to + 65ºC (up to 149 degrees fahrenheit) (batteries: -10ºC)
  • 6-year warranty
  • Suitable for up to 27L engines
  • Vibration and shock resistant
  • Fully charged in 19 minutes (from empty state)

Ultracapacitors Key Facts & Benefits

Ultracapacitors, or supercapacitors as they are also
known, are an energy storage technology that
offers high power density, almost instant charging and discharging, lifetimes of 15+ years, and extreme reliability even in harsh conditions.
Fast energy storage, such as ultracapacitors, is increasingly important for the electrification of the largest industries in the world. Ultracapacitors help save energy and decrease emissions in automotive, transportation, grid, and industrial applications.
  • Very long lifetimes of more than 1 million charge cycles
  • A wide range of operating temperatures, from -40°C to +65°C
  • 30% more efficient than batteries
  • Zero maintenance
  • Up to 60 times the power density than achieved by batteries
  • No harmful chemicals or toxic metals, easy recycling


Installation Manual - CLICK HERE



Prop 65 Warning California Residents
WARNING: Cancer and Reproductive Harm -

Installation Manual - CLICK HERE