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Skeleton Technologies brings the necessary quality mindset to critical applications. The highest power density and efficiency in the industry provides us with a very clear competitive advantage.

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Stansilav Vizur
Strategic Purchasing
škoda Electric

SkelStart Engine Start Module 12V & 24V

A powerful module for reliable engine starting for large diesel engines under all weather conditions

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 , which makes it a perfect fit for bus, truck, rail and heavy equipment applications.

Main parameters

12 V / 2133 CCA* or 24 V / 1206 CCA*

  • Dimensions (L x W x H): 328 x 171 x 241 (mm)
  • Weight: 8.5 kg
  • Working temp.: -40ºC to + 65ºC (batteries: -10ºC)
  • Suitable for up to 27L engines
  • Vibration and shock resistant
  • Fully charged in 19 minutes (from empty state)
* Based on 1s ESR

SkelMod 17V Module

Robust power for wind, intralogistics, medical, and UPS applications

The SkelMod 17V 500F ultracapacitor module packs a lot of power in a small package. It's based on our SkelCap ultracapacitors with extremely low ESR.

The small size and strong aluminum housing design of the SkelMod 17V 500F module makes it ideal for use in a number of industries and applications including wind pitch control, AGVs and shuttles fast charging and medical UPS applications.

Main parameters

SMT17V500F

  • Voltage: 17V
  • Capacitance: 500 F
  • ESR: 1.86 mOhm
  • Specific power: 7.06 kW/kg
  • Specific energy: 3.6 Wh/kg

SkelMod 51V 177F Rail-Certified Module

Rail-certified, industry-leading power for automotive and transportation

The SkelMod 51V 177F ultracapacitor module packs a lot of power in a small package. It's based on our SkelCap ultracapacitors with extremely low ESR, which makes it possible for SkelMod 51V 177F to be used with minimal cooling.

The versatility of the SkelMod 51V module makes it ideal for use in a number of industries and applications including rail voltage stabilization and rail propulsion systems, regenerative power systems, and many more.

The module is certified according to EN 45545-2:2015 + A1:2013 standard for railway applications.

Main parameters

SMA51V177FAF

  • Voltage: 51 V
  • Capacitance: 177 F
  • ESR: 3.3 mOhm
  • Specific power: 12.3 kW/kg
  • Specific energy: 4.0 Wh/kg

SkelMod 51V 166F Module

A popular choice for fast energy storage in transportation applications

The SkelMod 51V 166F is a powerful ultracapacitor module with high power, IP65 protection, and a long lifetime.

The 51V166F module is popular especially in transportation applications, but due to its versatility, it's also in use in a number of industrial applications.

Main parameters

SMT51V166FAF

  • Voltage: 51V
  • Capacitance: 166 F
  • ESR: 5.3 mOhm
  • Specific power: 8.5 kW/kg
  • Specific energy: 4.1 Wh/kg

SkelMod 131V Module

Customized module with an active cooling system for medical & wind applications

The SkelMod 131V is a customized ultracapacitor module designed to fulfill the needs of our most demanding customers. The module is based on our SkelCap ultracapacitors with extremely low ESR and equipped with an integrated ultracapacitor management system for effective cell balancing, analog alarm signal outputs & LED status indicators.

SkelMod 131V is an ideal solution for a number of industries and applications including MRI power quality in medical industry, wind pitch control and kinetic energy recovery for the elevator industry.

Main parameters

SMA131V6F

  • Voltage: 131 V
  • Capacitance: 6.7 F
  • ESR: 62 mOhm
  • Specific power: 69.2 kW/kg
  • Specific energy: 56.7 Wh/kg

SkelMod 171V 5.8F Module

A compact, high-power module for renewable energy and industrial applications

The SkelMod 171V 5.8F ultracapacitor module is ideal for applications such as wind turbine pitch control and industrial applications.

The 171V module is a more reliable alternative for 160V modules on the market for high voltage pitch control applications where multiple modules are used in series. The higher module voltage in the same form factor will greatly increase the product lifetime when compared to alternatives on the market.

Main parameters

SMT171V5.8FAF

  • Voltage: 171V
  • Capacitance: 5.8 F
  • ESR: 150 mOhm
  • Specific power: 9.37 kW/kg
  • Specific energy: 4.5 Wh/kg

Our technology

Based on a patented raw material, Curved Graphene, Skeleton's energy storage technologies open up completely new applications for hybridization and electrification.
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