Autowit SuperCap 2 Battery-less Car Jump Starter Orange 800A 12V Portable Jump Box for Extreme Weather
Autowit SuperCap 2 Battery-less Car Jump Starter, 800A 12V Portable Jump Box, No Pre-charging Needed, Built-in Supercapacitor for Extreme Heat & Cold
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Autowit

Autowit SuperCap 2 Battery-less Car Jump Starter, 800A 12V Portable Jump Box, No Pre-charging Needed, Built-in Supercapacitor for Extreme Heat & Cold

130 ratings
Autowit SuperCap 2 Battery-less Car Jump Starter, 800A 12V Portable Jump Box, No Pre-charging Needed, Built-in Supercapacitor for Extreme Heat & ColdAutowit SuperCap 2 Battery Less Portable Car Jump Starter Carrying Case Bulit in Supercapacitor Regular Charging Long Lifespan Work Extreme Environme
SizeSuperCap 2

Key item features

  • Capacitor Technology: The SuperCap 2 utilizes supercapacitor technology, eliminating the need for pre-charging and offering a lifespan of over 100,000 uses, surpassing traditional battery jump starters.
  • Enhanced Safety: Featuring a built-in supercapacitor and no internal battery, this jump starter activates physically, mitigating risks of sparks or explosions, and includes mistake-proof design for safe 12-volt car battery connections.
  • Extreme Durability: Designed to operate in harsh conditions, the SuperCap 2 functions effectively in temperatures ranging from -40°C (-40°F) to 70°C (158°F), making it suitable for diverse weather challenges.
  • Powerful Performance: With an 800A peak current, it can start most gasoline engines and diesel engines up to 4.0L, including cars, tractors, motorcycles, and RVs, within minutes.
  • Versatile Charging: It offers four charging methods, including direct charging from a weak car battery, another car battery, a cigarette lighter socket, or a power bank, with varying charge times.
  • Broad Compatibility: This device is compatible with 12V batteries in various vehicles, such as motorcycles, tractors, and motorboats, and can handle up to 7.0 liters for gasoline cars and 4.0 liters for diesel cars.
  • Included Accessories: The package contains the SuperCap 2 Jump Starter, a carrying case, a cigarette lighter adapter, alligator clamps, a USB charging cable, and a user manual.
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About this item

Product details

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Customer ratings & reviews

4.4 out of 5 stars
stars
130 ratings81 reviews
How item rating is calculated
  1. 5 stars72% (93)
  2. 4 stars14% (18)
  3. 3 stars5% (7)
  4. 2 stars1% (1)
  5. 1 star8% (11)

Reviews summary

Pros

  • : Made with solid construction.
  • : Simple and quick to use and charge.
  • : Offers simplicity at a cost that is not overly expensive.
  • : Comes with easy to understand guidance.

Neutral

  • : Can be rapid, but may not hold charge consistently.

Cons

  • : Needs frequent recharging for optimal performance.
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Showing 1-3 of 81 reviews

Aug 23, 2026
Reviewer name: Steve
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Works as described.

I made my car battery dropped to 9V that couldn't start. Then use it to jump start without problem. I tried to use USB or cigarette lighter plug to charge it to 100%, then it won't go to Power on mode. They said since the jump starter cables hadn't connected to any bad battery, so the safety function stopped it to go to Power on mode. Anyway connect it to a near died car battery can charge it up to 100% & go to Power on mode, then can start the car again.

International review
Review from walmart.ca
Helpful?38DZACMPR0K0481925335
Sep 19, 2026
Reviewer name: Nick S
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Autowit SuperCap2 Works Great!!

Works great. I charged and started up a Honda CR-V in less than 5 minutes.

International review
Review from walmart.ca
Helpful?38DZACMPR0K0481925335
Jan 31, 2026
Reviewer name: kar
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Autowit SuperCap 2

Have used with a variety of vehicles in a variety of weather conditions including to start a car in -25. Works very well and much easier to use than traditional cables. Would purchase again.

International review
Review from walmart.ca
Helpful?38DZACMPR0K0481925335
Current price is Now $98.32
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was $185.99
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