Typical price
$90-130
Key spec
Supercapacitor, battery-free; up to 8.0L gas / 4.0L diesel; ~10yr lifespan
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Autowit SuperCap 2 Batteryless Supercapacitor Jump Starter
Batteryless supercapacitor jump starter that charges itself in minutes from your weak battery, alternator, USB or another source, then jumps the car; stores no lithium charge to age out.
Quick verdict
The differentiator / premium-niche pick — holds no charge so it never dies in the glovebox, isn't damaged by heat/cold, and lasts ~10 years. Ideal leave-it-in-the-car unit that's always ready.
Who it's for
Buyers who hate maintaining a charge, live in extreme climates, or want an always-ready trunk unit.
Key features
- Supercapacitor, battery-free
- up to 8.0L gas
- 4.0L diesel
- ~10yr lifespan
What to know before you buy
- Must draw from a power source for a few minutes before it can jump, so it's not instant-from-empty like a charged lithium unit, and it can't double as a phone power bank.
How we picked this
Chosen from manufacturer specs and public research — no paid placement, and no hands-on testing we didn’t do, so there are no invented reviews or numbers here. Specs and prices vary by model and change over time, so confirm your exact one on the Amazon listing.
How we work →The Best Portable Jump Starters
A lithium jump pack is the one piece of car gear that pays for itself the first time your battery dies. Here's how to pick the right one — and which we'd buy.
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