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Autowit Super Capacitor Jump Starter, 12V Batteryless Jump Starter, 8.0 Gas&4.0 Diesel Car Jump Starter, Portable Jump Starter for Car Battery, Bulit-in Supercapacitor, No Need Pre-Charge

  • Based on 2,796 reviews
Condition: New
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Dec 28
Order within 27 minutes
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Style: SuperCap 2


Features

  • NEVER REQUIRES REGULAR CHARGINGSuperCap 2 features built-in supercapacitors. NO NEED PRE-CHARGED at home. It just takes a few minutes to get started from your weak batteries when you use it.
  • HEAVY DUTY SUPERCAP JUMP STARTERUnique supercapacitor technology makes SuperCap 2 easier to use. And it has a longer lifespan than traditional battery car jump starters. Under normal use, it can be used more than 100,000 times.
  • ULTRASAFE PROTECTIONSuperCap2 is physically active to keep users away from the risk of sparks or explosions. No worries any more about reverse polarity charging, overcuurent, overload, overvoltage etc.
  • MERGENCY LIFE SAVERSuperCap 2 can work in extreme environments (-40C or 70C). It has four charging methods and only takes a few minutes to charge. Whether it's a blizzard or extremely hot weather, you can handle it with ease.
  • POWERFUL 12 VOLT CAR JUMP STARTERUp to a 800A peak current, SuperCap 2 can start the vast majority gasoline engines and diesel engines up to 4.0L in just a few minutes. This includes cars, tractors, motorcycles, RVs, pickups , weeders, snowmobiles and many more.
  • 100% SATISFACTION GUARANTEEYour satisfaction is important, so please contact us when you encounter any problems. We have free return/replacement policy to protect each buyers rights.

Brand: autowit


Product Dimensions: 4.52"D x 10.43"W x 1.77"H


Amperage: 800 Amps


Peak Output Current: 800 Amps


Manufacturer: autowit


Item Weight: 2 Pounds


Item Dimensions D x W x H: 4.52"D x 10.43"W x 1.77"H


Amperage: 800 Amps


Battery Capacity: 12 Volts


Peak Output Current: 800 Amps


Voltage: 12 Volts


Compatible with Vehicle Type: Motorcycle, Tractor


Manufacturer: autowit


Brand Name: autowit


Manufacturer Part Number: autowit


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Dec 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Perfect. Have truck, will crank. Tanks! I mean, Thanks!
Style: SuperCap 2
Update #3: Have not needed to use it since last edit but it connects & loads up using any & all of the included connectors. I’ve even used my little 10w USB solar panel. (Took forever for reasons obvious). All worked & when I tested each, used the truck & it was ready to go. So no issues. Works as stated. Works well. The only variables are the vehicle & the user. Aside from a tiny solar who-cares-what-you-have-going-on-today panel, each method you use determines your charge time. It’s math. It works. Buy it. Just double check your connections like I didn’t. Wink-wink. Vanlifer tip for those with steeds & iffy electrical systems: Load it with your USB pack whenever you park. If you occasionally need a jump but think often enough you might need one every time, this practice will ensure less downtime when you have to go but ‘Damn! Three days since last jump. Trickled down to 20%, USB battery, yikes! I’ll be on the road in forty five minutes, not 2.5! Damn damn! :insert Doc Brown facial expression: So, shortly; Have a weak electrical system? Buy this & habitually connect it to your USB battery pack on parking. Less downtime. Update #2: I gave it a day. Out of frustrated fairness, I gave it another go. Connected to a charged battery this time. Used only the jumper connector to turn it on. Worked. Seems intermittent. Unsure of cause. Will continue use as needed & update review as my experience evolves. Update #1: It’s been a few short months & it no longer works. It will charge but not begin the countdown when the button is pressed. Damn waste of homeless guy funds! Original review below: The BEST thing about this is that it will crank a light truck. Others I looked at won’t work very well with even my little 4.6L motor. When I was experiencing an electrical issue, this helped me stay moving until I found the issue. It’s light, so easy to stow, carry, and retrieve out of your VEDC. Simple to use. Very few connections. It’s literally plug (or pinch) & play. & in the event you have a tragically low battery, you can even prime this thing with your cell phone charger or a portable USB battery. Takes longer but it works. One-person use with a ‘beep’ loud enough to hear inside your car if it’s freezing outside while you wait for it to charge. And it’s tough. With no battery in it, you don’t have to worry about handling it like you would a lithium ion or a lead acid battery jump starter. ... show more
Reviewed in the United States on April 22, 2021 by Saruvan the White…hightop

  • Some non-discussed limitations, but a great tool you can keep in your car daily
Style: SuperCap 2
TLDR; I have no reason to believe it wouldn't work for its primary intended purpose...jump starting a discharged but otherwise still healthy battery. Discussion: I bought this less than a month ago, and hoped not to need to use it for a while. But the wife's car wouldn't start abruptly last night away from the house, so I met her with this tool and a battery tester. First I followed the instructions, and it took about 3 minutes for it to fully charge. We hit the red button, and it had a ten second countdown timer (it beeps every second for that time, helpful in the dark). We tried starting the car, and the battery/super capacitor combo still didn't provide enough power to engage the starter. I re-positioned the cable clamps on the terminals to ensure a good connection, and checked the other end on the capacitor to ensure it was well connected into the super-cap (it was). Second test, same result. I hooked up the battery tester, and the test revealed a bad cell in the battery, which would explain why the super cap didn't make the expected difference. Replacing the battery fixed the problem. So what I learned is 1) if you have a battery tester (I use the Konnwei KW208, highly recommended), I'd suggest checking the battery condition before attempting to jump start with the super cap to see if you have a bad cell or other battery viability problem (especially if outside temps are at highs or lows), and 2) don't expect the super cap to be able to jump a car with a physically compromised battery (like a bad cell); a damaged battery isn't the same as a simply discharged battery. I gave the super cap high ratings because it appeared to work as designed, meaning the display kept me informed on charging status, operation processes, and ending (discharged state). It is small enough to carry on trips, and has good environmental temperature tolerances so it can be left in the car. All items advertised were included (super cap, battery cable, cigarette charger, USB cords, and carrying case) all arrived with the order in new condition, and the finish of all provided was without noticeable flaws. ... show more
Reviewed in the United States on August 16, 2024 by Desert Dweller

  • GET ONE NOW.
Style: SuperCap 2
This is amazing. It's really incredible. Works great and as intended. I always have it in my trunk for me or if someone needs a jump.
Reviewed in the United States on November 17, 2024 by José Núñez

  • Great supplement gear but not as reliable as NOCO boost plus
Style: SuperCap 2
Got this item after reading about how great it was because needs no batteries and technology based on draw the little power left in car battery. However be forewarned won't work if your battery is completely dead or drawn down. I encountered this situation after wife left car light on and triggered alarm such that the car was burping for hours by time I got to it. With less than 0.1 amps and faint signs of life, even this Autowit couldn't suck enough life to get this capacitor filled to any substantial level even after 20 min. So might work most of time but not in all situations. At least this can be left in your car because there's no unit batteries to go bad. But I used a NOCO boost plus in reserve that saved my day. ... show more
Reviewed in the United States on December 4, 2024 by George

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