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autowit

autowit SuperCap 2 Lite 12V Battery-Less Portable Jump Starter, Bulit-in Supercapacitor, No Regular Charging, Long lifespan, Work in Extreme Environment

    • Based on 2,324 reviews
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Style: SuperCap 2 Lite


Features

  • NO NEED REGULAR CHARGESuperCap 2 lite features built-in supercapacitors. NO NEED PRE-CHARGED. It only needs a quick charge from your weak batteries when you use it.
  • HEAVY DUTY SUPERCAP JUMP STARTERUnique supercapacitor technology makes SuperCap 2 lite 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 lite is physically activated to keep users away from the risk of sparks or explosions. No worries any more about reverse polarity charging, overcurrent, overload, overvoltage, etc.
  • MERGENCY LIFE SAVERSuperCap 2 lite 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 700A peak current, SuperCap 2 can start gasoline engines up to 5.0L and diesel engines up to 4.0L in just a few minutes. This includes cars, sedan, motorcycles, SUV, Truck , Weeder, 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


Voltage: ‎12 Volts


Vehicle Service Type: ‎Motorcycle, Truck


Battery Capacity: ‎12 Volts


Item Weight: ‎2 Pounds


Amperage: ‎700 Amps


Peak Output Current: ‎700 Amps


Product Dimensions: ‎10.4"D x 4.5"W x 1.78"H


Model: ‎S2-5.0


Item Weight: ‎2 pounds


Item model number: ‎S2-5.0


Manufacturer Part Number: ‎autowit


Special Features: ‎Cigarette Lighter*1, USB Charging Cable*1, User Manual*1, Alligator Clamps*1, 1-Year Warranty, SuperCap 2 Lite Jump Starter*1


Date First Available: October 20, 2020


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Top Amazon Reviews

    • Safe with a Prius hybrid!
Review Image by kidtree kidtree
I thought I would own this item for a year or more before I needed it, but less than 3 days after it arrived, I found my Prius's 12V battery was too low. I got lots of info on the dashboard, but it refused to start. I'm lucky that my 2020 Prius e-AWD has the battery right up front in the engine compartment, like any other car. (My older one had the 12V battery hiding deep under the cargo compartment, behind the rear seat. That location would have made the Autowit even more convenient, compared to stretching jumper cables from another car.) I removed the Autowit and the main booster cable set from the zippered case. The other items in there are just for charging from another source if my car battery is really far gone. A flexible rubber cover protects all the ports and the power button on the Autowit. The blue plug that fits into the side of the booster is marked + and - to match markings on the unit, and the plug is shaped so it only fits one way. I didn't have to press any switch; as soon as I connected to the battery (red to red and black to black, like any other jumper cables) the unit beeped and began charging from the car battery. The display in the top edge of the front of the booster is very small, but crystal-clear and steady. I had to slow down my camera shutter to get it to show the whole display - the the naked eye it isn't blurred at all. The Prius hybrid has a much smaller 12V battery than most cars, since it only needs to fire up a small gas engine. Mine was down to 9.8 volts, low enough for the car to refuse to attempt to drive. I didn't time how long it took to fully charge the Autowit's capacitor. It seemed like forever, but was probably 8 - 10 minutes. That little display counted up 1% at a time, while it reported the battery voltage dropping slowly to 8.0V. Having that display makes it obvious that I'm waiting for it to charge, and that it's going fine. At 100% the booster beeped. The beep is so quiet (to my 70 year old ears) that I didn't try to hear the long beep that tells me the 10-second timer is up. After the "ready" beep I pressed the small red button to get ready to start (the only button on the unit), and I just counted 10 seconds while walking around to the door and sitting, before starting the car normally. And it worked! BUT THE PRIUS STARTED THE ELECTRIC DRIVE SYSTEM ONLY. The dashboard showed the car was up and running, but it was silent - it hadn't started the gas engine. I pressed the gas pedal to force the car to start the gas engine (still in Park), and it fired up and began charging all the electrical stuff. After a few seconds of running I got out and went back to the Autowit. That little display told me the car battery was now being charged at 13.8V, exactly what you expect in any 12V car system. I have AAA, and calling for a jump start would have been free, but I would have waited most of an hour at best to see my rescuer. I have a battery thing that provides 110V AC and 12V DC, but it's too small to provide the big, sudden current needed to start a car. It would have blown a fuse. I could buy a bigger battery-based jump starter, but those are big & heavy, and they need to be kept charged if their going to be any use. Maybe plug it in overnight once a month. Just fine if you start dead cars for a living, like the AAA guy, but if I never used mine, I'd forget, and when I needed it a year later, it would be dead. This Autowit is built to not need charging until it's needed, and then it charges itself off your low battery. (That's not some new miracle electronic circuit. Voltage multipliers have been around for decades. This is a perfect application for it.) If my car battery was so dead that it couldn't charge the Autowit, I could still use that battery power unit to charge my Autowit, or even my power bank for recharging my smartphone. That would have been very slow, but could save me out on some logging road, far from cell service. And I can feel better about helping others with dead batteries. Toyota warns that the Prius has thousands of dollars worth of computers controlling the engine, and connecting it to some old beater with a dead battery might kill my car, resulting in a very expensive repair after getting it towed. But I can quickly charge the Autowit from my running car, disconnect it from my battery, and carry it over the the "victim" car for a quick & easy start, without ever endangering my car with electrical noise from the other. I still need to learn why my car battery got so weak. Probably my dash cam system constantly recording while the car is parked. (VanTrue N4 3-channel system with optional GPS camera mount) Or maybe Toyota's latest software update is causing the car's computers to drain power - seems less likely. But whatever is draining my battery, the Autowit rescued me easily, automatically, and relatively quickly. I'm very glad I bought it, and it's going to live in my car for as long as I have it. *** EDIT *** I was going to contact Autowit about my ling charge time, compared to other reviewers, but decided to test it first, so I would be armed with actual times and photos. I left my car parked and off, and turned on the headlights to drain the battery, testing it with my voltmeter. When it was well below 10V I tried to start the car normally. It refused, giving me the same low voltage message I had seen before. I hooked up the Autowit and watched its display of battery voltage and capacitor charge %. Starting from 17% charge (residual from previous use, I guess), it reached 100% in about 3.5 minutes, much better than my first experience. I pressed the button on the unit, got into my car while I counted 10 seconds, and started the car. Perfect. Again, it came to life in Electric mode, so I pressed on the gas (still in Park) to force it to start the engine. I let it run while I got out and disconnected the Autowit, closed the hood, and went on my errands. Another benefit: I never saw any spark when I connected or disconnected the cables to my battery, both times that I used it. Using standard jumper cables and another car is a bit scary, because you sometimes generate big sparks when the cables touch the battery poles. Since a dying car battery often vents hydrogen gas, that's scary. The hydrogen can burn, and it it burns inside the battery, it can explode. That's not common, but it can happen, and can burn your skin, eyes, and clothes with flying sulphuric acid. To avoid that I learned early to hook up the + (red) side first, then connect the - (black) clamp to some heavy metal bracket on the engine. It's always the second connection that will spark, at either car, and making that second connection on some part far from the battery can save you from an awful mess. But that's with normal jumper cables. I never saw even a tiny spark from the Autowit cables, while connecting, or removing them. ... show more
Reviewed in the United States on August 15, 2023 by kidtree kidtree
    • This product saved my fishing trip! Must have in your truck or even better in your boat.
So I load my boat in the water and attempt to start my 2007 Mercury 60 four stroke and my battery is dead. Turn the key four or five times and nothing. I did notice that my fish finder was on, so it must have drained my battery being on for a few weeks or more. Of course I did have two other batteries up front but that would have taken longer to one of those out then just go home and charge the battery for a few hours. But then I remember I had this under the truck seat. Never used it yet and it was sitting under my truck seat for almost two years. I hooked it up and I don't know if I goofed up the first time but it didn't start up the first time. Then I recharged it again and this time I looked at the little screen and pushed the button which I don't remember if I did that the first time. But I saw the screen saying something like discharging and the percentage was going down. So I got to the console and turned the key and it started right. I was like...damn that paid itself back already. I only drove a little ways up the Mississippi River for several minutes and decided to fish close in case I couldn't get is started again. Went to start it without this capacitor and the motor would not start since I didn't drive enough to recharge the battery. I hooked up the capacitor again and it started right up again. Now knowing this capacitor could restart this motor I drove a lot farther down the river and I didn't need it again since the battery was charged enough now with the long ride. But, I am thankful to have this product in my truck as it did save the day. Oh yeah, I did know about the rope inside my cowl. But, when I lifted my cowl of I realized that I would have to remove several large bolts of the motor before I could wrap the rope around it and that was too much of a hassle. ... show more
Reviewed in the United States on August 22, 2023 by Amazon Customer
    • Works great (3-5 minutes charging) if your Hybrid's 12V 'dead' battery has >8V
Style: SuperCap 2 Lite
SUMMARY: For those driving a hybrid and stuck with a 'dead' 12v 30-40 AH battery, consider using a 20V USB-C PD 100w powerbank port (usually for back-up power of laptops) along with a USB-C male to 5mm x 2.1mm barrel adapter as a supplementary unit (for quick charging the AUTOWIT). INCIDENT DETAILS: Accidentally left my 2012 Honda Civic Hybrid's hazard lights on (headlights were off) yesterday afternoon for ~ 4 hours at a stretch; came back to find the blinkers erratically blinking, which soon drained the 12V battery flat. Used the AutoWit Superlite 2 but it charged up-to 5.1V and 2% after 20 mins of waiting. It was not going to work. So, I connected a 20,000 mah Mi powerbank through a USB-A to micro-USB cable to Autowit's USB-micro port (wish it had a USB-C port). This took another ~ 30 mins to charge but only up-to 4.9V and 50 %.; I couldn't wait. So, got it up-to 13.2V and 100% (within a minute) through the car battery of an acquaintance and the Civic started instantly on the first crank. Drove the vehicle for about an hour thereafter and turned off the engine. The 12V battery was checked yesterday and today morning; it functions normally with a reading of 12.8V with the engine turned off and charging normally up-to 14.4V. This got me thinking (and hence the following advice to those who plan on buying an AUTOWIT unit). Since, AUTOWIT provides a 12V 5mm x 2.1mm circular DC input port (but USB-C input port), why not buy a USB-C male to 5mm X 2.1mm male 100w PD adapter [ex. https://www.amazon.com/CERRXIAN-Female-Charging-Adapter-5521a-100w/dp/B08N64W7Z9?th=1] and make use of the powerbank's 20V 5A (100w) USB-C port for quicker charging. ... show more
Reviewed in the United States on July 25, 2023 by JoseAnt

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