Can I use this if my car battery is completely dead and shows 0V?

No, if the voltage drops below 1V, jump starter won’t be able to start the engine. When the battery is completely drained, the capacitor can’t charge. Please make sure your car battery still has a minimal amount of power left.

Can I use this for a hybrid car?

We designed this product for 12V gasoline cars up to 8.0L and diesel cars up to 6.0L. Since hybrid vehicles use different types of batteries and we haven’t tested them all, we don’t recommend using it with hybrid cars.

How long does the charge last if I charge it in advance?

Unlike lithium batteries, capacitors can’t hold a charge for long. Even when fully charged, they naturally discharge within 1–2 days. You don’t need to charge it beforehand—just connect it to the power source (your car battery) when needed.

I pressed the start button but the device doesn’t work. What should I do?

Autowit jump starter only works when it’s fully charged by connecting to your car battery. Please check if the product is fully charged and make sure your car battery still has some power left for the startup process.

Does this product have a flashlight or phone charging function?

No, Autowit jump starter uses a capacitor, which doesn’t store power like a battery. It’s designed solely for jump-starting vehicles and doesn’t support additional features like lighting or charging mobile devices.

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Super Capacitor Jump Starter, 12V Batteryless Portable | Jumper Cables for 8.0 Gas & 4.0 Diesel Car, Built-in Supercapacitor, No Need Pre-Charge

Product ID: 211514760

Details

Battery Cell Composition
Lithium Ion
Brand
autowit
Product Dimensions
4.52"D x x
Vehicle Service Type
Motorcycle
Voltage
12 volts

⚡800A peak current

🌡️Operates -40°C to 70°C

🛡️Ultrasafe spark & overload protection

€ 209.68

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Jumpstart your journey—power up instantly, anywhere, anytime!

BUILT TO OUTLAST - Supercapacitor tech delivers over 100,000 reliable jumps—far beyond traditional starters.
COMPACT POWERHOUSE - Lightweight and pocket-sized for effortless storage and emergency readiness on the go.
SAFETY FIRST ALWAYS - Advanced protections guard against sparks, reverse polarity, and electrical overloads.
EXTREME WEATHER WARRIOR - Performs flawlessly from freezing cold to scorching heat—your all-season lifesaver.
INSTANT POWER ZERO WAIT - No pre-charging needed—jumpstart your ride in minutes, even from a weak battery.

The Autowit Super Capacitor Jump Starter is a cutting-edge 12V portable device featuring a built-in supercapacitor that requires no pre-charging. Delivering up to 800A peak current, it reliably jumpstarts gasoline engines up to 8.0L and diesel engines up to 4.0L. Designed for durability, it supports over 100,000 jumps and operates safely across extreme temperatures (-40°C to 70°C). Compact and lightweight, it’s the ultimate emergency power solution for motorcycles, cars, tractors, and more.

Specifications

ASIN	B086L29DL9
Amperage	800 A
Battery Capacity	12 volts
Battery Type	Lithium Ion
Best Sellers Rank	#18,684 in Automotive ( See Top 100 in Automotive ) #134 in Jump Starters
Brand Name	autowit
Compatible with Vehicle Type	Motorcycle, Tractor
Customer Reviews	4.4 4.4 out of 5 stars (2,704)
Item Dimensions D x W x H	4.52"D x 10.43"W x 1.77"H
Item Weight	2 pounds
Manufacturer	autowit
Manufacturer Part Number	autowit
Peak Output Current	800 A
Unit Count	1 Count
Voltage	12 volts

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€ 209.68

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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