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

Autowit Super Capacitor Jump Starter, 12V Batteryless Portable Jump Box, Jumper Cables for 8.0 Gas&4.0 Diesel Car, Portable Jump Starter for Car Battery, Bulit-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

🔋Built-in supercapacitor, no pre-charge needed

❄️🔥Operates from -40°C to 70°C

$242.24

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Jumpstart your freedom—power up instantly, wherever life takes you!

SAFETY FIRST ALWAYS - Advanced spark-free, reverse polarity, and overload protection for worry-free emergency starts.
UNMATCHED DURABILITY - Over 100,000 jump starts with heavy-duty supercapacitor tech—built to outlast traditional starters.
EXTREME WEATHER READY - Reliable performance from icy winters to scorching summers, so you’re never stranded.
INSTANT POWER ON DEMAND - No pre-charging needed—jumpstart your ride in minutes, anytime, anywhere.
VERSATILE VEHICLE COMPATIBILITY - Supports gasoline engines up to 8.0L and diesel up to 4.0L—perfect for cars, motorcycles, tractors, and more.

The Autowit Super Capacitor Jump Starter is a cutting-edge 12V portable jump box featuring a built-in supercapacitor that requires no pre-charging. Delivering up to 800 amps peak current, it reliably jump-starts gasoline engines up to 8.0L and diesel engines up to 4.0L. Designed for extreme temperatures (-40°C to 70°C) and over 100,000 uses, it offers superior durability and advanced safety protections, making it an essential emergency tool for modern drivers.

Specifications

ASIN	B086L29DL9
Amperage	800 Amps
Battery Capacity	12 Volts
Battery Cell Composition	Lithium Ion
Battery Type	Lithium Ion
Best Sellers Rank	#22,517 in Automotive ( See Top 100 in Automotive ) #149 in Jump Starters
Brand	autowit
Brand Name	autowit
Compatible with Vehicle Type	Motorcycle, Tractor
Customer Reviews	4.4 out of 5 stars 2,696 Reviews
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 Amps
Product Dimensions	4.52"D x 10.43"W x 1.77"H
Unit Count	1.0 Count
Vehicle Service Type	Motorcycle, Tractor
Voltage	12 Volts

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$242.24

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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