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

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Details

Brand
autowit
Product Dimensions
4.52"D x x
Amperage
800 Amps
Peak Output Current
800 Amps
Manufacturer
autowit

⚡800A peak current

🔋100,000+ jump starts lifespan

❄️Works from -40°C to 70°C

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Description

⚡ Jumpstart your confidence—power up anywhere, anytime!

BUILT TO OUTLAST - Supercapacitor tech delivers 100,000+ reliable jump starts—far beyond traditional batteries.
SAFETY FIRST ALWAYS - Advanced protections guard against sparks, reverse polarity, and overloads for worry-free use.
VERSATILE JUMP STARTER - 800A peak current powers gas engines up to 8.0L and diesel up to 4.0L—cars, trucks, motorcycles & more.
EXTREME WEATHER WARRIOR - Performs flawlessly from freezing cold to scorching heat—your ultimate roadside ally.
INSTANT POWER ZERO WAIT - No pre-charging needed—jumpstart your ride in minutes, anytime.

The autowit Super Capacitor Jump Starter is a compact, batteryless 12V jump box featuring cutting-edge supercapacitor technology. Delivering up to 800 amps peak current, it reliably starts gas engines up to 8.0L and diesel engines up to 4.0L without any pre-charging. Designed for extreme temperatures (-40°C to 70°C) and equipped with comprehensive safety protections, it offers over 100,000 jump starts lifespan, making it a durable, ready-anytime emergency power solution for vehicles.

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