BUTURE 4000A Portable Car Jump Starter, 12V Battery Booster for 8.5L Diesel / 9.0L Gas, Power Bank, 4-Mode LED Light
BUTURE 4000A Portable Car Jump Starter, 12V Battery Booster for 8.5L Diesel / 9.0L Gas, Power Bank, 4-Mode LED Light
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BUTURE

BUTURE 4000A Portable Car Jump Starter, 12V Battery Booster for 8.5L Diesel / 9.0L Gas, Power Bank, 4-Mode LED Light

4.4 stars out of 122 reviews
(4.4)|
122 ratings

Key item features

  • Powerful Engine Start: Delivers a 4000A peak current to jump-start 12V vehicles, including 8.5L diesel and 9.0L gas engines, ensuring reliable performance for various situations.
  • Ultra-Portable Design: Weighing only 0.8 lbs, this compact device is as light as a smartphone, easily fitting into a glove box or backpack for convenient transport.
  • Advanced Safety Features: Incorporates eight built-in protections, such as spark-proof and reverse polarity, with clear beeps and indicator lights for safe and easy operation.
  • Rapid Device Charging: Equipped with USB Quick Charge 3.0 and 5V/2.1A ports, it charges phones and tablets up to 60% faster than standard chargers.
  • Versatile LED Illumination: Features a 4-mode LED light, including steady, flashing, SOS, and orange warning modes, for visibility and assistance in low-light conditions.
  • Integrated Power Bank: Functions as a 16800mAh power bank, providing ample power to charge essential electronic devices on the go.
  • Rugged Weatherproof Build: Designed to be rugged and weatherproof, making it suitable for travel, camping, and emergency situations.
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was $79.99
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4.592339261285909 stars out of 5, based on 731 seller reviews(4.6)
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About this item

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Customer ratings & reviews

4.4 out of 5 stars
stars122 ratings42 reviews
How item rating is calculated
  1. 5 stars74% (90)
  2. 4 stars11% (13)
  3. 3 stars2% (3)
  4. 2 stars5% (6)
  5. 1 star8% (10)

Reviews summary

Pros
  • : Can be used without electricity when fully charged.
Cons
  • : Unable to hold charge for extended periods or multiple uses.
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Showing 1-3 of 42 reviews

Nov 1, 2025
Michael
Sold byUTRAI Official StoreDelivered byWalmart
5 out of 5 stars review

Verified Purchase

It keeps jumping until you give up

We tried this for the first time on our kid's car. We didn't understand that their car battery was toast, so tried the Battery Jumper a number of times. Car would start. We would unhook charger. Car would stop. Repeat. Repeat. The Battery Jumper had a good sense of humor and kept firing up the car. We tried all variations, but someone sitting in the car giving it gas worked best — still failed as soon as the assistant stopped coaxing the car to run. It needed the alternator to be running. Best move was to call AAA for a new battery delivery! But the Battery Jumper performed above and beyond the call of duty until we finally gave up. I recommend it!

Helpful?6R4JBCGTR9FP14931710041
Jul 3, 2025
Maurice
Sold byUTRAI Official StoreDelivered byWalmart
5 out of 5 stars review

Verified Purchase

I haven't had a chance to use it but it appears to be a very good unit. I like the light that's on it to be able to see what I'm not doing right. The battery level LEDs would really help and it's rechargeable via USB.

Helpful?6R4JBCGTR9FP14931710041
Nov 20, 2025
Cory
Sold byUTRAI Official StoreDelivered byWalmart
5 out of 5 stars review

Verified Purchase

I drive a 2002 Tahoe and the battery is so dead it won't even hold a charge and this thing jump on the first crank every time for about 6 or 7 times until I got a new battery

Helpful?6R4JBCGTR9FP14931710041