TENKER 4000A Car Jump Starter- 12V Battery Charger for 7.2L Gas & 5.5L Diesel Engines,with USB Ports, LCD Display and LED Light
TENKER 4000A Car Jump Starter- 12V Battery Charger for 7.2L Gas & 5.5L Diesel Engines,with USB Ports, LCD Display and LED Light
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TENKER

TENKER 4000A Car Jump Starter- 12V Battery Charger for 7.2L Gas & 5.5L Diesel Engines,with USB Ports, LCD Display and LED Light

96 ratings
TENKER 4000A Car Jump Starter- 12V Battery Charger for 7.2L Gas & 5.5L Diesel Engines,with USB Ports, LCD Display and LED Light2000A Car Jump Starter 12V Battery Charger for 7 2L Gas 5 5L Diesel Engines with USB Ports LCD Display and LED Light
Size4000A

Key item features

  • Powerful Engine Start: Delivers 4000A peak current, jump-starting 12V vehicles with up to 7.2L gas or 5.5L diesel engines in seconds.
  • Advanced Safety Protection: Incorporates 10 safety technologies, including spark-proof, over-current, and reverse-polarity protections, for secure operation.
  • Versatile Device Charging: Features USB (5V/2A) and Type-C (5V/2A 9V/2A) ports to charge electronic devices on the go.
  • Integrated LED Light: Equipped with a bright built-in LED light for emergency situations, nighttime repairs, or outdoor use.
  • Portable Compact Design: Measures 6.3x3.1x1.6 inches and weighs 0.86 lbs, ensuring easy storage and portability.
  • User-Friendly Operation: Starts dead vehicles in three simple steps, designed for easy use by anyone.
  • Broad Vehicle Support: Powers diverse 12V vehicles including cars, trucks, motorcycles, boats, SUVs, and snowmobiles.
  • Informative LCD Display: Provides clear status updates via an integrated LCD display, enhancing usability.
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Specs

Battery capacity, 20000 mAhAmps, 4000 AAutomotive battery type, Lithium BatteryBrand, TENKERPower type, BatteryCable length, 40 in

About this item

Product details

This 4000A Car Jump Starter is designed to provide reliable power for all 12V vehicles, including cars, trucks, motorcycles, boats, SUVs, lawnmowers, and snowmobiles, capable of starting up to 7.2L gas and 5.5L diesel engines. It features multiple USB ports for charging your electronic devices on the go, a bright built-in LED light for emergencies or night-time repairs, and an LCD display for clear status updates. Equipped with 10 advanced safety technologies, including spark-proof and reverse-polarity protection, this compact and lightweight unit ensures peace of mind and easy operation, making it an essential tool for any vehicle owner.
  • High-Quality Performance 4000A peak current, the can jump-start almost all 12V dead vehicles (up to 7.2L gas or 5.5L diesel engines) in seconds, providing reliable performance when you need it most. Remember to press the BOOST BUTTON when your car is completely dead.
  • Unmatched Safety FeaturesOur jump starter battery pack is equipped with 10 advanced safety technologies, including spark-proof/ over-current/ short-circuit/ overload / over-voltage/ over-charge/ reverse-polarity/ low-temp/ high-temp/ reverse-charge protections, ensuring your peace of mind during every use.
  • Multi-FunctionalityCar Starter is designed withwith USB OUTPUT (5V/2A) and Type-C INPUT (5V/2A 9V/2A),to charge your electronic devices on the go, keeping you connected wherever you are, and equipped with a built-in bright LED light for emergency situations, night-time repairs, or camping trips.
  • Compact & Easy to UseDesigned for convenience, The portable car jump starter is 6.3 inch*3.1 inch*1.6 inch, the weight is 0.86lbs, to fit in your glove compartment or backpack. Only 3 steps needed to start a dead vehicle, making it easy for anyone to use and an essential travel companion .
  • What You Will GetProvides reliable product, 24 months of hassle-free service and lifetime technical support. The package include 1*Jump Starter, 1*Intelligent Jumper Clamps, 1* USB Line, 1*User Manual. Please feel free to contact us if you have any questions or if you are facing any issues with this jump box.
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Specifications

Battery capacity

20000 mAh

Amps

4000 A

Automotive battery type

Lithium Battery

Brand

TENKER

Warranty

Warranty information

We Provide Full Refund Within 1 Month And 365 Days After Service Support, If You Have Any Questions With Our Dvd Player, Feel Free To Contact Us Through Walmart Message Center, Our Customer Service Team Will Reply You Pretty Soon.

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Warnings

Customer ratings & reviews

4.6 out of 5 stars
stars
96 ratings36 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars78% (75)
  2. 4 stars10% (10)
  3. 3 stars5% (5)
  4. 2 stars0% (0)
  5. 1 star6% (6)

Reviews summary

Pros

  • : Simple to operate due to its lightweight and compact build.
  • : The unit cranks vehicles reliably on the first try.
  • : The unit is small and easy to carry.
  • : The unit provides strong starting power in a small form factor.
  • : The unit starts vehicles reliably when needed.

Cons

  • : The starter fails to revive long-dead batteries.
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Showing 1-3 of 36 reviews

Dec 20, 2025
Reviewer name: Alissa
Top Reviewer
Item details
Size: 4000A
Sold byJJTIEJIANG StoreDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Peace of Mind for College Commute

I bought this for my daughter since her car is a little older and she'll be making a two-hour drive to and from college. I wanted something reliable so she wouldn't be stuck waiting for help if her battery acts up. It's easy to use, compact, and gives me serious peace of mind knowing she has it with her. Definitely a smart buy for any parent with a college kid on the road.

Incentivized Review
Helpful?4K7SS6BOE2RD16551250033
Nov 30, 2025
Reviewer name: mirian
Item details
Size: 4000A
Sold byJJTIEJIANG StoreDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

It works great and is very easy to use

This jump starter surprised me with its power. It started my car quickly and easily. The LCD screen is very useful, and the USB ports charge well. It's compact, comes with everything you need, and the LED light is a big help at night. I'm very happy with my purchase.

Incentivized Review
Helpful?4K7SS6BOE2RD16551250033
Dec 21, 2025
Reviewer name: Elena
Item details
Size: 4000A
Sold byJJTIEJIANG StoreDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Car Jump started

This is so good is very portable and reliable when needed the battery life last a while, it is very good to jump start any car is strong,

Incentivized Review
Helpful?4K7SS6BOE2RD16551250033
Current price is Now $35.99
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was $39.99
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4.6 stars out of 5, based on 20 seller reviews(4.6)
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