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WOLFBOX - 4000A Car Battery Jump Starter, Portable Battery Booster, Fast Charger, Jump Box for 10L Gasoline and Diesel Engines

Model: JS24
SKU: 11091281
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Customers are saying

Customers are satisfied with the overall performance and ease of use of this starter, noting that it functions exactly as described. Users frequently highlight the fast charging speed and the compact size, which makes it an ideal choice for smaller vehicles. Additionally, the long-lasting battery life and the inclusion of a bright flashlight are highly appreciated features.

Generated by AI based on customer reviews.
Features

  • High-Capacity Power

    High-capacity 4000A jump starter with a 24000mAh/88.8Wh battery, suitable for 12V vehicles including cars, trucks, boats, and larger vehicles.Portable Jump Starter Battery Pack(10L Gas 10L Diesel Engine)

  • HD LED Display

    This LED screen provides a clear display of all the status indicators for the portable car jump starter supply. You can easily discern the current state of your emergency power source, facilitating seamless access to all functionalities.

  • 65W USB-C Quick Charging Port

    We have 1 * 65W Type-C in/out port, and 1 * QC3.0 USB-A port, and the jump start battery pack source fully charges in just 1.3 hours. With two output ports, it quickly charges common electronic devices like phones, laptops, and iPads, making it ideal for travel or camping. You will need to purchase a PD65W fast charger separately.

  • Booster & LED Flashlight

    The booster function can assist you in starting your vehicle normally when the voltage is too low, and this jump box supply also comes equipped with an LED flashlight featuring SOS, strobe, and high-beam modes. In emergencies, it can serve as your emergency device.

  • IP64 & 10 Types Safe Protections

    The battery jumper starter portable with an IP64 protection rating, ensures the emergency power supply is resilient in harsh environments. Internally, it features 10 essential safety protections, including spark-proof, low-temperature protection, and high-temperature protection.

See all features
Specifications
  • Brand
    WOLFBOX
    Model Number
    JS24
    Product Name
    4000A Car Battery Jump Starter, Portable Battery Booster, Fast Charger, Jump Box for 10L Gasoline and Diesel Engines
    Amperage
    4000A
    Voltage
    12V
    Compatible Battery Type
    Lithium
See all specifications
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Reviews

Rating 4.8 out of 5 stars with 120 reviews

5 star rating. 109 reviews4 star rating. 6 reviews3 star rating. 1 review1 star rating. 4 reviews
97% would recommend to a friend
Customers are sayingCustomers are satisfied with the overall performance and ease of use of this starter, noting that it functions exactly as described. Users frequently highlight the fast charging speed and the compact size, which makes it an ideal choice for smaller vehicles. Additionally, the long-lasting battery life and the inclusion of a bright flashlight are highly appreciated features.
This summary was generated by AI based on customer reviews.
  • Overall Performance (36)
  • Ease of Use (29)
  • Charging Speed (11)
  • Size (10)
  • Battery Life (7)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    The Wolfbox 4000A Is A Lifesaver!

    I purchased this jump box incase of an emergency and little did I know how soon I would need it. My vehicle has a V8 engine and one morning on the way to work my car made that dreadful “CLICKING” dead battery sound. The Wolfbox 4000A had been in my trunk for weeks in the high heat and still held a 94% charge. The engine turned over like it was nothing on the first attempt and the charge only dropped to 92%. It’s so simple and easy to use. The ability to charge other devices, built in flashlight and a nice protective case makes this an extremely useful tool. I recommend keeping it in your vehicle at all times. "Dare To Go Everywhere"! It's truly a life saver!

    Posted by THREX1138

  • Rated 5 out of 5 stars

    Great portable jump starter!

    Compact, powerful, and easy to use. It quickly jump-started my vehicle and the built-in display makes it simple to monitor the battery level. I also like the USB charging feature and the included carrying case. A great emergency tool to keep in your car for peace of mind. Highly recommend.

    Posted by Cheu

  • Rated 5 out of 5 stars

    Life Saving Device

    GREAT Device to have during these CRAZY Chicago's WINTER Season...I ALREADY Used it 3 times...I will suggest this item to ALL My Family & Friends...Thks...

    Posted by NickR

  • Rated 5 out of 5 stars

    Great buy

    Seems really well built and strong, bought for emergencies.

    Posted by RLH765

  • Rated 5 out of 5 stars

    Jump starter amazing

    I order this item recently and tried it to start my cousin’s car. Is worth having this I always wanted one and finally bought one. Is very easy to use and charge and best of all the size is small perfect for small vehicles and also have a super bright flashlight. Is worth every dollar.

    Posted by Clost23

See all customer reviews

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Pros for WOLFBOX - 4000A Car Battery Jump Starter, Portable Battery Booster, Fast Charger, Jump Box for 10L Gasoline and Diesel Engines
Overall Performance, Ease of Use, Battery Life, Charging Speed, SizeAir Compressor, Build QualityOverall Performance, Battery Life, Ease of Use, Power CapacityThere were no pros for this product—

Specs

Questions & Answers

  • how does the battery rechargeafter use?

    I usually get a lot jump per full charge. mine usually takes about 3 hours from completely dead.

    Answered by Spiffy24

  • Does this work with a 1 ton Diesel?

    if your engine's starter uses less then 4000a cranking amps then yes it'll work I would imagine your engine is close to a f550 so yes it would work

    Answered by Mick

  • what type of plug in to the wall outlet does it take?

    Thank you for your inquiry. Generally, you can charge the device using any standard 65W (or higher-rated) charger.

    Answered by WOLFBOX

  • Can it be stored in car

    Yes, the MegaVolt 24 (4000A jump starter) can be stored in your car It can withstand a storage temperature range of -20°C to 60°C / -4℉ to 140℉, so it's safe to leave it in your car during both summer and winte

    Answered by WOLFBOX

  • If fully charged, how long should this battery remain able to start a car? Can I safely keep it in my trunk for, say, 6 months and count on its ability to start my car?

    When fully charged, the MegaVolt 24 retains the ability to start a vehicle for 6 to 12 months; it can still start the vehicle normally after six months of storage, provided that proper storage guidelines are followed to ensure consistent performance.

    Answered by WOLFBOX
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