LOKITHOR J400 2000A Car Jump Starter for 8.0L Gas/6.0L Diesel, Portable Jump Box with ConnectMax Tech, Power Bank and LED Flashlight
LOKITHOR J400 2000A Car Jump Starter for 8.0L Gas/6.0L Diesel, Portable Jump Box with ConnectMax Tech, Power Bank and LED Flashlight
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LOKITHOR J400 2000A Car Jump Starter for 8.0L Gas/6.0L Diesel, Portable Jump Box with ConnectMax Tech, Power Bank and LED Flashlight

|13 ratings

Key item features

  • 2000 Amp Peak Portable Jump Starter: LOKITHOR J400 delivers 2000A peak current to start compatible 12V vehicles up to 8.0L gas or 6.0L diesel, including cars, SUVs, trucks, motorcycles, RVs, and tractors, with up to 25 starts per charge.
  • ConnectMax Smart Clamp Detection: Auto-detects clamp connection impedance and adjusts power output for optimal transfer, with LED indicators to confirm proper battery connection before starting.
  • 10-Layer Safety Protection: Includes spark-proof, reverse-polarity, short-circuit, reverse-charge, over-voltage, over-current, over-load, over-charge, low-temperature, and high-temperature safeguards, plus intelligent BMS and Force Start capability.
  • QC3.0 Fast Charging Power Bank: USB-A and USB-C 5V/3A outputs with QC3.0 15W Max fast charging provide portable charging for compatible phones, tablets, and other USB devices.
  • 300-Lumen LED Flashlight: Built-in flashlight with Emergency, SOS, and Strobe modes for roadside emergencies, camping, travel, and power outages; 5.75-inch smart display shows real-time status.
  • Compact Design with 24-Month Standby: Weighs 0.99 lb and measures 6.89 × 3.39 × 1.69 inches; fits in a glove box or backpack, operates from -4°F to 122°F, and holds a charge for up to 24 months.

Specs

Battery capacity, 6400 mAhAmps, 2000 AAutomotive battery type, Lithium PolymerBrand, LOKITHORPower type, BatteryFeatures, Convenient Carrying, Convenient Storage, Diverse Application, Emergency Equipment, LED Lights, Portable Battery Starter, Safe To Use, USB Powered, Wide Application, Easy To Use, Easy To Handle

About this item

Product details

The LOKITHOR J400 is a 2000A 12V portable car jump starter and lithium battery booster that delivers up to 25 jumps from a single 6400mAh charge, starting gas engines up to 8.0L or diesel engines up to 6.0L. Built with 80C high-rate lithium polymer cells and an intelligent BMS, this car jump starter uses ConnectMax technology to auto-detect clamp impedance and optimize power transfer, with LED indicators confirming a secure connection before ignition. A 5.75-inch smart display shows real-time battery level and operational alerts, and Force Start mode revives deeply discharged batteries. Ten safety protections—spark-proof, reverse-polarity, short-circuit, reverse-charge, over-voltage, over-current, over-load, over-charge, and low/high-temperature—keep connections secure from -4°F to 122°F. This versatile portable jump box doubles as a QC3.0 15W max power bank with USB-A and USB-C 5V/3A ports, plus a 300-lumen LED flashlight with Emergency, Strobe, and SOS modes.
  • 2000 Amp Peak Portable Jump Starter: LOKITHOR J400 delivers 2000A peak current to start compatible 12V vehicles up to 8.0L gas or 6.0L diesel, including cars, SUVs, trucks, motorcycles, RVs, and tractors, with up to 25 starts per charge.
  • ConnectMax Smart Clamp Detection: Auto-detects clamp connection impedance and adjusts power output for optimal transfer, with LED indicators to confirm proper battery connection before starting.
  • 10-Layer Safety Protection: Includes spark-proof, reverse-polarity, short-circuit, reverse-charge, over-voltage, over-current, over-load, over-charge, low-temperature, and high-temperature safeguards, plus intelligent BMS and Force Start capability.
  • QC3.0 Fast Charging Power Bank: USB-A and USB-C 5V/3A outputs with QC3.0 15W Max fast charging provide portable charging for compatible phones, tablets, and other USB devices.
  • 300-Lumen LED Flashlight: Built-in flashlight with Emergency, SOS, and Strobe modes for roadside emergencies, camping, travel, and power outages; 5.75-inch smart display shows real-time status.
  • Compact Design with 24-Month Standby: Weighs 0.99 lb and measures 6.89 × 3.39 × 1.69 inches; fits in a glove box or backpack, operates from -4°F to 122°F, and holds a charge for up to 24 months.
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Specifications

Battery capacity

6400 mAh

Amps

2000 A

Automotive battery type

Lithium Polymer

Brand

LOKITHOR

Warranty

Warranty information

1. 12 Months Warranty 2. Our warranty does not extended to any products that are physically damaged or that are not under normal operating conditions as a result of misuse or improper installation on the buyer/user's part. 3. This product comes with 30-Day Money Back Guarantee. 4. We stand behind every product we sell. If you're not pleased with your purchase, we'll be happy to make an exchange or refund.

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

Customer ratings & reviews

4.6 out of 5 stars
stars
13 ratings10 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars85% (11)
  2. 4 stars8% (1)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star8% (1)
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Showing 1-3 of 10 reviews

Oct 23, 2026
Reviewer name: Mark
Top Reviewer
Sold and shipped byLokithor Store
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Super car/truck jump starter!

I love this powerful jump starter. It will handle jump starting anything from a tiny Toyota to a giant diesel truck. It replaced a smaller one that I had for many years. I plan on keeping it fully charged and ready for action this winter.

Incentivized Review
Helpful?0RDZ36ZKHDSW21007751676
Oct 15, 2026
Reviewer name: ClassierMama
Top Reviewer
Sold and shipped byLokithor Store
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Handy Jumpstarter

Just what i needed. Its small and easy to use. Just lift the side cover and attach the cables. It does have different emergency light settings. Doesnt come with something to store it in. But got the job done.

Incentivized Review
Helpful?0RDZ36ZKHDSW21007751676
Oct 15, 2026
Reviewer name: Denice
Top Reviewer
Sold and shipped byLokithor Store
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Always keep one near you.

Picked this up for the emergency kit and it's honestly punches way above its size. The 2000A rating handles bigger blocks without breaking a sweat, and the 5.75-inch display is super clear for checking battery levels at a glance. What I really like are the smart clamps—they actually check connection impedance before letting power through so you don't have to worry about accidentally shorting anything out. Plus, having the built-in USB power bank and flashlight on the side makes it a solid all-in-one emergency box to keep tucked away. I'd definitely recommend this solid item for anyone seeking peace of mind!

Incentivized Review
Helpful?0RDZ36ZKHDSW21007751676
Current price is Now $59.97
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was $79.95
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