LOKITHOR J401X 2500A Jump Starter -40℉ Auto-Heating Tech (8.5L Gas & 6.5L Diesel), 12V Portable Jump Box, ConnectMax, 100W Fast Charge, LED Light
LOKITHOR J401X 2500A Jump Starter -40℉ Auto-Heating Tech (8.5L Gas & 6.5L Diesel), 12V Portable Jump Box, ConnectMax, 100W Fast Charge, LED Light
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LOKITHOR J401X 2500A Jump Starter -40℉ Auto-Heating Tech (8.5L Gas & 6.5L Diesel), 12V Portable Jump Box, ConnectMax, 100W Fast Charge, LED Light

|5 ratings

Key item features

  • Powerful Boosting: Provides 2500A peak current and 20000mAh capacity, delivering up to 60 jump starts for 8.5L gas and 6.5L diesel engines, with Force Start.
  • Cold-Weather Ready: Features -40F Smart Pre-Heating, activating below -5F for reliable ignition in extreme cold, operating efficiently from -40F to 122F.
  • Fast Recharge: Offers 100W two-way fast charging, fully recharging in about 45 minutes, with 3 minutes of emergency charge for one immediate jump.
  • Versatile Powerbank: Its USB-C port doubles as a power bank, efficiently charging phones, tablets, and laptops.
  • Robust Safety: Integrates Smart BMS with 10 comprehensive protections (reverse-polarity, spark-proof, short-circuit), supported by ConnectMax clamp technology.
  • Clear Display: A 3.75-inch smart LED screen displays real-time voltage, providing essential operational information.
  • Integrated Lighting: Features a 300-lumen, 3-mode LED light offering steady white, red SOS, and red strobe functions.
Generated by AI

Specs

Battery capacity, 20000 mAhAmps, 2500 AAutomotive battery type, Lithium PolymerBrand, LOKITHORPower type, BatteryFeatures, Easy To Use, LED Lights, Portable Battery Starter, Quick USB Charge, USB Powered, Convenient Carrying, Diverse Application, Convenient Storage, Emergency Equipment, Easy To Handle, Outdoor Usage, Safe To Use, Wide Application

About this item

Product details

LOKITHOR J401X is a 12V portable car battery charger jump starter with 2500A peak current and a 20000mAh lithium polymer battery, delivering up to 60 jump starts per charge for 8.5L gas and 6.5L diesel engines in cars, trucks, SUVs, RVs, vans, boats, motorcycles, ATVs, UTVs, tractors and mowers, with Force Start for stubborn engines. Its -40F Smart Pre-Heating turns on automatically below -5F to warm the battery for dependable cold-weather ignition, and it operates from -40F to 122F with up to 42-month ultra-low self-discharge standby. The 100W two-way PD system fully recharges in about 45 minutes, while 3 minutes of emergency charging provides enough power for one jump start; the USB-C port also works as a power bank for phones, tablets and laptops. A 3.75-inch smart LED screen shows real-time voltage, and the 300-lumen 3-mode LED light offers steady white, red SOS and red strobe. Smart BMS provides 10 protections with ConnectMax clamp technology, and the IP65, 94V0 flame-retardant drop-resistant shell measures 9.45 x 4.19 x 2.36 inches, weighs 3.3 lbs, and is backed by a 1-year LOKITHOR warranty.
  • 2500A Portable Car Jump Starter: 2500A peak current and a 20000mAh battery give up to 60 jump starts per charge for 8.5L gas and 6.5L diesel cars, trucks, SUVs, RVs, boats and ATVs, with Force Start.
  • -40F Auto Pre-Heating: A built-in temperature sensor turns on heating below -5F, supporting ignition down to -40F for winter, snow and cold-region emergencies; operates from -40F to 122F.
  • 100W Two-Way Fast Charge: Fully recharges in about 45 minutes, and 3 minutes of emergency charging is enough for one jump start; the USB-C port charges phones, tablets and laptops.
  • Smart BMS & 3.75" Screen: 10 protections, including reverse-polarity, spark-proof and short-circuit, with ConnectMax clamp tech; the LED screen shows real-time voltage; 300-lumen 3-mode light.
  • IP65 Build & 42-Month Standby: IP65 dust- and water-resistant 94V0 flame-retardant drop-resistant shell, 42-month standby, 9.45 x 4.19 x 2.36 in, 3.3 lbs, 1-year LOKITHOR warranty.
info:
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Specifications

Battery capacity

20000 mAh

Amps

2500 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

4.2 out of 5 stars
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5 ratings5 reviews
Includes global ratings and reviews
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  1. 5 stars80% (4)
  2. 4 stars0% (0)
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  5. 1 star20% (1)
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Showing 1-3 of 5 reviews

Dec 29, 2025
Reviewer name: Sagdulla
Sold byLokithor StoreDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

It s very good battery for cars change. 5 🌟

Helpful?1YFXVX0G8FF65352927001
Jan 23, 2023
Reviewer name: Jeremiah Taylor
5 out of 5 stars
5 out of 5 stars review

Luckily I have not had to use it yet

My truck battery has been slowly getting low and I'm waiting for it to die so I can use the jump starter to test it. I will update my review once I use it.

Review from lokithorshop.com
Helpful?1YFXVX0G8FF65352927001
Jan 20, 2023
Reviewer name: Manuel Bustoz
5 out of 5 stars
5 out of 5 stars review

J401x

So far used it once to force jump my 2012 Power wagon and did well. Instruction are clear and has options to use when one step does not work. Delivery was made as shown on my email. Good price for what it offers.

Review from lokithorshop.com
Helpful?1YFXVX0G8FF65352927001
Current price is $169.95
Price when purchased online
  • Free shipping
  • Free Holiday returns until Jan 31

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Sold and shipped by Lokithor StorePro Seller
4.885416666666667 out of 5 stars
4.9 stars out of 5, based on 96 seller reviews(4.9)
Extended holiday returns
Free Holiday returns until Jan 31