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LOKITHOR

LOKITHOR JT400 2500A Portable Jump Starter with Battery Tester 12V Car Battery Jump Starter for Up to 8

4.6(85)
$69.95$99.95

1249+ bought in the past month

Sobre este artículo

  • 【Smart Jump Starter and Battery Tester】This jump starter delivers up to 2500A peak starting current to start 12V vehicles (up to 8.5L gas / 6.5L diesel). Works as a car battery jump starter and battery tester, supporting motorcycles, trucks, RVs, SUVs, boats & more—helping extend battery life and reduce repair costs.
  • 【User-Friendly Battery Tool】Features built-in Bluetooth 5.3 for real-time battery monitoring via a mobile app. It supports battery health, cranking, and charging tests, real-time voltage monitoring. The JT400 digital battery analyzer delivers key data such as SOH (State of Health), SOC (State of Charge), voltage, current, and rated capacity — helping you pinpoint why your car won't start. Get fast, accurate insights and save valuable time
  • 【Wide Battery Compatibility】This alternator tester is compatible with most batteries (100–2000 CCA), including Flooded, AGM Flat Plate, AGM Spiral, GEL, and EFB types. Supports multiple testing standards: CCA / SAE / EN / DIN / IEC, ideal for DIY users, home mechanics, and vehicle owners.
  • 【Extreme Safety Protection】Equipped with an advanced BMS and smart self-identifying clamps for fully insulated and reliable operation. Features 10 comprehensive protections, including Spark-Proof, Reverse Polarity, Over-Charge, Over-Current, Short-Circuit, Low/High Temperature, Over-Voltage, and Over-Load protection—ensuring safe and confident use.
  • 【ConnectMax Technology for Faster Starts】Automatically detects the connection impedance between clamps and battery, optimizing power delivery and improving the success rate of vehicle starting, even in challenging conditions.
  • 【Portable Power Bank & Emergency LED Light】The two-way charging ports power smartphones, tablets and more. The built-in LED flashlight features 6 modes (100%, 50%, 10%, blink, SOS and strobe), making it an essential emergency tool for road trips and outdoor use.
  • 【Packing List & 7×24 Customer Servies】JT400 jump starter ×1, Jump clamps x1, User Manual x1, USB-A to USB-C cable x1, Product Storage Bag x1 and 12-month Warranty, If you need any help, please feel free to contact us.
  • The Best Gift of 2026 – designed for urgency. If you're still agonising over what to buy, the JT400 is undoubtedly the best choice for birthdays, Valentine's Day, Father's Day, Mother's Day, wedding anniversaries, Christmas and New Year.
  • TIPS: To ensure a reliable boost, please ensure that the product has more than 30% battery power. The product has a Bluetooth operating range of about 10 meters. It can be used normally via Bluetooth alone, even in areas without network signal.

Key details

Brand
LOKITHOR
Battery Cell Composition
Lithium Polymer
Vehicle Service Type
ATV, Lawn Mower, Motorcycle, Passenger Car, RV, Scooter, Truck, UTV, Watercraft

Dimensions and fit

Product Dimensions
3.46"D x 6.92"W x 1.73"H

Technical specifications

Voltage
12 Volts
Highlights

About this item

  • 【Smart Jump Starter and Battery Tester】This jump starter delivers up to 2500A peak starting current to start 12V vehicles (up to 8.5L gas / 6.5L diesel). Works as a car battery jump starter and battery tester, supporting motorcycles, trucks, RVs, SUVs, boats & more—helping extend battery life and reduce repair costs.
  • 【User-Friendly Battery Tool】Features built-in Bluetooth 5.3 for real-time battery monitoring via a mobile app. It supports battery health, cranking, and charging tests, real-time voltage monitoring. The JT400 digital battery analyzer delivers key data such as SOH (State of Health), SOC (State of Charge), voltage, current, and rated capacity — helping you pinpoint why your car won't start. Get fast, accurate insights and save valuable time
  • 【Wide Battery Compatibility】This alternator tester is compatible with most batteries (100–2000 CCA), including Flooded, AGM Flat Plate, AGM Spiral, GEL, and EFB types. Supports multiple testing standards: CCA / SAE / EN / DIN / IEC, ideal for DIY users, home mechanics, and vehicle owners.
  • 【Extreme Safety Protection】Equipped with an advanced BMS and smart self-identifying clamps for fully insulated and reliable operation. Features 10 comprehensive protections, including Spark-Proof, Reverse Polarity, Over-Charge, Over-Current, Short-Circuit, Low/High Temperature, Over-Voltage, and Over-Load protection—ensuring safe and confident use.
  • 【ConnectMax Technology for Faster Starts】Automatically detects the connection impedance between clamps and battery, optimizing power delivery and improving the success rate of vehicle starting, even in challenging conditions.
  • 【Portable Power Bank & Emergency LED Light】The two-way charging ports power smartphones, tablets and more. The built-in LED flashlight features 6 modes (100%, 50%, 10%, blink, SOS and strobe), making it an essential emergency tool for road trips and outdoor use.
  • 【Packing List & 7×24 Customer Servies】JT400 jump starter ×1, Jump clamps x1, User Manual x1, USB-A to USB-C cable x1, Product Storage Bag x1 and 12-month Warranty, If you need any help, please feel free to contact us.
  • The Best Gift of 2026 – designed for urgency. If you're still agonising over what to buy, the JT400 is undoubtedly the best choice for birthdays, Valentine's Day, Father's Day, Mother's Day, wedding anniversaries, Christmas and New Year.
  • TIPS: To ensure a reliable boost, please ensure that the product has more than 30% battery power. The product has a Bluetooth operating range of about 10 meters. It can be used normally via Bluetooth alone, even in areas without network signal.

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Customer reviews

85 reviewsPositive

Rated 4.6/5 across 85 reviews — highly regarded by customers.

  • 100% of sampled reviews are from verified purchases.
  • 88% of sampled reviews give 4–5 stars.

Customers say

Customers find the jump starter works well, with one mentioning it started their minivan on the first try.

Generated from the text of customer reviews

Reviews with images

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★★★★★

Great Value, Small Size, Added Features

The LOKITHOR JT400 jump starter is a welcomed to upgrade to the existing great lineup! I switched to the LOKITHOR jump starters couple years ago after having my namebrand Nico fail multiple times. The price point along with features and performance of these are top notch. The JT400 is a very compact size but adds the Bluetooth app features. The small size but keeping the 2500A rating is great. It has USB A and C connections. The clamps are strong and sturdy. This is the first jump starter I’ve purchased with the Bluetooth app features and it is definitely a nice tool. The battery testing, real time voltage, cranking and battery diagnostics. You might not use those every time, but it is nice when troubleshooting a problem. I will continue to buy this brand of jump starters as we use them heavily on the farm and they prove themselves over and over again. Read more

Customer review image for Great Value, Small Size, Added FeaturesCustomer review image for Great Value, Small Size, Added FeaturesCustomer review image for Great Value, Small Size, Added FeaturesCustomer review image for Great Value, Small Size, Added Features
CodyOVerified purchase
★★★★★

Did the job and will be a nice tool to have in the car.

Good size and price. We ordered it to get us out of a pickle and it did the job. I will give a heads up that the paper instructions it comes with are not the clearest so there's probably gonna be a little trial and error for most people upon their first use. Read more

L. BatistaVerified purchase
★★★★★

Great little device!

I love this Lokithor JT400. Its not at all hard to use and it jumped my minivan on the first try even though in my entire 73 years, I've never jumped a car. It's easy to figure out, easy to use and came already charged. Definitely well worth getting to keep yourself safe from being stranded. Read more

Dianne W.Verified purchase
★★★★★

A very reliable and good jump starter for a good price

I just received my Lokithor JT400 Jump Starter. I just used it to jump my 1997 Chevrolet Silverado C2500 Truck after it sat for 2 weeks after a major snow/ice storm with sub zero temperatures and it immediately started my truck after the very first try. I am very surprised at how well the Lokithor JT400 performed and would highly recommend it to anyone looking for an excellent jump starter that is very compact, is very reasonably priced, and is a jump starter you can definately count on. Read more

Michael SmithVerified purchase
★★★★★

Powerful, compact, and very useful

I’m very impressed with the LOKITHOR JT400 jump starter. It’s compact but surprisingly powerful, and it started my 12V vehicle battery without any issues. The 2500A peak current is more than enough for cars and small trucks. The built-in battery tester is a great bonus and makes it easy to quickly check battery health without extra tools. The display is clear, and the controls are simple to use. The clamps feel solid and well insulated, and the safety protections give peace of mind. It’s lightweight, easy to store in the car, and charges quickly. Overall, this is a reliable 2-in-1 tool that’s great for emergencies or regular battery checks. Excellent value for the price — highly recommended. Read more

MaximeVerified purchase
★★★★

Works great other than the Bluetooth

Would be a five star, but as somewhat troubles when you’re trying to connect up the Bluetooth to the phone to it Read more

royVerified purchase
★★★★★

Jump pack!

Love my Lokithor battery jump pack. I have 2 other models from them and use them all the time. They are great quality, ease of use, user friendly, and the storage capacity of the these are great for the power needed! Read more

Customer review image for Jump pack!Customer review image for Jump pack!
LoganVerified purchase
★★★★★

More than just a jump box!

What a great value! After wading through all the battery jump box options this was the one that ticked all of the boxes for me. The unit arrived in very nice packaging and was immediately ready to be used with its simplistic feature buttons. It does great for a jump box but the other Bluetooth app additional features is the cherry on top. From battery testing / crank testing / charging test / to live voltage view for draw diagnostics. Excited to have this in our family fleet! Read more

Customer review image for More than just a jump box!
Tyler B.Verified purchase
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