LOKITHOR JT400 2500A Portable Jump Starter with 100–2000 CCA Battery Tester, 12V Car Battery Jump Starter for Up to 8.5L Gas or 6.5L Diesel Engines, Smart Bluetooth Automotive Battery Load Tester

$23.98 USD
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  • 【Smart Jump Starter and Battery Tester】A powerful jump starter that delivers up to 2500A peak current to start 12V vehicles (up to 8.5L gas / 6.5L diesel). It functions as both a car battery booster and battery tester, featuring built-in Bluetooth 5.3 for real-time battery monitoring via a mobile app. It supports battery health, cranking, and charging tests, as well as real-time voltage monitoring, and then provides key data such as SOH (State of Health), SOC (State of Charge), voltage, current, and rated capacity.
  • 【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.
  • 【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.
  • 【Portable Power Bank & Emergency LED Light】With USB-A and USB-C two-way charging ports, it keeps your smartphones, tablets, and more fully powered on the go. The built-in LED flashlight offers 6 modes (100%, 50%, 10%, Blink, SOS, and Strobe), making it a reliable and must-have emergency companion for road trips, camping, and outdoor adventures.
  • 【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.
  • 【Packing List & 24/7 Customer Service】You will get: 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. We recommend using the APP on devices running Android 12 or iOS 14 and above.
UPC889551124331
BatteryLithium-Phosphate
Voltage12 volts
Amperage2500 A
Unit Count1 Count
Item Weight14.4 ounces
Battery TypeLithium-Phosphate
ManufacturerLOKITHOR
Model NumberJT400
Battery Capacity8000 milliamp_hours
Included ComponentsJT400 Portable Jump Starter with Battery Tester, Product Storage Bag, Smart Jumper Cables, USB Cable, User Manual
Peak Output Current2500 A
Item Depth Width Height3.46"D x 6.92"W x 1.73"H
Manufacturer Part NumberJT400
Item Dimensions D x W x H3.46"D x 6.92"W x 1.73"H
Compatible With Vehicle TypeLawn Mower, Motorcycle, Passenger Car, Truck, UTV
Compatible with Vehicle TypeLawn Mower, Motorcycle, Passenger Car, Truck, UTV
Manufacturer Warranty Description1 YEAR
O-JT400 jump starter and battery tester
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Q: Why can't Bluetooth connect?

A: 1. Make sure your phone’s Bluetooth isn’t connected to other devices. 2. Go to your phone settings, search “LOKITHOR,” and check if Bluetooth permission is enabled. 3. Please contact after sales.

Q: How can I find out my battery type and CCA rating?

A: You can check the battery label, visit the manufacturer’s official website, or contact the manufacturer directly.

Q: Can it test all types of 6V, 12V, 24V batteries?

A: It only tests 12V lead-acid batteries, including regular flooded, AGM flat plate, AGM spiral, GEL, and EFB.

Q: Why are there differences in the test results at the same time?

A: Slight variations in test results are normal and can be caused by changes in ambient temperature, the battery's current condition, or the vehicle's electrical load. We recommend checking that the input parameters (such as CCA) are correct.

Q: How do use the Boost Start function?

A: Normally, you can start the car by turning on the unit and connecting the clips. If it won’t start, use boost mode: connect the red clip to the positive terminal, hold “M” for 5s, then connect the black clip to the negative terminal to start.

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