THE ONE 

JUMP STARTER + BATTERY CHARGER + BATTERY TESTER

~ Jump Starter With 4250 amps, capable of starting vehicles with up to 10L gasoline and 8L diesel engines.

~ Smart Charging Solutions: This versatile charger supports 6V and 12V lead-acid batteries and 12V lithium batteries with 6A AC charging. It features multiple charging modes, including normal charging, force charging, and maintenance mode, ensuring your batteries are always in optimal condition. With 5-stage charging technology, it maintains your battery overnight or longer, while the integrated voltmeter helps identify battery status.

~ Comprehensive Battery Diagnostics: The JTC4250 battery tester offers in-depth diagnostics for 12V batteries, including battery health assessments, cranking tests, and charging tests. It features a convenient app for easy viewing and exporting of test data, ensuring you have all the information you need at your fingertips.

~ ConnectMax Technology: The state-of-the-art system automatically detects the impedance of the clamp connection to your car battery, ensuring optimal contact every time and maximizing the starting efficiency of your jump starter.

~ LiFePO4 Safe Performance: Ensures over 2000 cycles, significantly outlasting lead-acid batteries and reducing costs.