GOOLOO GT4000 4000A Supersafe Jump Starter with Pre-heating TechGOOLOO GT4000 smart tech jump starter delivers reliable cold weather performance, capable of starting your car even in extreme temperatures as low as 40F ( 40C). Its advanced battery technology and powerful 4000A peak current ensure instant ignition when you need it most, no matter how harsh the winter conditions get. Never stranded in the cold againthis rugged jump starter works when others fail. GOOLOO GT4000 best battery booster for diesel engine

Continuous feature upgrades

and it is perfectly designed for GOOLOO GT3000

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Charge laptops

No need to worry about water splashes or debris

EPB (Brake) Reset

over-current protection

real-time power status updates for precise monitoring

Built-In LED Emergency Flashlight

no matter how harsh the winter conditions get

Strobe Mode

Powerful Hardware for Professional Use