GOOLOO GT4000 4000A Supersafe Jump Starter with Pre-heating Tech eva box and a powerful 15V/10A DC

and a powerful 15V/10A DC output for larger devices - making it an all-in-one power solution that keeps both your vehicle and electronics running whether you're facing an emergency or just need reliable power on the go

Windows up/down

GOOLOO GT4000S best compact jump starter incorporates 10 advanced safety protections to ensure worry-free operation in any condition

and foolproof

45+ languages supported

GOOLOO GT4000 4000A Supersafe Jump Starter with Pre-heating Tech eva box and a powerful 15V/10A DCGOOLOO 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