GOOLOO GT4000S 4000A Supersafe Jump StarterGOOLOO GT4000S car portable jump starter is a high performance portable jump starter designed to revive dead car batteries quickly and reliably. Featuring a powerful 100W fast charging capability, it ensures rapid power delivery for both the jump starter itself and compatible devices, reducing downtime. Its compact and portable design makes it an essential roadside companion, providing emergency power when you need it most. Whether you're dealing with

Engine volumetric efficiency calculation

The MUSE Design Awards is hosted by the International Awards Associate (IAA)

Battery (BMS) Reset

and mowers

and scratches

8 Essential Maintenance Functions

Supports pass-through charging (charge devices while charging the unit)

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

No more waiting for roadside assistance or begging for jumper cables

featuring a 100W USB-C port for ultra-fast bidirectional charging (perfect for laptops)

Full-System Diagnostics — Dealer-Level Coverage

With full-system diagnostics