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The GOOLOO GT4000S is a lithium jump starter rated at 4000A peak, enough for 12V engines up to 12.0L gasoline or 10.0L diesel. It doubles as a power bank with three USB ports, a 15V 10A DC port and a 400-lumen flashlight, and its 100W input recharges it in about 1.2 hours. A full charge is claimed to cover up to 60 jump starts. It suits drivers of large gas or diesel vehicles who want one pack for jump starts and device charging; it is bulkier and heavier than pocket-sized starters aimed at small cars.
In stockSold by GOOLOOReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Owners rate it highly, praising the fast recharge and reliable starts on large engines. Complaints center on the bulky body and short jumper cables.
The GOOLOO GT4000S is a portable car jump starter and power bank. It delivers 4000A peak cranking power and can jump-start 12V batteries in vehicles with engines up to 12.0L gasoline or 10.0L diesel. A single charge provides up to 60 jump starts.
It supports 100W fast charging. A full charge takes about 1.2 hours, and it can be ready to start a vehicle in as little as 5 minutes.
It also works as a power bank. It has three USB ports and a 15V 10A port for powering DC devices. It can charge a MacBook and other laptops. A built-in 400-lumen flashlight is included.







