GOOLOO GT4000S Jump Starter vs Gooloo GT6000 Jump Starter

The GT6000 is the stronger pick for most shoppers: it has more peak current, a bigger battery, a readable 3.2-inch screen, IP65 water resistance and a longer 18-month parts and labor warranty. The GT4000S is smaller and lighter, and its 4000A is still plenty for most gas cars and light trucks. Owners of both rate them well for starting power; the GT4000S gets more complaints about its small display and short cable reach. Buy the GT4000S only if you want the most compact unit and don't need to start the largest diesel engines.

• Choose the GOOLOO GT4000S if you want the smallest, lightest unit that still starts big gas engines and most diesel trucks.
• Choose the GOOLOO GT6000 if you may face a large diesel engine, want a clear screen and water resistance, or want the longer warranty.