Puts out 1000 amps of lithium cranking power to start a dead 12V battery, up to 20 starts per charge, rated for gas engines to 6.0L and diesel to 3.0L.
The NOCO Boost GB40 is a 1000-amp lithium jump starter that cranks a dead 12-volt battery without a second vehicle or a set of jumper cables. It holds enough charge for up to 20 jump starts and is rated for gasoline engines up to 6.0L and diesel up to 3.0L, so it covers cars, light trucks, motorcycles, ATVs, and boats.
In the shop this earns its spot on the bench. A vehicle that sits on the lift with the doors open or the key on through a long transmission R&R often comes down with a flat battery, and you still need to crank it to check line pressure, verify shift quality, and look for cooler-line leaks. Clip the GB40 to the posts and you are cranking in seconds instead of dragging out a charger and waiting.
The UltraSafe design has spark-proof and reverse-polarity protection, so a backward clamp connection will not arc or damage electronics. The housing is IP65 rated against water and dust with a rubberized over-mold, it weighs about 2.5 lb, and it doubles as a USB-C power bank plus a 100-lumen LED flashlight with seven modes for working under the dash or on a dark roadside.
Ships with the heavy-duty booster clamps, a USB-C charging cable, and a storage bag. Recharges in about 3 hours and is backed by a 1-year warranty.
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