It can safely jump-start a dead battery in seconds, like on a lawn mower, car, boat, motorcycle, ATV, RV, truck, and more.

Designed for a car, boat, RV, truck, and more with gas engines up to 6 liters, and diesel engines up to 3 liters.

Genius Boost Plus (+) Jump Starter

The GB40 is ultra-safe, ultra-portable, lightweight, and compact lithium-ion jump starter for 12-volt batteries.

NOCO Genius Boost Jump Starter GB40

The GB40 is powered by a High-Density NOCO Element lithium-ion battery that can hold its charge for up to one year, and handle over 1,000 cycles.

LED light. Ultra-bright dual LED flashlight with 7 modes, including SOS and emergency strobe.

USB power. Recharge virtually any USB device, including smartphones and tablets.  It's rated at 1,000 amps (7,000 joules).

Contents include the GB40, 12V HD battery clamps, 40" USB charging cable, USB car charger, and microfiber storage bag.

NOCO - Reinventing Jump Starting since 1914. CE Certified.

Have a question about this product? Email us for assistance and tell us you are looking at SKU 15365.

Email .

We are happy to verify fitment on your piece of equipment if you can provide us with your equipment's model and serial number. We can also answer any questions you may have.

to submit all info we need to assist you. Thank you for helping us help you.