NOCO Boost GB40

Starting a vehicle using the Naoko Boost GB40 can be done in three simple steps.

First, with the clamp assembly firmly connected to the 12-volt out port on the Boost, attach the clamps to the battery: red to positive, black to negative.

Next, power on the unit. The charge LEDs will chase, and the Boost LED will illuminate, indicating that the Boost has detected the battery and is ready to jump-start the vehicle.

Start the vehicle. Once the vehicle is running, power off the unit and disconnect the clamps from the battery.

Affiliate link. We may be compensated.

START DEAD BATTERIES — Instantly start dead batteries with 1000 amps of peak lithium power. Up to 20 starts per charge on engines up to 6.0L gas and 3.0L diesel.

ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse polarity protection for foolproof connections to any 12V vehicle - no sparks, no wrong connections.

PORTABLE POWER BANK — Integrated power bank delivers emergency power to smartphones, tablets, and more. Recharges in 3 hours so it’s ready when it matters most.

INTEGRATED LED FLASHLIGHT — Precision-engineered 100-lumen LED with 7 light modes, including SOS and strobe. Illuminate repairs, emergencies, or low-light environments.

COMPACT YET POWERFUL — High-discharge lithium technology delivers exceptional starting performance in a compact 2.5 lb form factor - perfectly sized for glove boxes and emergency kits.

BUILT TOUGH — Rugged IP65-rated housing with rubberized over-molding protects against water, dust, and impact. Includes high-conductivity clamps for maximum energy transfer.

WHAT’S IN THE BOX — GB40 jump starter, heavy-duty clamps, USB-C charging cable, and microfiber storage bag. Backed by a 1-year warranty and engineered in the USA.