NOCO Boost GB40 Portable 12V 1000A Lithium Jump Starter — Compact, 100-Lumen LED & USB-C Power Bank

The NOCO Boost GB40 is a compact, 1000-amp portable lithium jump starter that safely revives dead 12V batteries and doubles as an emergency power bank and flashlight.

The NOCO Boost GB40 combines high-current starting performance with a rugged, pocket-friendly design so you can get a vehicle running in seconds and stay powered during roadside incidents. Built with safety features that prevent sparks and reverse polarity, the GB40 is engineered for everyday drivers, weekend adventurers, and service professionals who need reliable, repeatable starts and on-demand USB power. Its light weight and small footprint make it easy to store in a glovebox, trunk, or tool kit.

How quickly and reliably will it start my vehicle?

The GB40 delivers up to 1000 peak amps through high-discharge lithium cells to start gasoline engines up to 6.0L and diesel engines up to 3.0L. On a full charge it can provide roughly 20 starts, making it suitable for multiple emergency uses before recharging. The heavy-duty clamps and high-conductivity cable ensure efficient power transfer when you need it most.

• 1000 peak amps for strong cold-cranking performance
• Rated for gasoline engines up to 6.0 liters, diesel up to 3.0 liters
• Approximately 20 starts per full charge under typical conditions
• Includes high-conductivity clamps for fast energy transfer

What safety features protect me and my vehicle?

NOCO engineered the GB40 with smart protections to prevent common jumper mistakes. The unit uses spark-proof clamps and built-in reverse polarity protection so incorrect connections won’t damage the battery or electronics. Rugged construction and IP65 resistance also guard internal components from water and dust during outdoor use.

• Patented spark-proof technology prevents accidental arcing
• Reverse polarity protection blocks wrong-hookup damage
• IP65-rated housing resists dust and low-pressure water jets
• Rubberized over-mold adds drop and impact resistance

Can it charge my phone or help during a night emergency?

Yes — the GB40 functions as a USB-C power bank to recharge phones, tablets, and small electronics when mains power isn’t available. It also has a built-in 100-lumen LED lamp with seven modes, including SOS and strobe, to improve visibility during repairs or emergencies at night. The battery recharges in about three hours with a compatible USB-C charger so it’s ready to carry again quickly.

• USB-C output for charging phones and portable devices
• Integrated 100-lumen LED with seven modes including SOS
• Recharge time approximately 3 hours via USB-C input
• Compact form factor fits gloveboxes and emergency kits

Who is this for? The NOCO Boost GB40 is aimed at frequent drivers, fleet operators, outdoor enthusiasts, and anyone who wants a compact and dependable way to start a stalled vehicle without roadside assistance. It’s also useful for first responders, technicians, and travelers who value a dual-purpose device that supplies both jump-start capability and portable USB power. With a durable build, simple safety features, and a small footprint, the GB40 is practical for everyday carry and peace-of-mind on long trips.