NOCO Boost GB20 500A 12V UltraSafe Jump Starter — Compact Lithium Power Bank with 100 lm LED, IP65 Rugged Housing

The NOCO Boost GB20 is a compact 500-amp lithium jump starter that quickly and safely restarts 12V gasoline vehicles up to 4.0L while doubling as a USB-C power bank and LED emergency light.

Small enough for a glovebox yet rugged enough for the road, the GB20 is designed to revive dead batteries, recharge devices, and provide bright illumination in roadside or outdoor situations. Built with NOCO’s UltraSafe technology, this unit prevents sparks and incorrect hook-ups, and its IP65-rated housing stands up to dust, splashes, and everyday bumps. The GB20 includes heavy-duty clamps, a USB-C cable, and a storage pouch so it’s ready to go straight out of the box.

How fast and how many times will the GB20 restart a vehicle?

The GB20 delivers up to 500 amps of peak current, enough for gasoline engines up to 4.0 liters. On a single full charge it can perform around 20 jump starts, making it reliable for repeated use between charges.

• 500A peak starting power for quick engine cranks
• Suitable for most 12V cars, SUVs, trucks, ATVs, and boats with gasoline engines up to 4.0L
• Approximately 20 starts per full charge under normal conditions

What safety measures protect me and my vehicle when using the GB20?

NOCO engineered the GB20 with multiple protections to make jump-starting simple and mistake-resistant. The UltraSafe system includes spark-proof clamps and reverse polarity protection so accidental connections won’t cause damage.

• Spark-proof connectors minimize ignition risks during hookup
• Reverse polarity protection prevents damage from incorrect clamp orientation
• Durable casing and insulated clamps reduce wear and user risk

Can the GB20 charge phones and help during nighttime emergencies?

Yes—the unit doubles as a USB-C power bank to top up phones, tablets, and other USB devices, and features an integrated 100-lumen LED with seven modes for visibility and signaling. Recharge time is fast, and the light includes SOS and strobe settings for emergency situations.

• USB-C output to charge phones, tablets, and accessories
• 100-lumen LED flashlight with steady, strobe, and SOS modes
• Typical full recharge in roughly three hours via USB-C input

How durable and portable is the GB20 for travel and storage?

The GB20 is designed to be both small and tough—its compact weight and form factor make it easy to store, while the IP65-rated enclosure and rubberized over-mold protect it against water, dust, and impacts. A microfiber bag keeps accessories organized when you’re on the move.

• Compact 2.4 lb body fits glove boxes and emergency kits
• IP65-rated housing resists dust and water splashes
• Rubber over-mold and rugged clamps tolerate everyday abuse

Who is this for: The NOCO Boost GB20 suits drivers, outdoor enthusiasts, and fleet users who need a reliable, easy-to-use jump starter that also functions as a power bank and emergency light. If you want a compact, travel-ready solution for dead batteries on 12V gasoline vehicles up to 4.0L—with built-in safety features and durable construction—the GB20 is a practical choice for keeping in your car, RV, or toolkit.