NOCO GBX155 4250A 12V Boost X UltraSafe Rechargeable Jump Starter

NOCO GBX155 4250A 12V Boost X UltraSafe Jump Starter

The NOCO Boost X GBX155 is the ultimate 12-volt lithium-ion jump starter built for serious power and versatility. Rated at 4,250 amps of peak output, it can revive gas engines up to 10.0 litres and diesel engines up to 8.0 litres — making it ideal for cars, trucks, SUVs, boats, RVs, and heavy equipment.
Engineered with UltraSafe 2.0 technology, it features spark-proof clamps, reverse-polarity protection and a built-in 60-second safety timer, so you can jump start with confidence in any situation.
Beyond jump starting, the GBX155 doubles as a high-capacity power bank. With a 60 W USB-C Power Delivery port and USB-A output, you can charge laptops, phones, tablets and other USB-powered devices when you’re off grid or stranded.
Durable and travel-ready, the unit features a 500-lumen LED flashlight with SOS and strobe modes, an IP65-rated waterproof and dustproof case, and a compact form weighing around 5.8 lbs. Whether you’re prepping for roadside emergencies, off-grid adventures or fleet use, the NOCO Boost X GBX155 delivers unmatched performance in a smart, portable package.

GBX155 Specifications

• Starting Current: 4250 Amps (Peak)

• Battery Types: 12 Volt Lead-Acid Batteries

• Internal Battery: 99 Watt-Hour Lithium-Ion

• USB Input: USB-C: 5 Volts 1.5 Amps / 9 Volts 3 Amps / 12 Volts 3 Amps / 15 Volts 3 Amps / 20 Volts 3 Amps

• USB Output: 

  USB-A: 5 Volts 2.1 Amps Max / 10 Watts Max

  USB-C: 5 Volts 3 Amps / 9 Volts 3 Amps / 12 Volts 3 Amps / 15 Volts 3 Amps / 20 Volts 3 Amp

• Gas Engine Rating: Up to 10 Liters

• Diesel Engine Rating:  Up to 8.0 Liters

• LED Flashlight: 500 Lumens

• IP Rating: IP65  (w/ Ports Closed)
• Limited Warranty: 1 Year Hassle-Free Warranty