The NOCO Boost Max GBX55 12V 1750A UltraSafe Lithium Jump Starter from Nomadic Supply Company is a portable lithium jump starter for 12-volt batteries in vehicles up to 10.0-liters gasoline and 8.0-liter diesel engines, including camper vans, cars, motorcycles, trucks, ATVs, boats, RVs, vans, SUVs, tractors, and more.
X for Extreme – An all-new design with extreme jump-starting power for fast and powerful engine starts. Introducing a new kind of jump-starting experience, featuring our latest PX Lithium Technology that delivers incredible power, ultra-fast charging, and unmatched versatility.
This isn’t an upgrade. It’s a whole new series – BOOST X with more starting power. The new Boost X combines tremendous power with unmatched ease of use, versatility, and maximum conductivity.
Turbo Chargeable – Boost X is equipped with USB-C technology that, combined with power delivery, gives you lightning-fast recharges. Completely recharges in 2.7 hours, or go from 0% to jump starting in just 5 minutes of charge.
Power Everything – With USB-C Power Delivery, you have the power to charge almost everything. Its internal power bank provides 60 watts of power – both in and out – to effortlessly power our favorite USB-C devices, like phones, tablets, laptops, wearables, and more.
UltraSafe 2.0 – We took our UltraSafe technology and made it better. It’s still our simple, mistake-free design featuring spark-proof technology and reverse polarity protection, but with enhanced thermal efficiency and power management to provide better performance and longer battery life.
Compatible – Boost X is one of the most versatile jump starters ever with 4250-amps of starting power for up to 10.0-liter gas and 8.0-liter diesel engines.
NOCO Boost Max GBX55 12V 1750A UltraSafe Lithium Jump Starter Features:
- An all-new design with extreme jump starting power for powerful engine starts. Rated at 1750-amps, this portable lithium car battery jump starter releases maximum energy at every start. This isn’t an upgrade. It’s a whole new series – the Extreme Series.
- Equipped with USB-C technology that, combined with power delivery, gives you lightning-fast recharges. Completely recharges in just 1.2 hours, or go from 0% to jump starting in just 5 minutes of charge.
- Charge everything with USB-C Power Delivery. Its internal power bank provides 60 watts of power – both in and out – to effortlessly power your favorite USB-C devices, like phones, tablets, laptops, wearables, and more.
- We took our UltraSafe technology and made it better. It’s still our simple, mistake-free design featuring spark-proof technology and reverse polarity protection, but with enhanced thermal efficiency and power management to provide better performance and longer battery life.
- It’s one of the most versatile lithium jump starters ever. Jumpstart all vehicle types, including cars, motorcycles, trucks, ATVs, boats, RVs, vans, SUVs, tractors, and more for up to 7.5-liter gasoline and 5.0-liter diesel engines.
NOCO Boost Max GBX55 12V 1750A UltraSafe Lithium Jump Starter Includes:
- GBX55 Lithium Jump Starter
- HD Precision Battery Clamps
- 24in USB-A to USB-C Cable
- Microfiber Storage Bag
- User Guide & Warranty Information
NOCO Boost Max GBX55 12V 1750A UltraSafe Lithium Jump Starter Specifications:
Starting Current
1,750 Amps (Peak)
Battery Types
12 Volt Lead-Acid Batteries
Internal Battery
46 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 A / 15 Volts 3 Amps / 20 Volts 3 Amps
Gas Engine Rating
Up to 7.5 Liters
Diesel Engine Rating
Up to 5.0 Liters
LED Flashlight
200 Lumens
Product Size
Height: 4.90 Inches (124.5 mm)
Width: 7.66 Inches (194.5 mm)
Depth: 2.50 Inches (63.5 mm)
Weight: 2.58 lbs (1.17 kg)
IP Rating
IP65 (w/ Ports Closed)
Limited Warranty
1-Year Hassle-Free Warranty
NOCO Boost Max GBX55 12V 1750A UltraSafe Lithium Jump Starter Documents:
NOCO Boost Max GBX55 12V 1750A UltraSafe Lithium Jump Starter Owners Manual
NOCO Boost Max GBX55 12V 1750A UltraSafe Lithium Jump Starter Data Sheet
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to