NOCO Boost X GBX155 4250A 12V UltraSafe Lithium Jump Starter, Up to 10.0L Gas and 8.0L Diesel Engines

4250A 12V Boost X

UltraSafe Jump Starter

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. The new Boost X offers more starting power and unleashes maximum power delivery for the most demanding starts. Paired with USB-C Power Delivery technology to recharge insanely fast.

Extreme Power

An All New Boost Series

Unmatched Versatility

• Rated at 4250A
• Up to 10.0L Gas Engines
• Up to 8.0L Diesel Engines
• Jump Start 12V Batteries

Fast Charge

0% to Boost in 5 Minutes

Charge Up to 5X Faster

Boost X is now turbo-chargeable. It is equipped with USB-C technology that, combined with power delivery, gives you lightning-fast recharges. Completely recharge the GBX155 in 2.7 hours, or go from 0% to jump starting in just 5-minutes of charge. With Boost X’s 60W USB-C input and output, it is possible to charge up to 5X faster. Use compatible chargers up to 60W to increase your charging speed.

Auto Power Conservation

Start Vehicle Within 60 Seconds

Start the vehicle within 60 seconds after pressing the power button on Boost. After the 60-second timeout is complete, the unit must be powered off, then back on, to initiate a new jump-start sequence. The yellow power LED indicates the 60-second sequence is over and can be reset if another jump start sequence is needed.

Reverse Polarity Protection

Spark-Proof

We took our UltraSafe technology and made it better— UltraSafe 2.0. 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.

Charge Devices

Up to 60W Fast Charging

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.

Ultra-Bright

More than a jump starter, Boost X is a useful tool for daily use and emergency situations alike. The GBX155 is equipped with a 500-Lumen LED flashlight with various brightness modes, SOS, and emergency strobe— handy to have as a roadside or road trip tool.

• 500 Lumens

What's in the Box

• GBX155 Lithium Jump Starter
• Integrated HD Precision Battery Clamps
• 24in USB-C to USB-C Cable
• 24in 12V to USB-C Cable
• Microfiber Storage Bag
• Safety & Warranty Information

Tech Specs

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 Amps

Gas Engine Rating

• Up to 10 Liters

Diesel Engine Rating

• Up to 8.0 Liters

LED Flashlight

• 500 Lumens

Product Size

• Height: 6.89in (175mm)
• Width: 12.03in (305.6mm)
• Depth: 2.72in (69.1mm)
• Weight: 5.82lbs (2.64kg)

IP Rating

• IP Rating: IP65 (w/ Ports Closed)

Documents

• GBX155 User Guide (PDF)
• GBX155 Data Sheet (PDF)

Fitment Table

Frequently Bought Together

Reviews