NOCO GBX45 Boost X — 1,250A 12V Extreme Series Lithium Jump Starter

NOCO GBX45 Boost X — 1,250A 12V Extreme Series Lithium Jump Starter

The NOCO GBX45 Boost X is part of NOCO’s Extreme Series — engineered from the ground up for maximum energy output at every start. At 1,250 amps, it handles gas engines up to 6.5 litres and diesel up to 4 litres, and recharges fully in just 48 minutes via USB-C. The fastest-charging jump starter in its class, the GBX45 is built for drivers who want Extreme Series performance in the most compact package possible.

Key Features

• 1,250A peak starting current — gas engines up to 6.5L and diesel up to 4L; cars, trucks, SUVs, ATVs, boats, RVs, tractors, and more
• Ultra-fast USB-C recharge — fully charges in just 48 minutes; 5 minutes of charge delivers enough power to jump start
• 60W USB-C Power Delivery — charges phones, tablets, laptops, and wearables both in and out
• Enhanced UltraSafe technology — spark-proof, reverse polarity protected, with improved thermal efficiency and power management for longer battery life
• Extreme Series platform — completely new architecture engineered for maximum energy release at every start

Specifications

• Peak Current: 1,250A
• Compatible Engines: Gas up to 6.5L, Diesel up to 4L
• Recharge Time: 48 minutes (full); 5 minutes (jump-ready)
• USB-C Power Delivery: 60W in/out
• Warranty: 1-Year Limited

Ideal For

• Everyday drivers wanting the fastest-charging Extreme Series jump starter
• Cars, crossovers, and light trucks needing compact but powerful starting backup
• Anyone upgrading from the GB40 to the latest Extreme Series technology

Ships from Thunder Battery — Canada's trusted battery and energy storage dealer.