The NOCO Boost X GBX155 is a high-performance portable lithium car battery jump starter rated at 4,250 amps for 12-volt batteries in vehicles up to 10.0-liter gasoline and 8.0-liter diesel engines. Engineered for cars, trucks, SUVs, motorcycles, ATVs, boats, RVs, vans, and tractors, this advanced auto battery jump starter delivers extreme jump starting power and maximum energy transfer with every start. Featuring NOCO’s latest UltraSafe 2.0 technology, the GBX155 offers enhanced thermal efficiency, power management, and upgraded spark-proof and reverse polarity protection—making it one of the safest and most powerful booster pack jump starters in its class. It functions as a portable jump starter power pack with USB-C Power Delivery, enabling lightning-fast recharges and power for your favorite USB-C devices like smartphones, tablets, laptops, and wearables. Go from 0% to jump starting in just 5 minutes of charge—making it the ultimate emergency car battery jump starter for fast-paced lifestyles. Whether you need a self jump starter for car, a battery booster for your truck, or a compact, portable battery jump starter for daily driving and adventure, the GBX155 is built to deliver unmatched speed, safety, and starting performance wherever you go.
- X FOR EXTREME — An all-new design with extreme jump starting power for powerful engine starts. Rated at 4250-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.
- TURBO CHARGEABLE — Boost X is equipped with USB-C technology that, combined with power delivery, gives you lightning-fast recharges. Completely recharges in just 2.7-hours, or go from 0% to jump starting in just 5-minutes of charge.
- CHARGE 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 your 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.
- MAXIMUM VERSATILITY — Boost X is one of the most versatile lithium jump starters ever. Jump start all vehicle types, including cars, motorcycles, trucks, ATVs, boats, RVs, vans, SUVs, tractors, and more for up to 10.0-liter gasoline and 8.0-liter diesel engines.
- IN THE BOX — Inside, you will find a GBX155 portable jump starter with battery booster clamps, a USB-C charging cable, and a microfiber storage bag. It also comes with a one-year warranty and is proudly designed in the USA.
