NOCO Boost X GBX55 1,750A 12V Jump Starter — 60W USB-C Power Bank, UltraSafe 2.0, Compact (Black)

The NOCO Boost X GBX55 is a 1,750-amp 12V lithium jump starter that safely starts gas engines up to 7.5L and diesel engines up to 5.0L while doubling as a 60W USB-C power bank.

Compact but powerful, the GBX55 blends high-voltage jump-starting with modern convenience features: UltraSafe 2.0 safety circuitry, turbo USB‑C recharge, a multi-mode 200-lumen LED, and a 60‑second energy-conserving timer. Engineered for reliability and rapid recovery, it delivers up to nine full jump starts per charge and can regain enough power for a single start in about five minutes—even from empty.

How much starting power does the GBX55 deliver?

The GBX55 is rated at 1,750 peak amps, engineered to start larger engines reliably. That output targets gasoline engines up to 7.5 liters and diesel engines up to 5.0 liters, making it suitable for many cars, trucks and SUVs.

• 1,750-amp high-voltage output for strong initial cranking.
• Up to nine starts per full charge under normal conditions.
• Gains enough charge for one start in ~5 minutes when fully depleted.
• Integrated 60-second timer to prevent unnecessary drain between attempts.

What safety features protect me and my vehicle?

NOCO’s UltraSafe 2.0 adds layered protections to prevent sparks, accidental reverse polarity, and overheating. The unit’s power management also optimizes thermal performance to preserve battery life and provide safer repeated use.

• Spark-proof clamp connections to reduce accident risk.
• Reverse polarity detection to prevent improper hook-ups.
• Enhanced thermal management for prolonged, safe operation.
• 60-second automatic shutoff to avoid unnecessary current flow.

Can the GBX55 also charge phones, laptops and other devices?

Yes — the GBX55 includes a 60W USB-C Power Delivery port that supports both input and output, so it functions as a fast-charging power bank as well as a rapid charger for its own battery. Use it to top up phones, tablets, laptops and other USB-C devices while on the road.

• 60W USB-C PD for fast charging of phones, tablets, and laptops.
• Dual-direction USB-C: fast recharge of the jump starter and device charging.
• Recharges fully in about 1.2 hours via USB-C PD.
• Compact form factor keeps it glovebox- and trunk-friendly.

What accessories and extras come with the GBX55?

The GBX55 ships ready to use with heavy-duty jumper clamps, a USB-C charging cable, and a microfiber storage bag for neat, protected storage. A built-in 200-lumen LED with seven modes adds practical lighting for roadside work or emergencies.

• Heavy-duty clamps engineered for secure battery connections.
• USB-C cable included for turbo recharging and device charging.
• 200-lumen LED flashlight with SOS, strobe and multiple brightness modes.
• Microfiber storage bag and a 1-year limited warranty; engineered in the USA.

Who is this for? The NOCO Boost X GBX55 is aimed at drivers who want a compact, professional-grade jump starter that also serves as a high-output power bank. It’s a smart pick for commuters, weekend adventurers, fleet operators and anyone who needs fast, repeatable starting power plus on-the-go charging and reliable safety features.