🚗4250A Heavy-Duty Lithium Jump Starter for Gas & Diesel Engines

Power That Performs When It Matters Most

Dead battery? No problem. This is built for drivers who refuse to be stranded. With 4,250 amps of peak power, it jump starts gas engines up to 10.0L and diesel engines up to 8.0L — safely, quickly, and without the need for another vehicle.

🔋 X for Extreme — 4,250A Peak Power

A new class of lithium jump starter engineered for extreme conditions. Whether you’re driving a pickup truck, an RV, or a diesel workhorse, the GBX155 delivers the muscle to get you moving again.

⚡ Turbo Chargeable — Ready in Minutes

Fully recharges in just 2.7 hours via USB-C Power Delivery. Even from a completely dead unit, you’ll have enough power for a jump start in as little as 5 minutes. No waiting around.

📱 Charge Everything — Your All-in-One Power Bank

With 60W USB-C Power Delivery, the GBX155 charges phones, tablets, and laptops just as easily as it starts your engine. Dual-direction charging means it works as a high-output portable power bank wherever you go.

🛡️ UltraSafe 2.0 — Smarter Protection, Every Time

Safety is built in, not bolted on. Upgraded spark-proof technology and reverse polarity protection mean you can connect the clamps with confidence — even in the dark, even under stress. Enhanced thermal efficiency keeps the unit running longer and lasting further.

⏱️ 60-Second Timer — Up to 18 Jump Starts Per Charge

The integrated 60-second timer intelligently conserves power from the high-voltage design, so you get the most out of every charge. Up to 18 jump starts before you need to recharge.

🔦 Integrated LED Flashlight — 500 Lumens, 7 Modes

Precision-engineered with 500 lumens and 7 light modes — including SOS and strobe — so you’re never left in the dark during a roadside emergency or late-night repair.