NOCO GB250 Boost Max 5250A Jump Starter

5,250A UltraSafe Lithium Jump Starter

The NOCO GB250 Boost Max delivers 5,250 amps of portable jump starting power — built for the largest gas and diesel engines on the road, water, or job site. Compact enough to carry, powerful enough to handle semi-trucks, motorhomes, and heavy equipment.

• 5,250A peak current — tackles gas and diesel engines up to 45L, including semi-trucks (Class 8), buses, coaches, and construction equipment.
• UltraSafe technology — spark-proof connections and reverse polarity protection for safe, mistake-proof use on 12V and 24V batteries.
• Integrated digital voltmeter — real-time battery diagnostics at a glance.
• Built-in USB power bank — recharge smartphones, tablets, and USB devices on the go.
• Ultra-bright LED flashlight — 2,200 lumens with 7 modes including SOS and emergency strobe.
• Surprisingly portable — high-discharge lithium technology keeps weight to just 24 lbs despite commercial-grade output.