Milwaukee 3841-20 M18 18V HOTSHOT Jump Starter

The Milwaukee M18 HOTSHOT Jump Starter (Model 3841-20) stands ready whenever you need it—no charging delays, no prep needed. Built with advanced supercapacitor technology, it delivers a powerful 2000 peak amps burst, equipped to jumpstart engines up to 8.1L gas or 3.0L diesel. It fits any M18™ battery (XC5.0 or higher), delivering up to 70 jump starts per charge.

Compact and jobsite-tough, this unit includes built-in clamps and a carrying handle, all packed into a dust- and water-resistant housing. Safety features like spark protection, reverse polarity, and overheat defense ensure reliable use in any condition. Whether you're on-site or roadside, it’s engineered to keep moving without interruption.

• Instant, Always-Ready Start – Delivers up to 2000 peak amps instantly—no pre-charging or maintenance required.
• All-Weather Reliability – Performs consistently in extreme conditions, from -4°F to 122°F.
• Ultra-Durable – Supercapacitors rated for up to 500,000 cycles, offering unmatched longevity.
• Compact & Portable Design – Measures 11.5″ long × 8.7″ wide × 4.2″ high, and weighs just 6.9 lbs, with integrated clamps and a retractable carry handle.
• Efficient Battery Use – A single M18 XC5.0 REDLITHIUM™ battery (sold separately) can deliver up to 70 jump starts.
• Top Safety Features – Includes spark-proof design, reverse polarity protection, overheat protection, and digital voltage display.
• Versatile Capability – Jumpstarts up to 8.1L gas and 3.0L diesel engines with ease.
• Built for the Trades – IP65-rated for dust and water resistance, designed for rugged jobsite use.
• Digitally Controlled – Features user-friendly controls and real-time voltage readout for precise operation.
• Backed by Warranty – Comes with a 3-year limited factory warranty.