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The MILWAUKEE® M18™ HOTSHOT™ Jump Starter (3841-20) is a groundbreaking automotive solution that redefines reliability and ease of operation in the jump starter category. This always-ready jump starter requires no maintenance or pre-charging, utilizing proprietary technology with internal capacitors and any M18™ battery to prepare for a jump in under 70 seconds. It delivers true all-weather performance, operating consistently from -4°F to 122°F, and its capacitors are rated for up to 500,000 cycles for unmatched durability. Providing up to 2000 peak amps, it can start engines up to 8.1L gas and 3.0L diesel. One M18™ REDLITHIUM™ XC5.0 battery delivers up to 70 jump starts on a single charge. The custom clamp design ensures secure battery terminal connections, and safety features include spark-proof, reverse polarity, and overheat protection. With a digital display for voltage readout and IP65 rating (tool only), this jump starter offers a reliable, maintenance-free solution for automotive needs.