For high-displacement gas and diesel engines in trucks, semis, buses, hgv, fleet, commercial vehicles, construction equipment and more.Ultra-safe, compact, and portable lithium-ion jump starter for both 12V and 24V battery systems. Features patented spark-proof technology and reverse polarity protection.Built for gas & diesel engines in Class 8+/CE high displacement vehicles, equipment, trucks & more. Safe for engines of all sizes.Provides remote power for 12V devices (e.g. tire pumps) and recharges mobile devices, like smart-phones, tablets & more.Jump starts 12V/24V switchable 12V & 24V modes, designed for high-displacement engines, covering most applications.Voltmeter: Built-in voltmeter displays the voltage of the vehicle's battery for enhanced diagnostics and troubleshooting. High-intensity LED work light: 2200 lumen ultra-bright LED work light for extreme visibility. 7 light modes, including SOS and emergency strobe.