3300R Milwaukee ROLL-ON 7200W/3600W 2.5kWh Power SupplyDescription Our ROLL ON 7200W 3600W 2. 5kWh Power Supply provides the best power for the toughest jobs, instant set up to eliminate gas and temporary power hassles, and provides power anywhere. ROLL ON includes a REDLITHIUM Integrated 2. 5kWh Battery which provides high power and runtime to sustain high demanding applications. This battery is non removable, and no additional batteries are needed. ROLL ON is equipped with (2) 20A GFCI duplex outlets