- Stanley 300 amp battery jumpstarter - Jump start your battery without another car - Built-in 120 Volt AC charger, recharges unit with standard household extension - 270° Pivoting high powered LED emergency light - Reverse connection warning provides audible and visual alarm - 12 Volt and USB power outlets - Enough power to start cars, small trucks, motorcycles and recreational vehicles with 12 volt battery systems - Heavy duty metal clamps and cables