Compact 1200A battery booster with quick start capability under 3 seconds. Compatible with 12V batteries for gasoline engines up to 6.5L and diesel engines up to 4L. Features integrated 12000mAh external battery pack for charging mobile devices. Includes LED flashlight for emergency situations and 10 comprehensive safety protections. Ultra-lightweight and portable design perfect for personal vehicles, professional mechanics, and emergency roadside assistance kits.