【High performance car jumper starter】Designed for the largest, heavy duty and most challenging engine starts ever. - With over 10000-Amps peak of starting power and support all 12V/24V gasoline or diesel Engines in emergency,including nomal cars,vans, trucks, trailers,factory trucks,yachts,lawnmowers,excavator, tractor,agricultural, construction,auto repair stores,etc. - Note:When starting a 24-volt vehicle, the battery needs to hold more than 75% of charge. 【Forced start mode】The car jump starter has battery voltage detection and"Force Booster" function. - If your car battery voltage is too low to detect even if the battery voltage is 0V(only for use this situation) just press the"EN" button will force the car to restart. 【Full metal housing with 4.5-Inch Screen】Unlike traditional jump starters that only have analog indicators, the V8 jump starter for car battery boasts a large and intelligent 4.5-inch smart screen,AI intelligent voice. - This display provides vital information such as battery level,voltage selection mode, making it more easier and clearer for you to use. - Full metal housing case is dust-proof and shockproof, ensuring durability for outdoor use. Also, ergonomic handle design makes carrying more portable. 【Multifunctional Car Power Pack】Not only a jump box, the V8 also functions as a portable power bank with a capacity of 155WH. It features a 5V/3A Output USB port, enabling fast charging of cellphones, tablets, and other devices. The built-in ultra-bright 400 lumen LED light offers three modes: Lighting, Flash, and SOS, providing illumination and emergency signaling capabilities. 【Enhanced Safety Technology】Fly - Auto car battery jump starter pack prioritizes safety and ease of use. It offers a comprehensive range of protection features in non-forced start mode, including over-charge, over-current, short-circuit, reverse-polarity, low-temp, high-temp, over-voltage, over-load, spark-proof, and reverse-charge protection ensuring safe usage even in extreme temperatures ranging from -4°F to 140°F(-20°C--60°C). The LED display notify you of the correct operation and power level. 【What You Get】The package includes 1 Fly Car Battery Jump Box for All Gas or Diesel with 4.5in LCD Display,24V 12V Potable Heavy Duty Battery Booster with LED Light and Fast Charging Output Full metal housing with 4.5-Inch Screen Multifunctional Car Power Pack It's universal compatible with nomal cars,vans, trucks, trailers,factory trucks,yachts,lawnmowers,excavator, tractor,auto repair stores,etc.