About this item Start Dead Batteries: High-performance Car Jump Starter has powerful 8000A peak current, is designed for 12-volt vehicles, capable of jump-starting 10-liter gasoline and all cars up to 60 times on a single charge. It functions perfectly in extreme temperatures ranging from -4â to 140â, ensuring reliability in all weather conditions. The jump box for car battery standby for about 24 hours.Safety Multi-protection: Portable Battery Booster adopts smart chip and has 10 safety protections without worrying about incorrect connections or sparks, including over-charge, over-current, short-circuit, reverse-polarity, low-temp, high-temp, over-voltage, over-load, spark-proof, reverse-charge. Auto detect connection and real-time visible indicator, notifies you of incorrect use with flashing lights, fully protect you and batteries from any improper operations.Portable and Multifunctional: The Portable Car Jump Starter with air compressor is equipped with an efficient turbocharger system of 35L/Min (150 PSI), which can continuously provide fast and appropriate inflation for car tires, sports balls, etc. Press the jump starter light button can switch 3 LED light modes (Flashlight, SOS, Strobe), perfect for nighttime emergencies or outdoor adventures, also dual Type-C ports for charging mobile devices.What's in the Box: BUVAYE BN03 jumper pack (1* jump starter, 1* smart jumper cables, 1* 13.8'' anti-scalding hose, 1* Presta to Schrader adapter, 1* needle adapter*1, 1* short tapered nozzle, 1* long tapered nozzle, 1* USB charging cable, 1* EVA carrying case, 1* User manual).After-Support: BUVAYE offer 1 year product quality maintenance and lifetime technical support. We recommend: 1. Charge the Jump starter every two months if you do not use it for a long time. 2. When this product becomes very hot, cool it for 10 minutes before continuing to inflate the tire. 3. Keep the battery starting power above 50% for better starting efficiency. For any questions or concerns, please feel free to contact us.