About this item

• RELIABLE JUMPSTARTING PERFORMANCE: The AstroAI B8 jump starter powe pack can jump-start vehicles in extreme conditions ranging from -20℃ to 50℃ (-4℉ to 122℉). This jump starter powe pack easily jump-starts 7L petrol and 5.5L diesel engines, including motorcycles, sedans, SUVs, and other vehicles
• COMPREHENSIVE SAFETY DESIGN: This car battery jump starter power pack is equipped with 10 built-in protections to ensure your safety. These include reverse polarity, overcurrent, overcharge, overdischarge, high & low temperature protection, reverse connection, overvoltage, overload, short circuit, and spark-proof protection
• COMPACT AND PORTABLE: Weighing only 329g, this compact car jump starter power pack is a must-have for practical car accessories. It’s easy to carry and store anywhere, even in tight spaces, making it an excellent tool for both outdoor activities and emergency situations
• EASY TO JUMPSTART: Insert smart battery clamps fully into the jump starter powe pack. Connect red clamp to battery positive (+), black to negative (-). Operate the jump starter by clamp indicators: Green light: Connection correct, safe to use; Red light + beep: Reverse connection. Reconnect terminals correctly. When clamp indicator is green, jump-start the car. After successful jump-start, disconnect the clamps
• 5-IN-1 MULTIFUNCTIONAL: Beyond a battery jump starter power pack, it works as a portable power bank for your devices. The built-in LED delivers 3 practical modes: steady work light for roadside repairs, SOS for signaling help, and strobe for hazard warning—keeping you safe and visible in any emergency
• FULL SET OF ACCESSORIES: This package comes complete with B8 jump starter powe pack, smart battery clamps, a USB-A-C cable, a user manual, and a storage bag
• WARM TIPS: Turn off all vehicle devices before jump-starting. If the engine doesn't start within 5 seconds, stop and remove the cables immediately. Do not leave the smart clamp plugged into the EC5 port (it drains power even when the vehicle is off). Do not use EC5-to-cigarette-lighter or any EC5 adapters to power dashcams or other devices – this will drain the battery to 0V and make it unchargeable. Use a 5V/2A charger (original cable preferred). Charge at 0–45°C. Recharge when battery is at 1–2 bars to prevent deep discharge. For best battery health, top up every 3 months