Schumacher SL471 Lithium Ion Car Battery Booster 600A 12V Engine up to 4.0L Gasoline / 2.0L Diesel Flashlight Power Bank for USB Charging Powerful and Ultra Compact

4-cell technology: the SL471 lithium booster features Schumacher's patented 4-cell technology for increased instant power up to 600A. This powerful model with Power Bank is portable and delivers 600A peak power and 300A continuously. LED indicators: they show the battery level of the booster/power bank. This lightweight model is ideal for any engine up to 4.0L gasoline and 2.0L diesel, with any type of 12V battery. It can operate up to 15 starts per charge. Optimal functions: Pre-Boost technology safely adds a pre-charge to deeply discharged batteries. Pre-Heat technology warms the batteries in extremely cold environments, allowing for optimal starting. Protections: the booster has protections against reverse polarity, short circuits, overheating, overloading, overvoltage, and sparks. It operates at extreme temperatures (-20°C to +43°C). Fast charging: enjoy 2.4A fast charging via the USB port for your smartphones, tablets, cameras, and other electronic devices. 2x more powerful than a standard USB charger. Powerful flashlight with 3 modes (steady, flash, SOS).