RAVPower Car Jump Starter 14000mAh 550A Peak 12V (up to 5L Gas, 3L Diesel Engine) Booster Battery Charger with 4.2A output Built-In LCD Display & LED Flashlight 550A for Engines with a 12V Battery: 550A peak current works with most diesel engines up to 3L and gasoline ones up to 5L, plus dual 2.1A iSmart USB ports to charge phones, GPS systems, and other USB devices. 14000mAh for up to 20 Jump-starts: Powerful and portable 14000mAh power bank to jump-start your car up to 20 times or fully charge your smartphone multiple times. 360 Protection: Multiple safety protections to protect your car as well as a jump cable smart chip to prevent short circuit, over charge, over current, over discharge, and reverse connection. Smart LCD Display: Keep an eye on power level, charging status, and output voltage thanks to the built-in LCD display. Turn it on and off at your convenience by pressing the power button. LED Flashlight: Built-in LED flashlight lets you flag down passing cars during emergencies. Note: Please, read the user guide carefully before using this product. Not following the instructions may lead to improper use.