The UTRAI JS-10 Portable Car Jump Starter is a powerful and convenient solution for jump-starting cars with a 6000A capacity and peak amps of 7000. Its compact design makes it portable and easy to use, with included clamps for connecting to batteries. This unit, with a capacity of 26800mah and a voltage of 12V, is manufactured in China and is a reliable tool for troubleshooting and charging vehicle batteries. Box open, never used, tested, in perfect working order. Box not perfect.