Be prepared for emergencies with the Reactor 12 volt multi-function automotive power bank. This power pack comes in a convenient storage case, making it a handy travel companion. It has the ability to jumpstart a 12V vehicle, charge your mobile phone, power up your automotive equipment and can even serve as an LED light. A quick-charge option for mobile phones helps you stay connected on the go. Depending on the temperature it's stored at, the lithium ion battery in this portable power bank will hold a charge for up to three months.