Never get stuck with a dead car again with the Cyntur JumperPack Mini Jump Starter. Super handy, this ultra compact jump starter comes pre-charged with a 12000 mAh lithium ion battery. The JumperPack Mini delivers 250 cranking amps of starting power to get you running again. Working with engines with four, six, and eight cylinders, the JumperPack Mini features SafeJump battery clamps, with on black and one red, to prevent over-current and reverse charge. Because your car isn’t the only piece of equipment with a battery, the JumperPack Mini also has a 2.1A USB port to conveniently top up your smartphone or tablet. To help you in these adverse conditions, the JumperPack Mini is also equipped with a 200 lumen LED light built in to be used as an emergency strobe or a flashlight.