Smartphone-Sized JUMPR can Jumpstart a Car

  Portable power is a lifesaver when a small mobile device like a phone or camera is running low on juice and with JUMPR, really big mobile devices can also get the power they need with a jumpstart. JUMPR is no bigger than a smartphone and packs enough power to jumpstart a dead car battery. Inside the metallic case is a 6,000 milliamp-hour lithium polymer battery that is capable of delivering twelve volts at a peak of 300 amps. With the included jumper cables, that gives JUMPR the ability to start almost all four- and six-cylinder engines. As impressive as that is, JUMPR will be of most use on an everyday [...]