Juno Power's new Jumpr is small enough to fit in a glove compartment, and light enough to carry in a coat pocket or backpack, but is claimed capable of jump-starting a car. And it can charge your smartphone, too.

The Jumpr measures 5.5 x 3 x 0.6 in (14 x 7.6 x 1.5 cm) and weighs 7 oz (0.2 kg). That's not hugely dissimilar to a Samsung Galaxy S5, albeit a bit thicker and heavier. It is certainly a dramatic departure from traditional briefcase-like jump starters and Juno Power says it's the smallest you'll find.

UPGRADE TO NEW ATLAS PLUS

More than 1,200 New Atlas Plus subscribers directly support our journalism, and get access to our premium ad-free site and email newsletter. Join them for just US$19 a year.

UPGRADE

The device houses a 6,000 mAh lithium polymer battery and produces a 12 V output at a peak of 300 Amps. Juno Power says, "300 Amps is enough to jump-start almost all 4-Cylinder and 6-Cylinder engines as well as possibly enough to jump start more depending on type of model."

In addition to jump-starting a car, the device features a 5 V/2.1 Amp USB output that can be used for charging mobile devices such as smartphones and tablets. With its 6,000 mAh battery, the Jumpr should charge a Galaxy S5 (which has a 2,800 mAh battery) more than twice before needing a top-up itself. A flashlight is also featured.

The Jumpr is available now for US$89.99.

The video below shows the Jumpr in action.

Product page: Juno Power Jumpr

View gallery - 8 images