By now there are countless backup batteries on the market that promise to revive a dead smartphone when there's no power outlet in sight. But the JUMPR promises to be there for another thing you probably never leave home without—your car.
With 6,000 mAh of power, you can actually recharge a couple of smartphones or bring a tablet back to life through its USB charging port. But since the JUMPR also provides 12 volts of power at a peak of 300 amps, it can also be used to jumpstart most four- and six-cylinder engine vehicles. So if you accidentally left your headlights on, you don't need to flag down another vehicle or drag out some heavy booster kit.
And at $70 (£42) when it's available on May 1st, it's not an expensive proposition to keep a fully charged JUMPR in your backpack and your car's glovebox at all times. It even comes with a set of proprietary jumper cables so you don't need to borrow a set from a friend, or steal them from your neighbour's open garage. [Juno Power]