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Tiny Jumpr charges your phone and jumpstarts your car

With the slim and portable Jumpr, you never have to fear running out of juice for either your phone or your vehicle.

This smartphone recharger packs a lot of power. JunoPower

If someone asked you for a jump for a dead car battery and you whipped out your smartphone external-battery recharging gadget, people would think you were crazy. Unless that recharger happened to be the Jumpr from JunoPower, a supremely portable battery pack with enough oomph to take on vehicles as well as smartphones.

There are lots of battery pack options out there for jumping your car, but most are big, bulky creatures that aren't pleasant to haul around. The Jumpr manages to slim in at 7 ounces and is 5.5 inches long, about the size of a chunky smartphone. The 6,000 mAh battery sports a usual USB outlet for juicing up your mobile devices, but also has a 12-volt 150-300-amp output and jumping cables for cars.

There are some limitations on the kind of vehicle the Jumpr can jump. It probably won't help you start up your Jean-Claude Van Damme-splitting Volvo semi truck, but it is good for most cars with four- and six-cylinder engines. A built-in LED flashlight will help light the way if you're stuck in a dark parking space at night.

The gadget can be charged up using micro USB or a cigarette power port on a vehicle. The Jumpr is currently available for preorder until May 1 for $69.99, with the suggested retail price moving up to $89.99 after that.

If you're the kind of person who demands more than a single purpose from your gadgets, it's not a bad combination to consider. It sure beats begging random strangers for jumper cables.