Portable Jump Starter

By JunoJumper

$99.95 $89.96 More on the way


Cell phone-sized ultra-powerful battery pack. Recharge your cell, jumpstart your car. You’ll always have power.

  • Material: ABS Lithium-Polymer Battery
  • Includes: Jumper cable, manual, USB cord, wall AC adapter
  • Small, portable car jumper, 6000 mAh
  • JunoJumper's V2 Edition has been upgraded with a more advanced Japanese Seiko ICU
  • Brighter LED flashlight with SOS functionality
  • Upgraded Smartec cable—smarter and more compact; if you forget to disconnect the Jumper2 after you start your vehicle, the cable will beep and disconnect/shut off the connection (red light will appear)
  • Features a USB 5V 2.1A output
  • Cables have indicators that tell you if the car is ready or not to jump, and include a boost button to jump start completely dead batteries
  • Full charge in 5-6 hours
  • Operating temperature: -4 to 140 degrees F
  • Should not be used on higher than 0.92 gallon engine
  • Not recommended for use in wet conditions, use at your own discretion
  • Protective Carrying Case available for purchase separately
  • Made in China
  • Dimensions: 5.3 x 3.1 x 0.6
  • Weight: 0.46 lb.
  • Note: Do not try jumping vehicles that require more than 300 amps of power, such as V8 trucks or diesel trucks, as it may be harmful to the JunoJumper and battery

To Go With Portable Jump Starter

11 Reviews (4.8 out of 5 Grommets)

Sorted by Rating

I’m a widow and a senior citizen. This little device has been invaluable it me.


I have astounded more than one would-be helper when I started my car all by myself with this tiny gadget. I wouldn’t be without it!


Small and powerful


This was a gift for my son. He loved it.


So easy to use!


This small device packs a big punch. It's so much easier to jump start a car with this.


Saved me more than a few times


This is one of the most convenient devices I've ever owned. Power stays idle for what feels like 6 months to a year. Saved me more than a few times this past winter before I realized my battery had to be replaced.More > < Less


Safe 'n Mobile


Nothing worse than having your car battery die in the midst of stalled, rush hour traffic. This little life-saver, and it's case, make for the perfect mind-relieving car accessory.More > < Less

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Junojumper - Portable Jump Starter

About JunoJumper

The Juice

The JunoJumper is a portable battery pack, with enough power to jumpstart most 4- or 6-cylinder cars. 12 volts, 300 amps, all in a pack roughly the size of a cell phone (and it charges those, too).

Here at The Grommet we put JunoJumper to the test. Fortunately, our offices are right next to a body shop. We plugged it into a long-idle vehicle. Fired right up.

And we didn’t need extra cables, because JunoJumper comes with a set. It also comes with an innovative SMARTec cable that indicates when your car is ready to jump. Plus there’s a LED-light to help operate in the dark, if you weren’t lucky enough to kill your battery during daylight.

The JunoJumper includes a USB port as well. Use it to bring your phones and tablets back to life. Obviously, it's up to the task. As for charging the JunoJumper itself? That can be done with a car charger, or via the included micro-USB cord. It’s like a circle of power.