Jumper2 - Matte Black Case of 5

Reviews (4.9 out of 5 Grommets)

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8/16/2020 by clifford

A giant punch in a little package! Worked first time I used it !


Could be a lifesaver...or just really handy!

9/26/2019 by Julie

I bought this awhile ago, just in case...and that case came up when I went to see my sister. Her car's battery had died, facing in, in a small garage. There was no way to get another car close enough to jump it, and then I remembered I had this in my car! Even though I charged it months ago, it was nearly fully charged. I followed the instructions and it worked like a charm! I highly recommend it and the separate case. It takes up little space in my car and can also charge my phone or something else in an emergency....plus it has a strobing flashlight that can draw attention to you if you need help at night.



2/13/2019 by Gladys

This Juno Jumper has been a life saver for us and for my niece. It does its job very well!


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

12/3/2018 by Sabrah

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

7/25/2018 by Bev

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


So easy to use!

2/11/2018 by Suzanne

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

9/21/2017 by Ryan

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.


Safe 'n Mobile

8/28/2017 by Sherrill

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.


Portable Jump Starter

1/17/2017 by julie

My husband was shockingly thrilled with this gift!



12/9/2016 by Kelly W.

I have one and purchased two for my kids cars. The Juno Jumper has already proven it's worth. Love This Product!

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The JunoJumper Story

Junojumper - Portable Jump Starter

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.
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