A portable jump starter pack isn’t something you think about needing – until you need it. I was in a situation like that not too long ago while fishing a remote stretch of river. My buddy’s truck wouldn’t start, and we would’ve been waiting for someone to come around with jumper cables for days. Luckily, my buddy had a portable jumper, and we were back on the road in a few minutes.

If you want to safeguard against situations like that – and charge all your electronic devices, too – then look no further than the Cobra JumPack XL H2O. It packs enough power to jumpstart a V8 motor, including those in motorhomes, RVs, boats, ATVs, motorcycles, and snowmobiles. Regardless of what toy you’re playing with on a given day, the JumPack XL H2O will jump it.

And, as the name implies, it’s built to withstand all weather types. You won’t have to worry about pouring rain or using this product on the lake or the ocean.

But enough of the general overview. Look deeper at the features packed into the Cobra JumPack XL H2O.

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Multiple Jumps Per Charge

Any good jumpstarting kit should have the reserve power to start multiple batteries on a single charge. The JumPack XL H2O boasts a 400A starting current, and Cobra claims you’ll get at least three jumps on a single order. Throughout my use, that turned out to be true.

The Cobra also holds a charge for a longer time than other jumper kits on the market. I have a jump starter kit in my wife’s car, which must be recharged every six months. Based on my research, the Cobra can go out for about eight months.

Two Jump Options

Not all of us are as handy with vehicles as we’d like. Opening the hood of a car and staring into the abyss can be understandably intimidating for someone who hasn’t spent most of their life working on cars.

If you don’t feel comfortable using the posts on your battery under the hood to jump your car or boat, this Cobra JumPack XL’s unique design allows you to do it from inside your vehicle. That’s right – all you have to do is plug in the jump kit to your 12-volt cigarette lighter and follow the directions. This results in the car turning right over.

Of course, you can jump your dead battery the traditional way. The purchase of this jumper pack includes the 12-volt adapter and jumper cables.


What sets this jumper pack apart from the rest is the versatility with which it’s built. Cobra decided not to limit themselves to building a jumper suited for cars. This JumPack XL H2O is made to handle jumping any vehicle you can own. Short of a monster truck, the JumPack XL H2O should take your boats, RVs, motorhomes, jet skis, snowmobiles, motorcycles, cars, pickup trucks, cargo vans, and ATVs.

Works in All Weather

Often, when you’re having engine troubles far away from anyone who could help jump your vehicle, the weather isn’t cooperating, either. I once spent a long, cold night in my truck, waiting for someone to drive by and jump it. This was well before I started carrying my jumper kit with me.

The JumPack XL H2O is built to work in all types of weather and in various environments, too. Whether you’re out on the local lake and your battery dies in your outboard or chasing big fish with fly rods in the salt flats of Florida, the JumPack XL H2O won’t let you down. It’s built to keep all the circuitry wholly enclosed and protected, meaning a malfunction is almost impossible. The last thing you need to worry about when using this product is your safety, which Cobra embraces with this jumper pack.

Charges USB Devices

Whether you need your phone back on to call for help or keep a tablet charged so the kids have something to watch, the JumPack can help out here, too. It has two USB ports, charging two different devices simultaneously. In most cases, assessing your devices won’t drain the battery so much that you can’t jump your vehicle afterward.

Wrapping Up

The Cobra JumPack XL H2O is one of the best jumper kits. I love how versatile it is and the built-in flashlight. It’s a nice little touch that shows Cobra is designing products with the users in mind. You also can’t overlook the power this thing packs in a tiny package. It won’t take up tons of room in any vehicle, which is another essential feature of a good jumper pack.

And, given the price, it’s a steal of a deal. I’d jump on this if you’re in the market for portable power.