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The lights are out. The mutated alien horde is coming. You need power for the Tesla cannon. This is when you’re really glad Duracell’s Powerpack DPP-300EP is sitting on the basement shelf. Essentially a small car battery powering a 120V AC inverter and a 250 psi compressor, it can even fill your truck’s tires for a mad dash to the burnt-out supermarket for a scavenging run. Just watch out for the stray dogs.

Back in the real world, where a greasy, sweat-streaked Bruce Willis won’t be defending his homestead anytime soon, the DPP-300EP will set you back $78 from Amazon, and Duracell isn’t exactly a poorly-regarded name. Keeping one of these charged and ready to go can be a treat, since even the best batteries slowly discharge over time.

Keeping it in your car can be a serious frustration-saver, if you remember to remove it for a recharge every two weeks. It’s worth the effort for a finicky old Sunbeam Tiger, perhaps, but not for a brand-new Chevy, especially since Duracell only recommends using the battery for 4 and 6-cylinder engines. However, they make larger versions like the DPP-600HD which can handle “most 8-cylinder engines,”but you’ll pay $137 and lose the air compressor. So, one for your Civic, and one for your Cutlass 442.

Duracell Powerpack 300 Via Amazon [What’s This?]
Duracell Powerpack 600 Via Amazon [What’s This?]
Duracell Battery Chargers [Duracell]

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7 Responses to Duracell Powerpack 300

  1. Shopmonger says:

    I have had a few of these, the only problem is the internal batteries can go bad. I think that they have gotten better in the past few years, but still, unless you have a fleet of cars, or won a shop, you will use very littler

    ShopMonger

  2. KMR says:

    ” It’s worth the effort for a finicky old Sunbeam Tiger, perhaps, but not for a brand-new Chevy, especially since Duracell only recommends using the battery for 4 and 6-cylinder engines. ”

    Insert Sunbeam Alpine in place of Tiger, as the Alpine had the small 4 cylinder and the Tiger had a massive American V8.

  3. Jaxx says:

    How many years are the more well known brands batteries good for? I carry a plug in compressor in the car, but I could upgrade to a compressor/jumper to save me waiting for my trickle charger.

    Only if they last that is, i assume you can charge them off the lighter socket.

  4. Jim K. says:

    @Jaxx

    From what I’ve read, the better name units batteries should last around 10 years if properly maintained (i.e. cycled occasionally). The cheap ones can die in less than 5 years.

  5. lens42 says:

    I put this review up at Amazon after a not-too-great experience: After 3 day charging, A 65 Watt light bulb lasted only 13 minutes, then a low battery alarm. I then charged for 2 more days and got the same result. I called Xantrex tech support (Though the box is sold as Duracell, the tech support number in the manual is for Xantrex – BTW, kudos to them for a real person answering the phone). They said first charge from a car for 2 hours (I was using the AC adapter). I plugged it into my car lighter socket, but the charge light did not come on. It did light when AC charging, so I checked the battery voltage with a meter. The problem was that the battery read over 13V, so it was already higher than my car battery. That was enough trouble-shooting for me, so I returned the Powerpack.

    Here’s what I think is wrong with this product. Gel cells (the battery inside the Powerpack) can’t sit for a long time in storage without charging because their internal resistance goes up (something called sulfation). When that happens the battery can seem fully charged, but it isn’t because the resistance prevents it from really charging. I don’t think these Powerpack products move out the door rapidly enough, so many sit in storage too long before being sold. If you are lucky, you’ll get one that hasn’t been stored too long and won’t have a problem. Unfortunately for me, I wasn’t lucky and I’m unwilling to spin the wheel again.

    To Duracell/Xantrex: You need to fix this problem by switching to a battery type that doesn’t have these basic weakness. Lithium batteries would be ideal. It would raise the price of the box, but it would be worth it because you could get more power in the same size with less weight. Also consider that far fewer Powerpacks would be returned. That’s got to save you some cash, yes? I’m ready to buy a Lithium powered one, even at $200, but don’t make me wait too long.

    • bob says:

      agree completely…a complete piece of junk….barely used….did not charge for a few months….when you plug in ac adapter…says/indicates its fully charged….compressor does not work….led lights go on briefly..than go out….its as if not taking a charge at all….disgusted…paid over 100 bucks….what can i do

  6. ambush says:

    lens42, charging it off your car battery probably didn’t work because your car wasn’t running.

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