Diehard 80/20/10/2 Amp Fully Automatic Battery Charger with Emergency Engine Start (Not Sold in OR or CA)

By: DieHard
Walmart #: 001068650
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  • Microprocessor controlled
  • Fully automatic
  • 5-stage charging process for precise charging and monitoring
  • Gifting note: This item ships in the manufacturer's original packaging. If intended as a gift, the packaging may reveal the contents.

    About this item

    You'll never have to worry about batteries dying on you again with the Diehard 80/20/10/2 Amp Fully Automatic Battery Charger in your garage. This must-have tool delivers 80 engine-start amps to accommodate emergency starting needs. This Diehard battery charger is microprocessor controlled and comes with 2-amp slow charging and 10 amp and 20 amp fast charging settings. You can power-up and maintain a number of items including small batteries, motorcycles, ATVs, snowmobiles and lawn tractors, even though this device is primarily intended for cars, trucks, marine, RV and farm equipment. Other features of the 2 amp battery charger with emergency engine start include float-mode monitoring, a battery and alternator tester, easy-to-use touch pad controls and a digital display and status indicator. The reverse hook-up protection feature shields the device from damage caused by an improper charging connection.

    Diehard 80/20/10/2 Amp Fully Automatic Battery Charger:

    • Microprocessor controlled
    • Fully automatic
    • 5-stage charging process for precise charging and monitoring
    • 80-amp engine start for quick starting
    • 20-amp rapid/10-amp fast charge
    • Ideal for car, truck, marine, RV and farm equipment
    • 2-amp slowithmaintenance charge for charging small batteries
    • Diehard battery charger powers up motorcycle, ATV, snowmobile and lawn tractor batteries
    • Float-mode monitoring
    • Battery and alternator tester
    • Easy-to-use touch pad controls
    • Digital display and status
    • 125-amp
    • Reverse hook-up protection
    • Rust-proof, non-conductive, high impact, molded polypropylene case

    Due to state restrictions this item is not available in California and Oregon


    Battery Type: Does Not Contain a Battery
    Primary Color: Black
    Model No.: DH-20A
    Shipping Weight (in pounds): 14.0
    Product in Inches (L x W x H): 10.2 x 7.2 x 12.0
    Assembled in Country of Origin: Imported
    Origin of Components: Imported
    Walmart No.: 1068650

    Customer reviews

    Customer Reviews | 151 reviews | 4.4 out of 5

    4.5 stars

    151 reviews | 4.4 out of 5

    5 stars
    4 stars
    3 stars
    2 stars
    1 stars
    Would recommend to a friend



    Stunning Effectiveness

    Customer review by ePlum

    5.0 stars by ePlum

    I had no intention of writing a product review for Walmart but after witnessing the success of the Diehard 80/20/10/2 at resurrecting a 2 year dead battery back to full life, I had no choice but to pass on my advice - buy this if you want your money's worth! I originally purchased this (via online order/ship to store, which worked great and helped me avoid checkout lines) to maintain intelligently through the winter the newish deep cycle marine battery I bought in the spring. But before hooking up to the good battery, I thought I would put the Diehard to the test of its claimed ability to sense a bad battery and start a desulfation process. Sure enough, when I hooked it up the Diehard told me the battery was at 0% (in spite of being "charged" a few times 6 months ago). It then went to work, and stalled at 20% charge, but did not flash a failure so I let it continue to work. 2 hours later it jumped to 76%, but stalled there again, with no failure indications. I rode it out for 4 more hours while it sat at that number and then it suddenly started climbing bit by bit all the way to 100% Voila a new backup battery. How can you beat that?

    Was this review helpful? (84) (4)
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    Northern Michigan
    Would recommend to a friend? Yes
    Ownership:1 week or less
    Age:45 - 54
    Usage:A few times per year
    Verified purchaser
    Verified purchaser
    Customer has been confirmed to have purchased the item from Walmart.
    fills all our charging needs.

    Customer review by ashvillehostess

    5.0 stars by ashvillehostess

    We have a small farm and lots of different batteries. Most of the time one of them is dead. We need quick start as well as trickle charge. It is a great product. It is the second one we have owned. Lightning got the other one. Unplug it when not in use!!

    Was this review helpful? (55) (11)
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    Ashville, Al
    Would recommend to a friend? Yes
    Ownership:2 - 7 weeks
    Age:65 or older
    Usage:Every few days
    Awesome value and awesome Charger

    Customer review by Hommie014

    5.0 stars by Hommie014

    I own several older or antique cars and when they sit around for a while the batteries have the tendency to loose some of it's power, now I just plug in my charger put it on the boost mode and you are ready to fire it up!! Or if you are charging a battery that has been dead for a while, just put the charger on it's lowest setting ( 2 amps ) and let it charger for a while and watch how a dead battery comes back to life. Dollar for dollar this is the best charger for it's value. I even dropped my charger accidently from on top of the fender of one of my cars and it survived without a scratch. Now that's a true value for your dollars!!

    Was this review helpful? (33) (8)
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    Hollywood, Florida
    Would recommend to a friend? Yes
    Ownership:2 - 7 weeks
    Age:55 - 64
    Usage:Every day
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    Customer has been confirmed to have purchased the item from Walmart.
    1-3 of 132 total reviews See all

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    Questions will be checked against our question guidelines and posted within five to seven business days.

    My boyfriend wants a battery tester but I seen this on-line and thought it would be better because it says that it has a tester and charger.
    by Erica 11/28/2012
    • this is the product you want then...he would definitely like this!...
      by TotalTony4/12/2015
      Was this answer helpful? (2) (0)
    • If you want a good battery tester, get a "load tester". This will test them but only give an approx condition.
      by rontows4/12/2015
      Was this answer helpful? (3) (0)
      by FCO324/12/2015
      Was this answer helpful? (3) (0)
    • I have used it several times on different vehicles and it seems to work very well. I also have a digital multimeter and the voltage tester on the Diehard shows very comparable readings and also shows percentage (which is nice if you want to monitor a charge). I have only used it on 12V auto batteries. And I have only "topped" off otherwise healthy batteries; have not used it to jump a battery yet (but if I keep maintaining my batteries, maybe I will never have to--instead will follow the rule of thumb to replace the battery after 5-6 years). Some people warned my that if I only used the "trickle" (2A) charge, which is better for the battery, it would take forever. I find that it tops off batteries in just a few hours.
      by betterbegood4/12/2015
      Was this answer helpful? (2) (0)
    • It is easy to use and I like it's price as well as it's features. It is a battery charger first, with testing features. If my girlfriend bought this unit for me, I would be very happy with her.
      by PTODig4/12/2015
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      by gitwood4/12/2015
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    • Yes it does! It also has an alterater tester. A very nice feature.
      by Sprinklebeme4/12/2015
      Was this answer helpful? (4) (0)
    1-3 of 54 questions See all

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