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DieHard Battery Charger/Maintainer

Item# 082W489039110001P | Model# 71219 | Added on January 1, 2000 |
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Description Specifications
DieHard Battery Charger/Maintainer Brings Fully Automated Charging from the Convenience of Your Vehicle Fully automated and lightweight, the DieHard Portable Battery Charger/Maintainer is a great handy tool for use during emergencies. This portable charger is perfect for use on 6 and 12 volt lead-acetate batteries. Keep your batteries fully charged and ready to go when you need them most. Featuring the Float Mode Monitoring, this DieHard Battery Charger/Maintainer prevents batteries from overcharging, while its Reverse Hook-Up Protection makes it safe for continuous performance. This charger includes 50 amp battery clamps which help you maintain batteries of cars, RVs, boats, motorcycles, lawn tractors, ATVs, snowmobiles or antique and classic cars. Bring home this battery charger and start up all your winter equipments with ease.

  • Fully automated, the DieHard Portable Battery Charger/Maintainer is ideal for use on most vehicles
  • Float Mode Monitoring slow charges 6V and 12V batteries at a rate of 2 and 4 amp, and prevents them from overcharging
  • Accessories include 50 amp battery clamps, 12V accessory plug and permanent ring connectors for efficient charging
  • Available in black
  • Item Weight: 2.8 lbs.
  • Three-year free replacement warranty
This product comes with:
Owner's Manual (1)
WARNING: California Residents - Proposition 65
Ratings & Reviews

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(175 Ratings)
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Most Helpful Reviews:

By Moto
November 17th, 2006
Nice little charger.

I purchased this to maintain my motorcycle battery, however it works well for my small car (430 cca) battery too. On both batteries it slowly tapers off the charge (both charged and charging lights on as described in the instructions) as the battery nears full charge; 14.5v for lead acid batteries. If you want to know the health of your battery, check the voltage 24 hours after charging. It should be at least 12.5v at around 60 degrees. If it is less, you battery is starting to show some effects of age. I haven't had to bring a car battery back from the dead (<12v for lead acid), however this is not the correct charger for that task due to its low amp rating. That's why it is called a maintainer. Overall, I'm very happy with it.

9 found this review helpful
By djrdale31
February 22nd, 2009

I have bought about 4 of these in the past 2 years and each one has never lasted more than a few months. The first two I dropped from a height of about 3 feet. They are my fault (even though they should be able to take some abuse) but the other two the condition lights stop working and it freezes on the green fully charged light or no lights at all. I hooked one up the other week to my Harley. It showed a green light. Left it plugged in. Went to start the bike after two weeks. The green light was still on. Guess what?....Dead flippin battery. I also have a battery cutout switch so it wasn't anything on the bike. These things are junk.......I buy alot of Chraftsman stuff but these are terrible.........thanks

19 found this review helpful
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gary stuart
| Earned 322 community points in Sears Doorbusters 2016

Great little charger to keep battery up


It’s great to have to keep up the battery when it gets-10 you know your car will start or the generator will start

December 11th
0 of 0 found this review helpful.
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Rebecca Littlefield
| Earned 7 community points in battery charger


September 25th
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have it



I have 6 of these chargers and have used this style DieHard maintainer for over 5 years. They are easy to use, reliable and I've had no issues at all with any of the units.

October 8th via
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have it

Great product, store couldn't find item


Great product, computer said they have it in stock, sales person could not find product, now i'm waiting for it from the store & they said it would be a few days until they would have it.

August 5th via
0 of 3 found this review helpful.
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have it

Fantastic deal for the price


I utilized this item to charge the pattern on my lawn tractor. It did exactly what it was designed to do; it charged the battery. The nice part was, that it also came with different types of connectors for multiple applications. For twenty-five bucks, you can't beat it!

June 22nd via | The reviewer indicated they are affiliated with this product | The reviewer indicated they received a sample of this product
4 of 6 found this review helpful.
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