Skip to content

DieHard Battery Charger/Maintainer

Item# 02871219000P | Model# 71219 | Added on January 1, 2000 |
Sold by
You can earn on this product: $0.26 in points
Go To Seller
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

Overall Rating:

(234 Ratings)
  • 5 Stars
  • 4 Stars
  • 3 Stars
  • 2 Stars
  • 1 Star
  • Read Reviews
Member Photos
No photos yet...

Most Helpful Reviews:

By UnbiasedReviewer
April 15th, 2017
Works well... manual isn't great.

It seems to work well for me. The manual could use some improvement, though. I had a severely discharged 12V battery. When I connected it at the 2A/12V setting, the amber Charging light came on... but after 3-5 minutes, it would switch to flashing and stop sending charge to the battery. A flashing Charging light is not explained in the manual. I thought that the battery or the charger were shot (even though both have barely been used). Here's a tip, though... I unplugged it, switched to the 4A/6V setting and plugged it back in... and the Charging light stayed on. So, I let it charge all day long. When I checked later that day, the battery's voltage had gone from 5.8V to 12.4V. I unplugged the charger, switched to 2A/12V and let it charge for another two hours before the green Charged light came on.

10 found this review helpful
By DixieChopper
October 8th, 2012
Misleading Charger/Maintainer

I've read other people's problems with this charger and Sears doesn't want to stand behind it. They keep saying it's the customers lack of knowlege on what they are using it for. When it's being used first it works fine then the charging light will start to blink/flash which it is NOT supposed to do!! Then once in a while if it does actually work right it will not kick back onto charge if the voltage goes down by running something off of the battery that it is hooked up to. Overall DON'T BUY THIS BRAND OR MODEL!!!

12 found this review helpful
Reviewers may have received a benefit, like a sweepstakes entry or rewards program points, in exchange for writing a review.
Those benefits were not conditioned on the positive or negative content of the review.
Jason Craven
| Earned 7 community points in Best Deals 10-26

Served its purpose


Did absolutely what it stated it would do and worked pretty good I want to say it worked better than a friends that had a better looking model and brand but this one was cheaper and worked just as good if not better in my opinion. Only thing that was a little annoying was the terminal clamps were really small could have been just a tad bigger and had more of a handle to them for better gripping and attachment but worked fine just the same.

22 days ago
0 of 0 found this review helpful.
Join or Sign In to vote
have it

Excellent Product! Typical Craftsman Quality.


I first had doubts about this unit given its small, light weight size, but it restored a completely drained car battery in about 24 hours. It shut off when the battery was completely charged. Easy to hook up, with common sense (!) although the manual could be a bit clearer. Very happy with this trickle charger.

January 21st via
1 of 1 found this review helpful.
Join or Sign In to vote
| Earned 7 community points in Best Deals 10-26

Great tool to have


I've used this tool so many times since I bought it I'm quite surprised I'm very happy with it especially during the winter keeps my batteries charged . I highly recommend anyone who owns a car to have one of these, it will come in handy.

January 15th
0 of 0 found this review helpful.
Join or Sign In to vote

Battery maintains


I have 5 of this units and I leave them on batterys 4 months out of year. GREAT UNITS P.S. good for lawnmower

November 18th via mobile
1 of 1 found this review helpful.
Join or Sign In to vote

Battery chargers


Great item. I purchased 2 of these charger / maintainers. they keep the batteries full charged on item that are not driven enough.

November 16th via
1 of 1 found this review helpful.
Join or Sign In to vote
Questions & Answers (2) See All
Want to know something? Ask a question
Cheryl Azure
DieHard Battery Charger/Maintainer
Sold by
December 14th, 2016
Cody Kiser
By Cody Kiser
August 27th, 2017
David Little
DieHard Battery Charger/Maintainer
Sold by
August 30th, 2013
Answered in 12 minutes
bruce pokropski
By bruce pokropski
August 30th, 2013