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BatteryMINDer Maintainer/Desulfater - 2 Amps for 48V Systems, Model# 48021

4.6 out of 5 stars 17 customer reviews
| 4 answered questions

Price: $293.99 & FREE Shipping. Details
Only 1 left in stock.
Sold by Tru Inertia and Fulfilled by Amazon in easy-to-open packaging. Gift-wrap available.
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  • Picks up where your equipment manufacturer's supplied bulk charger leaves off for lasting maintenance and desulfation
  • Never use BatteryMINDer at the same time as your standard golf cart charger - disconnect your standard charger before using BatteryMINDer
  • Ambient temperature sensing adds years to battery life and performance by eliminating over/under charge, regardless of temperature (0deg F to +130deg F)
  • Temperature compensation ensures proper charge in hot or cold environments
  • Microprocessor controlled; simple push-button operation with battery diagnostics indicators
3 new from $293.99
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$293.99 & FREE Shipping. Details Only 1 left in stock. Sold by Tru Inertia and Fulfilled by Amazon in easy-to-open packaging. Gift-wrap available.

Frequently Bought Together

  • BatteryMINDer Maintainer/Desulfater - 2 Amps for 48V Systems, Model# 48021
  • +
  • E-Z Red SP101 Battery Hydrometer
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  • Plews 75-030 Auto Shut Off 2 Quart Capacity Plastic Battery Filler
Total price: $323.63
Buy the selected items together

Product Information

Technical Details

Brand BatteryMINDer
Item Weight 3.1 pounds
Product Dimensions 10.4 x 10.2 x 3.5 inches
Manufacturer Part Number 48021
Folding No

Additional Information

ASIN B005EKY1LU
Customer Reviews
4.6 out of 5 stars 17 customer reviews

4.6 out of 5 stars
Best Sellers Rank #90,620 in Automotive (See top 100)
#235 in Automotive > Tools & Equipment > Jump Starters, Battery Chargers & Portable Power > Battery Chargers
#911 in Automotive > Replacement Parts > Batteries & Accessories
Shipping Weight 3.1 pounds (View shipping rates and policies)
Date First Available July 27, 2011

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Product Description

The BatteryMINDer Maintainer/Desulfator keeps new batteries fresh, reconditions older ones, and maintains them for months at a time. For all lead-acid batteries, including Sealed, AGM, Gel and flooded (filler caps) powering electric golf cars, people movers, fork and scissor lifts, floor scrubbers and other battery electric industrial equipment. Not for aviation batteries. Overcharge Protection: Yes, Works With: Sealed and filler-cap lead-acid batteries, including Optima, Odyssey, Interstate, Exide AGM types, Power Cord (ft.): 6, Amps: 2A, Charger Type: Automatic, Volts: 48, 120, Polarity Reversal Protection: 8, Case Material: Polycarbonate, Settings (qty.): 3, Clamp Material: Nickel-plated steel, Amp Charge Rate: 2A, Dimensions L x W x H (in.): 5 1/2 x 5 1/2 x 2 1/4, Cable Gauge: 18 AWG

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
Shipping was fast. Got this thing all hooked up to my golf cart. Seems to be working fine. technical support with the battery minder guys is supreme. I have called 3 times and talked to someone every time. Very knowledgeable and courteous people. I will update on the performance of the battery minder once it's had a chance to work it's magic on my 4 year old 8 volt batteries.
update 2-16-14.... for my 4 yr old 8 volt T-890 trojan batteries. it took a lil under 2 weeks to get these batteries to float. starting out on a full charge from the bulk charger and a resting period, 4 batteries volt level around 8.1 to 8.3, the two leed batteries were 7.0 and 7.2. after coming to float mode, 4 batteries at 9. 2 to 9.4 and the other two at 8 .7. u can plainly see the difference that the battery minder has made in the plates in under two weeks.
Update: 2-21-14 after a week of being on float all the batteries have leveled out.
the voltage on all batteries @ 8.8 to 8.9. in my opion this battery minder has already paid for its self.
my intent is to get 2 to 3 more years out of these batteries and i think i will.
last update 3-24-14
When I started this process my battery pack as a whole was at around 47 volts. The fact that my batteries were in decline was evident. My run time had fell off dramatically. I was under the impression as is I would imagine a lot of the golf cart owners are, that my bulk charger was doing the job it was supposed to be doing, keeping my batteries fully charged. IT WASN'T. I must admit this was somewhat of a surprise and there was a bit of a learning curve but I will tell you that since I have had this batteryminder hooked up to my golf cart I have seen a noticeable improvement in my 4 yr old Trojan t-890's. My battery pack as a whole is floating at 53.
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Verified Purchase
I have a 48 volt lift that comes with the charger built in, when I use the original charger for it and use it as per the instructions on it, the brand new batteries started to get that over charged battery smell and they weren't charged yet. I put this in with it and now I use the original for a few hours and then switch over to this one and by the mourning the batteries are charged and desulfating. this should make my batteries last a lot longer just with the charging never mind how much longer they should last with the desulfation too, well worth it when the batteries cost $2000
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Verified Purchase
I use this for our Club Car and have been very pleased with it. The battery life of the cart has improved noticeably and being in law enforcement and used battery conditioners for over 10 years, I see the life of batteries and their charge capacity decay significantly slower using them.
The batteries I used these on were about 2 years old and I saw the charge depleting within about 2 hours. After cycling twice through the reconditioning I was getting closer to 3 1/2 hours. Recommended
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Verified Purchase
I bought this for my gold carts when in storage, but actually use it when they are not going to be used for a few days. This appears to have made a significant difference in the charge my NEW batteries take and hold. It has increased the battery charge life of each cart by at LEAST 25%.

I bought a 12V for each of my vehicles and the RV.

GO BATTERY MINDer!!!!
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Verified Purchase
Performing as expected. With one minor thing. It is telling me my polarity was wrong. Checked my connections and they were correct so don't know if this thing was wired wrong at the factory. Swapped the connections and it is doing what it is supposed to. Like the added permanent mount for the charging harness, fits right into existing hole in my Yamaha golf cart. Batteries seem to be performing well but just recently replaced them so only time will tell if this charger helps extend the life (got over 4 years on the last set).
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Verified Purchase
I love this product. I have been using it for about three months. I use my golf cart daily and have not used my golf cart charger since I purchased the BatteryMINDer. I plug the BatteryMINDer in every time I park and it supplies a perfect 1.5 Amp trickle charge while keeping the plates in my batteries desulfied. The batteries are much stronger and the charge last much longer than it did before using the BatteryMINDer. Before purchasing the BatteryMINDer the charge was lasting about an hour. I was faced with having to buy four new expensive batteries. I decided to invest in the BatteryMINDer instead. It was an expensive gamble but man am I glad I did. The batteries are now performing like new. The BatteryMINDer came with a female plug built into a small one inch mounting plate that could easily be installed by drilling a small hole through the fiberglass and permanently wired into the first and last battery. This allowed me to easily hook up and disconnect the charger. The trickle charge is low enough that it doesn't heat up the batteries therfore the water in the batteries does not boil out and the life of the batteries is not diminished. Charging is normally what reduces the life of a battery but with the BatteryMINDer instead of reducing the life it is cleaning and maintaining the batteries. I love the BatteryMINDer, what a great investment.
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