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  • BatteryMINDer Model 12117: 12 Volt 1.33 Amp (12V 1.33A) Charger/Maintainer/Desulfator
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BatteryMINDer Model 12117: 12 Volt 1.33 Amp (12V 1.33A) Charger/Maintainer/Desulfator

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  • Full-time battery monitoring automatically tests battery every microsecond, supplying only the current needed to maintain battery at full charge
  • Maintain up to four 12 Volt standard, starting batteries (of similar type - in parallel). Amperage is divided evenly among connected batteries. (NOT recommended for deep cycle batteries)
  • Does not overcharge, regardless of time connected
  • High-frequency pulses safely remove sulphate from battery's plates that prevent the batteries from holding a full charge
  • Adding water references Wet typed batteries. If the water level isn't sufficiently maintained, charging the battery runs the risk of overheating and cooking the battery. The charger applies current to the battery and this can cause the water to boil and evaporate.
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Product Information

Technical Details
BrandBatteryMINDer
Item Weight2 pounds
Product Dimensions8.6 x 6.7 x 3.3 inches
Item model number12117
Manufacturer Part Number12117
  
Additional Information
ASINB000P23HZS
Best Sellers Rank #129,537 in Automotive (See top 100)
Shipping Weight2 pounds
Date First AvailableJune 21, 2004
  
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Product Description

12V batteries need a little TLC from time to time and if they are neglected or used infrequently they can die. Avoid that unpleasant fate by getting a BatteryMINDer. This cool tool maintains all sizes and types of 12V batteries, including sealed, marine and deep cycle, up to 4 at a time. It uses patented high-frequency circuitry to dissolve harmful sulfates, extending battery life and performance. It never overcharges and is weatherproof to withstand rain and marine environments. UL listed.

Customer Reviews

The original battery is now 8 years old and still going strong.
Goat Boy
Great item, If you have a car or truck that sits in the garage for extened periods of time, this is the unit for your battery.
Gary W. Bailey
The standard automotive battery charger can be very crude in it's function and how it charges a battery.
BrianD

Most Helpful Customer Reviews

105 of 107 people found the following review helpful By remote camper on December 11, 2009
...if you own deep cycle batteries. I bought one of these in 2001 as an experiment to desulphate eight 6 volt 225 amp hour deep cycle batteries.

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***EDIT May 9, 2013***
Contacted VDC Electronics yesterday to obtain information on the suitability of the 12117 for use with deep cycle batteries and learned that the model # for which the results in this review were obtained were actually for a Model# 12112, the predecessor to the 12117. The 12117 wasn't introduced until 2006. I had misread the model # on my unit when I wrote the review in 2009. I apologize for the error. That said, the 12112 and the 12117 are virtually the same technology with the 12117 having increase in output of about 30%. That would seem to speak fairly favorably of the results I obtained with the lesser powered unit.

VDC Electronics has confirmed that the 12117 "can be used with deep cycle batteries as a maintainer/desulfator", contrary to what the Amazon specifications might say. However, the 12117 is NOT certified for use with AVIATION batteries. The remainder of the original review continues below.
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The RV park where we were staying used these deep cycle batteries in their golf carts. They were going toss them in the dumpster because they were having to recharge them too often. These batteries were in bad shape as evidenced by the constant 6 amps being drawn after being hooked up to their "super" charger for many hours. Essentially, these batteries were so sulphated that they would not accept any more charge.
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36 of 37 people found the following review helpful By PWP on May 28, 2009
Verified Purchase
Excellent Product; does what it's advertised to do. Comes with lugs/rings and alligator(battery) clamps and a long cord. Works like a cell phone charger, just connect it & plug it in. WILL NOT WORK ON A COMPLETELY DEAD BATTERY!! (If the battery is dead, use your bulk charger to boost it for a couple of hours and then connect the maintainer.) Once the maintainer reaches full charge, it goes into conditioner mode (green flashing light)which is desulphating the battery, exentending its life. Worth the $$$. [...]
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30 of 31 people found the following review helpful By Jason Golod on July 21, 2009
Verified Purchase
This is something that any guy with a garage and a car should have...especially if you have more than one car. I was more than impressed with this little desulphator/charger's ability to revive a battery that would have otherwise been junked. I have an e34M5 that is notorious for slowly killing batteries. After the battery was dead for over a month, I charged with my "big" battery charger as this cannot help batteries that are on the brink of death without being charged with a larger charger, then I put this on it for two weeks and it was nothing short of a miracle.

If you have a car that sits for long periods, you should get one of these little fellas.
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13 of 13 people found the following review helpful By John Kirsten on August 31, 2011
Verified Purchase
I have one of each of these battery maintainers. Both of these can be connected to a battery indefinitely without boiling it dry. Both come with a set of battery clips and a set of fuse-protected ring terminals for permanent installation. Both have reverse polarity protection(hook them up to the wrong terminals, and nothing happens). The Ctek US 800 has a power cord; the BatteryMINDer 12117 plugs directly into a socket. The BatteryMINDer has a button that allows you to select maintenance mode; the Ctek has no buttons.
Some reviewers say the Ctek gets very hot; it does. The BatteryMINDer gets equally hot, and is always hot when plugged in, whether it is in the charging phase or maintenance phase. When the Ctek is in maintenance phase, it is only warm.
The BatteryMINDer 12117 manual states that it desulphates in all modes. One reviewer stated the Ctek also continually desulphates, but the Ctek manual mentions desulphation only in the first stage of battery charging. It could be continuous, but an oscilloscope would be necessary to test that, and I do not have one.
The BatteryMINDer 12117 charges a battery to about 14.1 volts; the Ctek, 14.4. After the initial charge, both go into maintenance mode. The BatteryMINDer allows the battery to drop to 13.4 volts and then keeps it there exactly. The Ctek allows the voltage to drop to about 12.95 volts, gives it a pulse up to 13.05 volts, lets it drop to 12.95 volts, gives it a pulse up to 13.05 volts, etc. If the battery being charged by the BatteryMINDer does not get up to 14.1 volts, it will not switch into maintenance mode. If it does not switch within three days, the instructions state you should manually select that with the button.
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21 of 23 people found the following review helpful By Michael J. Bitetti Jr. on April 10, 2010
Verified Purchase
I purchased the Battery Minder Plus to restore my boat battery. I am an electronics engineer and had researched what happens to a lead acid battery that causes it to loose its capacity. Though there are other causes, the most common one is sulphation, a coating that forms on the lead plates that is non-conductive reducing their ability to conduct electricity. My battery was so bad that even after many hours of charging on my charger's highest setting, it couldn't hold enough charge to operate the radio, much less engage the starter. I ordered the Battery Minder Plus (at roughly half the price of a new battery). It arrived this past Monday evening. Five days ago. Before I could begin charging, I had to force the Battery Minder into "Maintenance Mode" to start de-sulphating it. Basically zapping the battery with pulses of power that forces the sulphate to disolve. Eventually the battery began to take and hold a charge. This morning I was able to easily start the boat with only the battery. I'm very impressed. Very happy with the product. The manual that comes with it is a bit disorganized and quite redundant but most of the information you need is in there.
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