BatteryMINDer244CEC2-AA-S5: 24 Volt-4 Amp Concorde Aviation Battery Charger, Battery Maintainer, and Battery Desulfator

I have Concorde battery in my Bonanza that was getting a bit tired and seemed like it was losing some energy density with age. New batteries were way backordered so I decided to give this unit a try to see if the claims of desulfating would worked.I left the battery tender on the plane for about 3 weeks and it has made a big difference. Cranking the big continental is no problem and the battery shows no sign of struggling with the starter as it had before I used the Battery Minder.I'm sold!

I had a batteryminder for my Concorde since 2010 and it became faulty a few weeks ago. I found this one with a charger and it works great!

I bought a Cessna T192T ordering charger to keep battery maintained ready to fly. Battery (located in tail fuselage of plane) was found to be a Gill battery during annual / not pre-buy inspection; Concorde battery’s have different voltages, thus charger could not be used with Gill battery. I called manufacturer in New York, I was informed unit could be returned, for a nominal fee they would reprogram to work with Gill battery. I sent unit to them (brand new, power cord still factory coiled and tie wrapped). I rec’d a phone call a few days later with questions about return, why, any problems, etc. I explained my stupidity in not knowing battery when unit ordered; gave my CC, a few days later I rec’d a new correct charger for my battery. Great service from manufacturer, very supportive and very fair in working with me as my time had lapsed for returning unit from time I purchased airplane to annual date. Cannot sing praises enough for how unit works nor how I was treated with adjustment to secure correct charger for my Cessna T182T from the producer / manufacturer. Best charger and service in market today.

This is my third BatteryMINDer for Concorde batteries, I let the last ones go when I sold the aircraft. I finally got a new one for my new plane, these chargers are an absolute must for getting every bit of life out of your expensive airplane batteries. My new plane has dual batteries, and I found that BatteryMINDer even has a splitter to keep both batteries charged and desulfated. I was intending on having to buy two chargers, one for each battery, but this charger and the splitter work perfectly. Robinson Helicopters pre-wires the R66 Turbine for this charger, of course they use a proprietary plug and charge $200 more for the charger. This was how I discovered the brand, there are some cheaper but none maintain and desulfate the way this one does. It's worth the extra money, especially when you consider your batteries cost thousands of dollars.

I got the 24 volt Battery Minder to keep the Concorde battery in my airplane charged between flights. I just works - no problems so far. I keep the battery plugged in when the airplane is in the hangar. So far no signs of over or under charging. I have had it around 3 months now. We will see if it lasts.