BatteryMINDer Model 128CEC1-AA 5-STAGE* 12-VOLT 2/4/8 AMP USER-SELECTABLE CHARGER / MAINTAINER / DESULFATOR
These charger/maintainer/desulfators are designed for all size and type 12-Volt Concorde® Aviation Batteries. If you want the longest possible Life and Performance from your Batteries there is no other product better at doing just this and BatteryMINDer Guarantees it! BatteryMINDers are amongst the highest rated brand of products (4-Star and 5-Star Reviews) in the industry and are backed by our 5-Year “No-Hassle” 100% Warranty. *based on continually maintaining one 125Ah battery.
* Depends on model and connection to batteries in parallel using BatteryMINDer accessory 210AY or customer-provided wiring assembly.
** International Electrotechnical Commission, an international standards organization.
By Bill Woods, VP of VDC Electronics
If you have been neglecting your battery, not flying as much or just tired of replacing it every 2-3 years, listen up. A good quality aviation specific battery (12-V or 24-V) should give you 5+ years of safe, near full capacity performance, if it is properly maintained. If you think occasionally charging your battery with an automotive or "trickle" charger is all you need to do to keep it healthy, think again. Yes, even a sealed dry "maintenance free" aviation battery needs to be kept at full charge, at all times, to avoid something called "sulfate". What is sulfate? It is the #1 cause of early battery failures, far greater than even vibration, high-low temperatures or contamination. It’s caused by failing to keep a battery fully charged, such as when your flight times are short, i.e. typically less than three hours.
What’s the Difference?
An aviation-specific battery is different than auto or marine types. To maximize the cranking amps and reserve capacity, while trying to minimize weight and size, aviation battery manufacturers use a higher specific gravity (SG) electrolyte in their aviation batteries. This "hotter mix" (more H2SO4 [sulfuric acid], less H2O [water]) means it will be overcharged whenever a non-aviation charger is used. Why? Automotive chargers are set at a higher output voltage (typically 13.8 -14.6 volts) than aviation batteries can handle. In addition, they are typically not "at-the-battery" temperature compensated which means the problem becomes even worse as the temperature rises. This results in overcharge, especially in temperatures above 25°C (77°F). In a maintenance type battery (filler caps), the need to add water beyond small amounts every 3-6 months, indicates the battery is being overcharged. Sealed "dry" maintenance-free batteries also lose electrolyte through their venting valve in the form of a vapor-gas. Unlike maintenance types, there is no way to replace it and the battery is on its way to dying, long before it should. Undercharging in cold weather also results when using any type charger that does not compensate for the cold by increasing its output voltage when temperatures drop below 60°F (15.5°C).
What is the Result?
When sulfated, a battery can never be fully charged no matter how long it is left connected to a charger.
Keep the battery fully charged at all times you are not flying the plane. If the battery is already sulfated, an aviation specific charger with a de-sulfating mode that uses high frequency (not high voltage) will dissolve it, returning the battery to a healthier condition. A full charge, from the right charger, can then be accomplished. How do you know when your battery is sulfated? Simply put a digital voltmeter across the terminals, after the battery has been charged and left "rested’ for at least 12 hours. If the voltage is less than 12.9 (25.8 for a 24-V) the battery is sulfated. It can be reversed (dissolved) with the right charger-desulfator, providing the readings are not less than 12.5 volts (or 25 volts for a 24-V battery).
Only "at-the battery" temperature sensing charger-maintainers, set to the voltage levels recommended by the aviation battery manufacturer, should be used other than for "jump starts." If other types are used, battery life will be shortened by years with lower cranking amps and reserve capacity. The money you may save, by using a non aviation specific charger-maintainer, will be more than offset by more frequent battery replacements and a less safe battery, due to diminished capacity.
If you are not getting 5 or more years of 85% or greater capacity from your battery, then you are already paying for the right aviation specific charger-maintainer you could be using to avoid sulfate and extending life and performance. Given the price of batteries vs. the cost of a good aviation specific charger-maintainer-desulfator, is easy to justify.
About VDC Electronics:
VDC Electronics, Inc. (http://www.batteryminders.com) founded in 1993, is a privately held company headquartered in Huntington, NY, USA. We specialize in battery management products designed to improve and extend the life of any/all type lead-acid based batteries through the use of our proprietary design techniques and U.S. patented desulfation circuitry.
We are the leading manufacturer of pulse type battery charger-maintainer-conditioners in the U.S. We are a 100% owned American company founded by personnel, each with over forty years of battery charging design, development and manufacturing experience.
Aircraft Spruce didnt make the charger, so my comments relate to order, which was quick and easy, and delivery, which was faster than expected. Overall I was pleased (once again) to do business with Aircraft Spruce.
Batteryminder arrived on time. It was easy to setup and start charging my battery.
Charger arrived on time and it was very simple to setup and connect to AC battery. Very pleased
Battery life is essential and from all my research this is the best tender/charger available. Easy to use, especially when paired with a battery terminal ring kit and temp sensor.
So far so good? Time will tell.
It does exactly what its supposed to do.
It works perfectly.
Got the charger to bring back an almost completely dead Concord Battery. Worked great! Took about a 24 hours to get it fully charged and now it is doing maintenance. Will order the connector adapter since it is difficult to get to the battery.
Recommended to me by my battery manufacturer while diagnosing battery issues. Learned a lot from him and realized I was doing everything wrong for my battery. Itâ€™s solved my low battery issues. Units are specific to battery types. Be careful ordering on line - itâ€™s easy to order the wrong one. I recommend calling and tell the customer service rep what type battery you have when ordering.
Just what I needed Works great. Thanksðź‘Ť
BatterMinder has worked closely with Concorde to design their S5 model and they recommend the S5 as the best unit for Concorde batteries. That does not mean the S2 could not be used. If you have both Gill and Concorde sealed batteries, the S2 can be used for both. I could not find any information for this being used on automotive batteries.
The BatteryMinder is designed to be connected directly to the battery. The Plug and Jump is just for jump starting the aircraft, not battery charging. You can purchase the Interface Cable kit, p/n 11-10835, to hard wire to the aircraft and then you can leave the battery in the aircraft when charging it with the BatteryMinder.
That would be the correct charger for all 12 volt Concorde batteries.
It is not recommended by either the manufacturer of this unit, or by Gill, to utilize this charger with a Gill battery.
The S2 is designed for wet and sealed Gill batteries and the S5 is designed for sealed Concorde. I believe you could use the S2 for both but it is not what Concorde recommends, you would be using it at your own risk.