some light on odd electric issue

[GMAs]

As to the Sulfating of the ships batt from setting... to answer the other question I got... you can go to the internet and look up why they do it better than we can re-write the issue here.

We did a extensive study on the problem and what can be done to keep the ships battery from having it happen.
We tested several pieces of manufactured equipment to find out if they really did what they claimed. We got down to just 3 manufactures. One even improved their product further after he reviewed our testing data. The currently are the No. 1 aircraft battery charger/desulfator and highly recommended to the members of the Skymaster groups.

This charger/de-sulfiator can be left on the ships battery indefinately. It uses a microprocessor to sense the battery and keep it peaked.

Here is the best of the best that we tested... and their new aircraft specific appliance

BatteryMINDer
AviationSpecific Battery Charger

12-24 Volt 2,4,8 Amp

The BatteryMINDer is a 3-mode charger /maintainer /conditioner that extends performance and life of all types of 12 Volt or 24 Volt lead acid batteries. These include maintenance-free, marine, sealed gel, AGM, dry and valve-regulated batteries.


The voltage settings and charge rates (both user selectable) have been chosen, after conferring with leading aviation battery makers in the U.S. By providing each of these BatteryMINDer units with an “At-the-Battery” temperature compensating sensor, batteries can be safely charged and maintained for extended periods in temperature extremes from 32°F to 125°F. Without this type temperature sensing, batteries will be under-charged in colder temperatures (<70°F to 32°F) and over-charged in high temperatures (>80°F to 125°F).

Both models include full-time pulsed de-sulfation circuitry designed to safely dissolve sulfation build-up on the battery’s storage plates, restoring lost cranking power and extending life. Our de-sulfation method is fully automatic, does not use potentially damaging high voltage and is exclusively protected by two U.S. patents.

What is Sulfation (sul-fay-shun) and
How Does It Affect Batteries?

When batteries are improperly maintained (over-under charged or left uncharged for extended periods) small crystals of sulfuric acid from the battery’s electrolyte (liquid or paste) form on the battery’s charge plates. They act as a resistor (barrier) preventing the battery from ever again accepting a full charge, no matter how long a charging source may be connected. Once this occurs, the cranking power of the battery is severely reduced, as well as its life. Aviation batteries are affected the most because they have been designed for maximum performance in the smallest-lightest case possible.

VDC Electronics has developed simple, but highly effective circuitry, able to safely dissolve sulfation, restoring much, if not all, of the lost power, providing the battery’s cells are not shorted or structurally damaged. This U.S. Patented approach is believed to be the most effective method for eliminating even the oldest hardened sulfate. By generating safe, wide-band, random frequency electronic pulses, we are able to cover the full range of sulfate crystals sizes, in the shortest possible time. Depending on the amount of sulfate and its age, complete de-sulfation can occur within several days to several weeks. De-sulfation takes place automatically, while the battery is being bulk or maintenance level charged.
FEATURES

• For all size and type 12-Volt and 24-Volt aviation batteries (or two 12-V in series = 24-V) including sealed AGM-maintenance-free and filler cap maintenance type
• Guaranteed never to over-charge, regardless of time or temperature (32°F – 125°F) with correct battery type setting and ABS-248 or 124 temperature sensors correctly installed on either battery terminal connection
• Push-button selector for charge rate and battery types = ensures 100% compliance with major aviation battery makers’ specifications
• Auto-restart after power failure
• Safely charges up to 200% faster than conventional chargers
• Maintains from 1 - 6 batteries at a time (parallel connected)
• Automatically dissolves power-robbing sulfation using safe low voltage pulse technology (U.S. Patented)
• Microprocessor controlled pulsed output ensures 100% full charge
• Temperature compensation extends battery life by more than 200 Cycles (full charge-discharge cycles) with ABS temperature sensor1
• High efficiency design = low monthly operating cost of less than 50¢2
• Weather-proof enclosure
• Optional 12 or 24 Volt PowerPlug (fused) allows charger to be easily connected to battery via input 12 v or 24-v power receptacle
• 1 year 100% money-back guarantee + five (5) year “no hassle” warranty
Size/Weight: 5-1/2” L x 5-1/2” W x 2 1/4” H / 3.0 lbs.

by the way... mention that your a 337 Skymaster Club person and you can get a manufactures direct discount for one. A lot of our club owners now own them and have had great results while the bird sits throught he cold long winter.

Only warning we suggest is that you not turn on the ships radios or master switch when its in operation. The de-sulfication break down pulse spike can exceed 30 volt and could damage sensitive electronics if allowed to be placed across the terminals.

Hope this helps

Fly safe...GMAs