BatteryMINDer®
Aviation-Specific
Maintenance
Battery Charger De-Sulfators
What is Sulfation (sul-fay-shun) and
How Does It Affect Batteries?
When batteries are improperly maintained (overunder 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 size 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 crystal 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.
1
2
3
Magnified views of battery plates
1. New battery
2. Sulfated plates - (note sulfuric acid crystals)
3. After de-sulfation (using high frequency pulses)
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Sold and Serviced by:
Now with NEW Plug ‘n Run feature
Chance Aviation Service, Inc.
International Distributors of Aircraft Parts
4444 Decatur Blvd, Ste 1000
Indianapolis, IN USA 46241
Phone 888-823-0337
Fax 317-486-8805
http://www.chanceaviation.com/
Note: All Aviation Specific BatteryMINDer models (12-V
or 24-V) provide "full-time" de-sulfation. We guarantee
to safely eliminate all sulfate from any non-commercial
aviation battery meeting the criteria clearly stated in
our Instruction Manuals.
VDC Electronics, Inc.
www.BatteryMINDers.com
techsupport@vdcelectronics.com
800-379-5579 x251 ET (M-F)
12/24-AA-S2-S3 031110 Rev. D
VDC Electronics now has available Aviation Specific
versions of its 12-V and 24-Volt Maintenance Charger De-Sulfator - Conditioners.
Our 12-V models 12248-AA-S2, S3 and 24-V models
24041-AA-S2, S3 are safe to use on all type and size
Aviation Specific batteries, including both sealed and wetcell constructions, contingent upon battery brand. The
voltage settings and charge rates have been chosen, after
conferring with leading aviation battery makers in the
U.S. The 12248-AA-S3 is a specific charger-maintainer
designed exclusively for Odyssey brand sealed lead-acid
FAA-PMA Certified SBS-J16 and all other Odyssey 600
series sealed batteries. This model is officially approved
by EnerSys, the manufacturer of the Odyssey - Hawker
branded batteries. The 24041-AA-S3 is a specific
charger-maintainer designed exclusively for Gill-Teledyne
24-V LT Series batteries. This model is officially approved
by Gill and MUST ONLY be used with their LT Series and
none other.
By providing each of these BatteryMINDer units with an "Atthe-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).
All 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.
BatteryMINDer Aviation-Specific Models
 12248-AA-S2: 12 Volt Plug 'n Run
 12248-AA-S3: 12 Volt Plug 'n Run,
exclusively for Odyssey
 24041-AA-S2: 24 Volt Plug 'n Run
 24041-AA-S3: 24 Volt Plug 'n Run,
exclusively for Gill-Teledyne 24-V LT Series
Features of Models
12248-AA-S2 & 24041-AA-S2
(12-volt)
(24-volt)
10
3
(See batteryminders.com for AA-S3 features)
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Charger
/ /
VDC VDC
Electronics,
Inc. Inc.
Charger/ /Maintainer
Maintainer
Electronics,
800-379-5579
(ET) (ET)
Full
Time
De-Sulfator
Conditioner
800-379-5579
Full Time Desulfator - Conditioner
www.vdcelectronics.com
www.batteryminders.com
Model
@ 8@Amp
Model12248-AA-S1
12248-AA-S212-Volt
12-Volt
8 AmpU.S.U.S.
Patents:
5783929
& 6078166
Patented
& Patent
Pending
1
AVIATION-CALIBRATED
AVIATION-CALIBRATED
Green
= Power
ON ON
Green
= Power
ERROR:
ERROR:
RedRed
= Polarity
Reversed
= Polarity
Reversed
/ Battery
= less
than than
3-Volts
/ Battery
= less
3-Volts
* * RedRed
(Blinking)
= Battery
not fully
(Blinking)
= Battery
not charged
fully charged charger
in float-maintenance
modemode
charger
in float-maintenance
* *
AIRCRAFT
ONLY
AIRCRAFTBATTERY
BATTERY
ONLY
88AA
AVIATION
AVIATION
2
Battery
Condition
Indication
Battery
Condition
Indication
NOT for use
with GILL
LT
MAINTENANCE
MODE ONLY
Series
or
(HOLD 3 SEC.)
ODYSSEY
PRESS
PRESS
Aircraft
Until Batteries
Until
8A Lit
Aviation Lit
Power
On &On
Battery
Connected
Power
& Battery
Connected
Before
StartStart
Charge:
Before
Charge:
Green
= OK= -OK
Accepted
Green
- Accepted
Yellow
= Weak
/ Sulfated
/ Deep
Discharge
Yellow
= Weak
/ Sulfated
/ Deep
Discharge
* *
AfterAfter
Charge:
Charge:
Green
= Good
Green
= Good
Yellow
= Sulfated
/ Weak
Yellow
= Sulfated
/ Weak
* *
PRESS
PRESS
Start / Stop
Reset
Restart
/ Stop
9
Charge
- Float
Charge
- Float
Green
(solid)
= Charging
Green
(solid)
= Charging
Green
(blinking)
= Float
(maintenance)
Green
(blinking)
= Float
(maintenance)
Instruction
Manual
*See
Instruction
Manual
*See
5 sec.
for reset
full reset
HoldHold
for 5forsec.
for full
8
7
6
4
5
1)Battery clip cordset with qwik-connect plug (fused)
2)Ring terminal cordset with qwik-connect plug (fused)
3)Mounting tabs
4)Input power cordset
5)Output cord with qwik-connect plug
6)Temperature sensor input connector
PLUG 'N RUN 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 ABS-248 temperature
sensor correctly installed
 Auto-selection for charge rate and battery types ensures
100% compliance with major aviation battery makers'
specifications
 Auto-restart after a 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
7)
8)
9)
10)
STOP/RESTART selection button
LED indicators for power, connection, fault,
battery condition, charge status
12/24 Volt Power Plug (Optional)
Temperature sensor with cord and ring terminal
(supplied)
 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 enclosures
 Optional 12 or 24 Volt PowerPlug (fused) allows
charger to be easily connected to battery via input 12V or 24-V power receptacles
 1 year 100% money-back guarantee + five (5) year "no
hassle" warranty3
Size/Weight: 5-1/2" L x 5-1/2" W x 2 1/4" H / 3.0
lbs.
When compared to chargers without an "at-the-battery"
sensor
2
Based on running 24-7 at an electricity cost of 18 cents /
Kilowatt Hr.
3
We guarantee to significantly increase both your battery's
life and performance or we will refund 100% of the price you
paid, including tax, shipping and handling
1
BatteryMINDer®
What is Sulfation (sul-fay-shun) and
How Does It Affect Batteries?
When batteries are improperly maintained (overunder 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 size possible.
28252-AA
1
2
3
Magnified views (588X) of battery plates
1. New battery
2. Sulfated plates - (note sulfuric acid crystals)
3. After de-sulfation (using high frequency
pulses)
28-Volt @ 25 Amp
Avionic Power Supply /
Charger - Maintainer Desulfator
Sold and Serviced by:
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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 crystal 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.
OUR GUARANTEE: We guarantee to safely
eliminate all sulfate from any non-commercial
aviation battery meeting the criteria clearly stated
in our Instruction Manuals.
RE
fro
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VDC Electronics, Inc., USA
www.BatteryMINDers.com
techsupport@vdcelectronics.com
800-379-5579 x201 ET (M-F)
Outside of U.S. & Canada:
+1 631-445-1064 ET (M-F)
28252-AA-Series 121510 Rev. G
This newest BatteryMINDer allows the "full on" use
of glass panel avionics continuously, without ever
draining the batteries. Its high efficiency design
supplies full voltage (28-V) even when connect to
a 200' #16 gauge extension cord. In the battery
charge mode it is capable of recharging a "flat",
fully discharged, 30 AH battery in as little as one
(1) hour**.
BatteryMINDer® Model 28252-AA
1
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p Sw Stan
tion
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Di
3
4
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r
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e
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Because it truly charges aviation specific batteries
to 100% capacity, they have the very best chance
of passing their annual airworthiness test. With
the optional high frequency pulse type desulfation
feature, marginal batteries can be safely improved,
sufficient to ensure their passing as well.
3
4
1.
2.
3.
4.
5.
Its ease of operation (plug 'n run) will be appreciated
by both owners and mechanics. Auto input voltage
selection, detachable input cord set receptacle and
Power Factor Correction (PFC) efficiency allows
unit to be used worldwide, automatically adapting
to any country's voltage system.
Lightweight (<8 lbs.) Heavy Duty Construction
Large LCD Screen Display
Cord Storage For Both Input & Output Cords
14’ Output Cord with Anderson-type 50 Amp Connector
Easy Plug ‘N Run Operation
Battery Connectors
2
1
Lightweight (< 8 lbs.), small footprint, large backlit
LCD display, cord storage arms and multiple output
plug attachment options, make this the easiest to
use device of its kind.
3
We think it is noteworthy to point out the 28252AA was designed in very close concert with the
world's leading aircraft battery manufacturer, here
in the U.S.A.
Lastly it is backed by a 5-Year "no hassle" 100%
parts and labor warranty.
s
ng
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5
1. ABS-2825: Temperature/Voltage Sensor
2.
3.
4.
5.
(At-the-Battery Sensor) (included)
A2ELCON: Anderson SB-50 Gray to ELCON (optional)
A2RT: 11/32” Ring Terminals (optional)
ELCTC: ELCON Type Connector (optional)
A2GPU-1: Anderson SB-50 to Cessna style GPU Plug
(optional)
PLUG 'N RUN FEATURES:
 28-Volt Power Supply - eliminates battery drain when
operating all glass panel avionics.
 Supplies full power to all electronics to ensure correct
outputs, even when connected to a 200' #16 gauge
extension cord.
 Ensures fast, yet safe, full charge to aviation specific
batteries*.
 Capable of charging a fully discharged 30 AH battery in
one (1) hour**.
 Plug 'n Run - no need to set charging parameters. Auto
Restart if power fails.
 "At-the Battery" temperature sensor - ensures full charge
regardless of temperature (0 - 125F). Allows unit to be
left connected to batteries for extended use or maintenance
storage, without overcharge.
 High Frequency desulfation mode - dissolves sulfate
without deteriorating battery plates.
 Uses high frequency, not high voltage, current pulses***.
 Configured for Standard Aviation Batteries with additional
precision settings for Concorde, Gill 7000 Series, Odyssey
and Hawker Batteries.
 Large LCD Screen (white backlit) displays all important
status information.
 ECO Mode reduces electrical consumption when in
maintenance - float charge mode.
 Worldwide capability - with auto input of 108-230 Vac
50/60 Hz, w/Power Factor Correction (PFC). Detachable
input cord receptacle allows choice of country specific
cord-plug sets.
 Voltage balancing for two (2) 12-V series-connected
batteries, preventing under-overcharge of either.
 Modified cell equalization Stage 4 (Pat. Pending)
conditions battery prior to capacity testing.
 Recovers deeply discharged batteries and many of those
failing FAA 80% capacity test.
 Multiple safety protection against output short circuit,
reverse polarity, thermal runaway.
 Extremely lightweight; < 8 lbs.
 Designed to UL, CE, FCC, EMC safety agency standards.
 Five (5) year 100% parts and labor "no hassle" warranty.
* FAA-PMA Certified Lead-Acid
** To 85% of rated capacity
*** U.S. Patented.