BatteryMINDer 483CEC1 User manual

Rev. A-051216 P/N 483CEC1-MNL
READ AND SAVE THESE
INSTRUCTIONS
VDC Electronics, Inc. •155 W. Carver St., Ste. 2 • Huntington, NY 11743
www.BatteryMINDers.com • [email protected]
BatteryMINDer®COMMERCIAL
48-Volt Model 483CEC1
Battery Maintainer-Charger-Desulfator
INSTRUCTION MANUAL*
Includes:
• ATS Temperature Sensor (installed)
• Ring Terminals with 15A Fuse (Model RTA 2415)
• EZC-01 EZ Connector + Mounting Screws
VDC 483CEC1 LABEL---P/N 701-100476-01-R

BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 2 P/N 483CEC1-MNL
Glossary of Terms
• Maintain a battery
BatteryMINDer ensures batteries are truly fully charged and will likely
continue improving the condition of the battery set to the fullest extent
possible.
• Rested
A battery set that has been as fully charged as possible and left
disconnected from maintenance-charger or any type load overnight.
• Specific Gravity
One of the key parameters of battery operation is the specific gravity of the
electrolyte. Specific gravity is the ratio of the weight of a solution to the
weight of an equal volume of water at a specified temperature. Specific
gravity is used as an indicator of the state of charge of a cell or battery.
• Sulfation
Occurs when the battery sits discharged for a long period of time and large
sulfate crystals build up in the plates. The large sulfate crystals increase
the resistance of the plates and makes the battery harder to recharge and
reduces the amount of power that can be drawn from the battery.
Table Of Contents
Required Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 5
Preparing to Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Maintenance-Charger Location. . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DC Connection Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Qualifying Your Battery Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Testing a Filler Cap Lead-Acid Battery . . . . . . . . . . . . . . . . . . . . . . . 6
Specic Gravity – Capacity Table. . . . . . . . . . . . . . . . . . . . . . . . . . 6
Testing With a Hot/Cold Calibrated Hydrometer Tester . . . . . . . . . . . . . . . 7
Testing A Sealed, AGM or Flooded (Wet-Cell) Lead Acid Battery . . . . . . . . . . 7
Use a Digital Voltmeter Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Simplified Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . 8
Detailed Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Unit Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Battery Charge Indicator Table . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Label Closeup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
LED Indication Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Charging Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Indicator Lights Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Battery Type Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Detailed Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . .15
OCV/Battery State of Charge Table . . . . . . . . . . . . . . . . . . . . . . . . .16
EZC-01 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
For Repair or Replacement / Registration. . . . . . . . . . . . . . . . . . . . . .19
Guarantee/Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 3 P/N 483CEC1-MNL
A. WARNING: RISK OF EXPLOSIVE GASES
WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS.
BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL
BATTERY OPERATION. FOR THIS REASON, IT IS OF UTMOST
IMPORTANCE THAT YOU FOLLOW THE INSTRUCTIONS ON
(1) BATTERY MAINTENANCE-CHARGER, (2) BATTERY AND
(3) PRODUCT USING BATTERY EACH TIME YOU USE THE
MAINTENANCE-CHARGER.
1. To reduce risk of battery explosion, follow these instructions and those
published by manufacturer of any equipment you intend to use in vicinity
of battery set. Review cautionary marking on these products.
2. To reduce risk of injury, maintenance-charge only lead acid type
rechargeable batteries. Other types of batteries may burst causing
personal injury and damage.
3. Do not expose maintenance-charger to rain or snow.
4. Use of an attachment not recommended or sold by VDC Electronics may
result in a risk of fire, electric shock, or injury.
5. To reduce risk of damage to electric plug and cord, pull by plug rather
than cord when disconnecting maintenance-charger. Make sure cord
is located so that it will not be stepped on, tripped over, or otherwise
subjected to damage or stress.
6. An extension cord should not be used unless absolutely necessary. Use
of improper extension cord could result in a risk of fire and electric shock.
If an extension cord must be used, make sure:
a. That pins on plug of extension cord are the same number, size, and
shape as those of plug on maintenance-charger.
b. Not to operate maintenance-charger with damaged cord or plug –
replace the cord or plug immediately.
c. That extension cord is properly wired and in good electrical condition.
d. That wire size is large enough for AC ampere rating of maintenance-
charger as specified in Recommended Minimum AWG Size Table.
Recommended Minimum AWG size for Extension Cords For Battery
Maintenance-Chargers
AC input rating, amperes AWG size of cord
Equal to or
greater than
But less
than
Length of cord, feet
18 18 18 16
0 2 25 50 100 150
IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS
This manual contains important safety and operating instructions for all
BatteryMINDer battery maintenance-chargers unless otherwise specied.

BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 4 P/N 483CEC1-MNL
e. Do not operate maintenance-charger with damaged cord or plug – replace
the cord or plug immediately.
f. Do not operate maintenance-charger if it has received a sharp blow, been
dropped, or otherwise damaged in any way.
7. Do not disassemble maintenance-charger; call VDC Electronics Tech
Support Dept. 800.379.5579 x6 (ET) for advice when service or repair is
required. Incorrect reassembly may result in a risk of electric shock or
fire.
8. To reduce risk of electric shock, unplug maintenance-charger from outlet
before attempting any maintenance or cleaning.
B. PERSONAL PRECAUTIONS
1. Consider having someone close enough by to come to your aid when you
work near a lead-acid battery.
2. Have plenty of fresh water and soap nearby in case battery acid contacts
skin, clothing, or eyes.
3. Wear complete eye protection and clothing protection. Avoid touching
eyes while working near battery.
4. If battery acid contacts skin or clothing, wash immediately with soap and
water. If acid enters eye, immediately flood eye with running cold water
for at least 10 minutes and get medical attention immediately.
5. NEVER smoke or allow a spark or flame in vicinity of battery.
6. Be extra cautious to reduce risk of dropping a metal tool onto battery. It
might spark or short-circuit battery or other electrical part that may cause
explosion.
7. Remove personal metal items such as rings, bracelets, necklaces, and
watches when working with a lead-acid battery. A lead-acid battery can
produce a short-circuit current high enough to weld a ring or the like to
metal, causing a severe burn.
8. Use maintenance-charger for charging a LEAD-ACID battery sets only. It
is not intended to supply power to a low voltage electrical system. Do not
use battery maintenance-charger for charging dry-cell batteries that are
commonly used with home appliances. These batteries may burst and
cause injury to persons and damage to property.
9. NEVER charge a frozen battery or a battery at a temperature above
123° F.
Always follow battery manufacturer’s strict instructions for proper
care, charging and testing of battery. Questions relating to the
subject should be referred directly to the battery manufacturer to
be certain of current requirements that may have been added to or
changed since publication of their instructions.

BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 5 P/N 483CEC1-MNL
C. PREPARING TO CHARGE
1. Be sure area around battery set is well ventilated while battery set is being
charged.
2. Clean battery set terminals. Be careful to keep corrosion from coming in
contact with eyes.
3. Add distilled water in each cell until battery acid reaches level specified
by battery manufacturer. Do not overfill. For a battery without removable
cell caps, such as valve regulated lead acid batteries, carefully follow
manufacturer’s recharging instructions.
4. Study all battery manufacturer’s specific precautions while charging and
recommended rates of charge.
5. Determine voltage of battery set by referring to vehicle owner’s manual
and make sure it matches output rating of battery set maintenance-
charger.
D. MAINTENANCE-CHARGER LOCATION
1. Locate maintenance-charger as far away from battery set as DC cables
permit.
2. Never place maintenance-charger directly above battery set being
charged; gases from battery will corrode and damage maintenance-
charger.
3. Never allow battery acid to drip on maintenance-charger when reading
electrolyte specific gravity or filling battery.
4. Do not operate maintenance-charger in a closed-in area or restrict
ventilation in any way.
5. Do not set a battery on top of maintenance-charger.
6. Always mount units in vertical position with cord sets exiting downward
to ensure weather tight integrity. Unit must be mounted in this manner
to ensure long term trouble free life including weatherproof integrity.
Mounting in any other manner or using un-mounted (parallel to ground)
except indoors may cause unit to fail due to water intrusion that is unable
to drain correctly.
E. DC CONNECTION PRECAUTIONS
1. Connect to batteries using only the supplied RTA-2415 Ring Terminal
assembly and the supplied EZC-01 Connector ONLY only after removing
AC plug from electric outlet. Never allow the two ring terminals to touch
each other.
2. Connect to battery set using only the supplied RTA-2415 Ring Terminal
Assembly and the supplied EZC-01 connector ONLY.
F. FOLLOW THESE STEPS WHEN BATTERY SET IS INSTALLED
IN VEHICLE. A SPARK NEAR BATTERY MAY CAUSE BATTERY
EXPLOSION.

BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 6 P/N 483CEC1-MNL
QUALIFYING YOUR BATTERY
SET:
Preliminary Requirements
NOTE: The BatteryMINDer has no
electrical output unless it is connected
to a battery set that is not completely
dead. Testing the BatteryMINDer
with a volt or an Amp meter without
the unit being connected across a
good battery set will result in a
false reading. If you experience
any problems, or are not sure of
how to properly use or connect your
BatteryMINDer, please e-mail our
technical support at: [email protected] or call our toll-free
technical support line 800-379-5579 x6 (M - F, ET 9 - 5). Be certain to leave
your phone number with the area code, time zone and the best time
to call. To gain the best result from your new maintenance-charger and to
maximize the life and performance of your batteries we strongly recommend
you qualify (test) your batteries before attempting to either charge-maintain or
desulfate them. Remember, even if you just purchased a “new” battery it may
have been subjected to conditions that have caused “sulfation” such as high
temperature (≥80°F).
NOTE: If your battery set is new and you are certain it was not subject
to conditions that could have caused sulfation (such as high temperature
storage [≥80°F] and/or allowed to self-discharge to 2.06 Volts/cell, [49.4V/
battery set]), even before you purchased it, then you can disregard our
recommendations for qualifying / testing your battery, before using the
BatteryMINDer.
Testing a Filler Cap or Manifold-type Lead Acid Battery
1. Carefully remove all caps from your battery set.
2. Check the water-liquid electrolyte level. If the level is low or has ever
been below top of plates, severe lead plate sulfation has taken place.
Significant recharge/reconditioning time is needed to restore these plates
to a condition where the battery set can be expected to function normally.
3. Refill each cell with distilled water only to the liquid level indicator found in
each cell. Before proceeding further you must be thoroughly familiar
with the safety and operating instructions.
4. Recharge the battery set with the BatteryMINDer to ensure that it is slowly
and completely charged before you determine its condition. Allow battery
set to “rest” (see Glossary of Terms on page 2) overnight for a minimum
of 12 hours before testing with a temperature compensated hydrometer
and/or digital type voltmeter only.
Specic
Gravity
State of
Charge Level
1.270
(4 Balls oating) 100%
1.250
(3 Balls oating) 75%
1.190
(2 Balls oating) 50%
1.150
(1 Balls oating) 25%
1.120
(0 Balls oating) Discharged%

BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 7 P/N 483CEC1-MNL
Testing with a Hot/Cold Calibrated Hydrometer Tester
Read the tester instructions carefully for most accurate readings.
1. When using the tester the first time or after a long period of non-use, fill
the tester with the battery fluid and let it sit for 1/2 hour or longer. This will
soak the balls in order to give you more accurate readings. Failure to do
so will give you false readings indicating a battery that may not be in as
good a condition as you may have thought.
2. After inserting the tester in a cell, gently tap the tester several times
against the inside wall of each cell to dislodge air bubbles that will cause
more balls to float than should. Failure to do so will yield false readings
that indicate a battery that is not fully desulfated or does not qualify for
desulfation.
3. If no balls float in any cell, the cell is shorted. This means your battery is
beyond the point of being properly recharged or reconditioned/desulfated.
Dispose of the battery.
4. If each cell floats three (3) or more balls (or 1250 on gauge-type), your
battery can be desulfated/reconditioned.
5. Always rinse the tester with fresh water after every use. Failure to do so
will cause false readings.
Testing a Sealed, AGM or GEL Lead Acid Battery
These batteries have no filler caps or manifold-type covers. Because you
cannot gain access to the interior of your battery you cannot test it with a
hydrometer.
USE A DIGITAL VOLTMETER ONLY:
1. Recharge the battery set with the BatteryMINDer to ensure it is as
completely charged as possible, before you determine its condition. Allow
battery set to “rest” overnight for a minimum of 12 hours before testing
with a digital voltmeter only. Failure to test a “rested” battery set will
cause false readings. Be certain to read and understand all safety related
instructions (pages 3 - 7) before proceeding further.
2. Measure battery set’s voltage, without any load attached. If the voltage is
less than 2.06 Volts/cell, (49.4V/battery set) (Typically 50% of charge)
the battery set may be too heavily sulfated to be fully recoverable. If
voltage is 2.06 Volts/cell, (49.4V/battery set) or higher full recovery can
be expected, given sufficient time (average 1-2 weeks for batteries that
are heavily sulfated).
3. Connect the BatteryMINDer to the battery set. Charge battery set to its
maximum level. Allow battery set to rest for a minimum of 8 hours before
retesting. If improvement is seen, continue until battery set's voltage
reaches full capacity level or no further increase is seen. Refer to Open
Circuit No Load Voltage table.
4. Note: Do not expect to completely dissolve sulfate in a day. Long
established sulfate will require a longer period to be fully dissolved. Be
patient and you will rewarded with a “sulfate-free” battery set.

BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 8 P/N 483CEC1-MNL
Detailed Specifications
Plastic enclosure material: UL-94V0 Noryl or PC or PC+ABS
Enclosure Dimension: Approx. 9.06 in. (230mm) (L) x 4.72 in.
(120 mm) (W) x 2.36 in. (60 mm) (H)
Weight: Approx. 2.86 lb. (1.3 Kg)
Operating temperature: -20°C/-4°F to 40°C/104°F
Storage temperature: -40°C/-40°F to 85°C/185°F
Operating Humidity range: 0 to 95% RH
SIMPLIFIED OPERATING INSTRUCTIONS
Read and thoroughly understand ALL SAFETY Instructions, pages
3 - 5 including Preparing to Charge, DC Connection Precautions, Unit
Location and Qualifying Your Battery Set BEFORE proceeding further.
1. Install Ring Terminal Assembly (RTA-2415) to the first and last battery
in the series connected 48-V grouping. Use a digital volt meter to
assist. Observe Polarity bands: Red = Positive, Black = Negative.
2. Ambient Temperature Sensor, ATS -1 comes already installed on the
Temperature Sensor input connector (4). Do not detach.
3. Plug AC power cord (6) into a 120 Vac electrical outlet.
4. Observe POWER GREEN steady.
5. Observe BATTERY SET CONNECTION GREEN/RED LED indicator
(3E):
If lit RED, reverse battery set connector attachments on battery set.
IF IN DOUBT REGARDING ANY OF THE ABOVE, REFER TO Detailed Operating
Instructions, page 15.

BatteryMINDer® Model 483CEC1
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BatteryMINDer 483CEC1 Features
1Battery Type Selector button
2Battery Charge Stage Indicators: See Table on next page
3LED Indicators: See Table on next page
4Temperature Sensor input connector with ATS-1 Ambient Temperature
Sensor installed (included)
5Output cord with quick connect plug
6Ring Terminal cordset with quick connect plug (included)
7Mounting tabs
8EZC-01 EZ Connector with screws (included)
9Input power cordset
5
7
4
6
9
Refer to enlarged view
of unit label with detailed
descriptions on Page 11
for Sections 1, 2and 3
VDC 483CEC1 LABEL---P/N 701-100476-01-R
2
7
1
3
8

BatteryMINDer® Model 483CEC1
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BatteryMINDer 483CEC1 Features Con't. from Previous Table
Meaning Action
2A
VOLTAGE: LOW,
REJECTED
Start of charge AMBER STEADY ON
= battery set fully discharged.
RED FLASHING = Battery set's
voltage is near zero volts.
Allow BatteryMINDer to try to
restore battery set.
2B Battery set is being constant current
charged to about 80%.
Allow BatteryMINDer to charge
battery set.
2C Battery set is being constant voltage
charged to about 95%.
Allow BatteryMINDer to charge
battery set.
2D
Maintenance mode. Battery set is
being topped off to 100%.
Allow BatteryMINDer to
maintain and desulfate battery
set indefinitely.
3A
POWER
GREEN STEADY = AC power
connected.
GREEN FLASHING = ECO mode
(no battery set connected, very low
standby power mode).
None required.
3B
BATTERY WEAK
Battery set's voltage is low at start of
charge OR voltage is low after testing
stage.
Allow BatteryMINDer to attempt
to restore battery set if low at
start of charge. Replace battery
set if voltage is low after testing
stage.
3C
BAD CELL
RED FLASHING = one or more cells of
the battery set are dead.
Battery set must be replaced.
3D
DESULFATING
FLASHING = battery set is being
desulfated.
None required.
3E
BATTERY
CONNECTION
GREEN STEADY = battery set
connected properly.
RED STEADY = battery set connect
improperly.
If needed, correct battery set
connection.
3F
TESTING
BLUE STEADY = test in progress,
pause in charging. (Tests to see if
battery set holds charge.)
None possible.
3G
TEMPERATURE
COMPENSATION
Meaning: BLUE STEADY = cold
temperature compensation being
applied.
GREEN STEADY = hot temperature
compensation being applied.
None required.

BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 11 P/N 483CEC1-MNL
BatteryMINDer 483CEC1 Unit Label close-up
VDC 483CEC1 LABEL---P/N 701-100476-01-R
2
1
3
A
ADCB D
C B
E G
F

BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 12 P/N 483CEC1-MNL
LED INDICATION TABLE
POWER GREEN
Green Steady AC power connected
Green Flashing ECO mode
BATTERY CONNECTION GREEN RED
Green Steady Battery set connected correctly
Red Steady Battery set connected incorrectly
BATTERY WEAK AMBER
Amber Steady Battery set requires soft-start charging or battery set's voltage
is < 50.0V after analysis stage
BAD CELL RED
Red Flashing Battery set's voltage is < 46.0V after analysis stage
TESTING BLUE
Blue Steady Analysis stage
DESULFATING BLUE
Blue Flashing Desulfating pulses are in process
TEMPERATURE COMPENSATION GREEN BLUE
Green Steady Ambient temperature > 27°C/80°F
Blue Steady Ambient temperature < 21°C/70°F
VOLTAGE LOW AMBER REJECTED RED
Initial qualication of the battery set's condition (at the beginning of Soft-Start stage)
Amber Steady Voltage: 12V - 42V
Red Flashing Voltage: < 12V (Low Voltage)
Charging Stages
• Soft-Start is used if a battery set’s voltage is under 42V when charging
begins. It uses a low constant current to slowly bring up voltage. This
prepares a weak or neglected battery set for the Constant Current stage.
• Constant Current (sometimes called Bulk) is the main charging stage.
The maintenance-charger puts out a constant current of 3A, its maximum
current. Battery set's voltage rises until the battery set reaches the
optimal charging voltage.
• Constant Voltage (sometimes called Absorption) is the second charging
stage. The maintenance-charger regulates the current given to the

BatteryMINDer® Model 483CEC1
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battery set to maintain a constant voltage. As the battery set nears a full
charge, the current needed to maintain this voltage decreases. Once the
current falls below a 0.10A change per hour, the stage is complete. It will
be in this stage for a minimum of one hour.
• Battery Test is administered by reading your battery set's voltage while
resting the battery set for 10 minutes. A voltage of under 50.0V indicates
a weak battery set, under 46.0V indicates a shorted cell. The battery
set is tested at completion of the Constant Voltage stage, and every 12
hours while in Float.
• Float (sometimes called Maintenance) is the maintenance-charger’s
long term stage. The maintenance-charger can and should be left
connected indefinitely. This will keep the battery set fully charged
ensuring no sulfate can form. The maintenance-charger maintains float
voltage using very little power as it actively monitors the battery set and
adjusts its output several times a second.
Indicator Light Details
• Power light is GREEN anytime the maintenance-charger is plugged into
AC Power.
• Battery Connection light is GREEN when the unit it is correctly
connected to a battery set. If the Battery Connection light is RED the
polarity is reversed. The positive and negative terminals need to be
switched or there is a short circuit.
• Battery Weak light is AMBER if the Soft-Start mode is used or the
battery set fails a Battery Test. The indicator will stay on until the battery
set passes a Battery Test.
A neglected battery set can take over 2 weeks of desulfation to correct.
If after 2 weeks it still reads as a Weak Battery, there is likely internal
physical damage.
• Bad Cell if the battery set is under 46.0V after a Battery Test.
The maintenance-charger shuts off output to avoid any damage to your
battery set. Loads or banks of batteries may trigger this mode if they are
too large for this maintenance-charger.
• Testing light is BLUE when the unit is performing a Battery Test (see
Charging Stages).
• Desulfation light flashes BLUE any time the unit is desulfating. The

BatteryMINDer® Model 483CEC1
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BatteryMINDer desulfates any time it is outputting current.
• Temperature Compensation light is GREEN if the temperature is over
27°C/80°F, BLUE if the temperature is under 21°C/70°F. BatteryMINDer
CEC model includes an ambient temperature sensor which allows it to
vary the output voltage (-0.112V/°C) as necessary to properly charge
your 48V battery set. Batteries charged at higher temperatures without
compensation will overcharge and may out-gas. Batteries charged at
lower temperatures without compensation will undercharge allowing
sulfation to build, possibly leading to the battery set freezing. By using
temperature compensation, the BatteryMINDer ensures your battery set
will never over or under charge, even in extreme conditions.
Battery Type Characteristics:
• Odyssey / PLT (pure lead tin) uses heavy duty construction packed with
pure lead plates which mean that you get more power - twice the overall
power and three times the life of conventional batteries.
• The Wet cell comes in two styles; Serviceable and Maintenance free. Both
are lled with electrolyte and are basically the same.
• AGM (absorbed glass mat) is a special design glass mat designed to
wick the battery electrolyte between the battery plates. AGM batteries
contain only enough liquid to keep the mat wet with the electrolyte and if
the battery is broken no free liquid is available to leak out.
• Sealed batteries are "maintenance free" and won't emit any corrosive
fumes like ooded batteries do.
• Gel Cell batteries contain a silica type gel that the battery electrolyte
is suspended in. This thick paste like material allows electrons to ow
between plates but will not leak from the battery if the case is broken.
Usually a Gel Cell will be identied with the label "GEL" on the battery.
• More often than not AGM Batteries are mistakenly identied as Gel Cell
Batteries. Both batteries have similar traits; such as being non-spillable,
deep cycle, may be mounted in any position, low self discharge, safe for
use in limited ventilation areas, and may be transported via Air or Ground
safely without special handling.

BatteryMINDer® Model 483CEC1
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DETAILED OPERATING INSTRUCTIONS
Installed properly, your maintenance-charger is set to provide your battery set
with what it needs to out-live and out-perform any similar battery set used in
the same application-conditions by a factor of two.
Read and thoroughly understand all safety instructions, pages
3 - 7 including Preparing to Charge, DC Connection Precautions,
Maintenance-Charger Location and Qualifying Your Battery Set before
proceeding further.
1. Insert output cord plug into EZC-01 installed connector (see EZC-
01 Installation Instructions, next page). Note: Always grip cord by
the Plug, not wire when inserting and removing to avoid damage.
Damage to the cord set-plug is NOT COVERED BY WARRANTY.
2. Plug the unit’s power cord into a standard – grounded 120 VAC electrical
outlet. The power on LED indicator will light GREEN. Within 30 seconds,
if it does not light GREEN check the outlet to be sure it is functioning. In
addition, be sure if outlet is controlled by a switch, no one will accidentally
shut off the power to the outlet. Check for correct polarity = (no error RED
LED indicator). If error indicator is lit, reverse the maintenance-charger’s
output connections to the battery set.
3. Maintenance-charger will automatically start within 15 - 30 seconds.
The Bulk LED Indicator will light GREEN. The maintenance-charger
will now begin charging by first checking the battery set to determine
its voltage and ability to accept a charge. Should the battery set not
have a normal fully discharged voltage (42V or less) the unit will begin
charging in the “Soft-Start” mode to determine if the battery set can
be safely charged. If it cannot, the Soft-Start LED will light RED and
charging will be stopped. Battery set should be carefully checked
under a load by a qualified person before further attempting to charge it.
Note: If the battery set does not have a minimum no load
OCV (Open Circuit Voltage) of 12 volts, the Soft-Start LED will
light RED and maintenance-charger will reject battery set.
No further effort should be made to charge this battery set with this
maintenance-charger or any charger. Discard this battery, unless it has
just been subjected to a long period of continuous discharge under a
load such as can occur with leaving lights on. Allow such a battery set
to “Rest” for several hours (overnight if possible) before determining if
it is defective. Be very suspicious of any 48V battery set that does not
have at least 44V (OCV) before it is recharged. It may well be seriously
damaged and unsafe for any type of use or recharge. The unit’s Battery
Condition Indication LED will help you determine if the battery set is less
than 44V (YELLOW).
4. After battery set has been fully charged, Float stage LED will light. The
battery set may not be able to be fully charged, may be too large or

BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 16 P/N 483CEC1-MNL
too deeply discharged to be fully charged in the normal time allowed
by maintenance-charger. If you are certain battery set is not defective,
having read and understood completely all of the above concerns and
conditions, proceed to reboot the maintenance-charger by unplugging
from the wall (AC), disconnecting from the battery set (DC) and waiting
a minimum of 30 seconds before reconnecting the battery set and then
the AC. This allows maintenance-charger to begin charging battery set
again. If battery set is not defective it should be able to be fully charged
after being restarted. After sufficient time has lapsed the Float stage LED
Indicator (Features table, p. 10, item 2D) will illuminate confirming when
/ if battery set is now fully charged.
OCV=Open Circuit No Load Voltage
OCV - “Rested” Voltage Full Capacity
Percentage
48V
51.6 - 52.4 100%
50.4 - 51.6 75%
49.6 - 50.4 50%
48.8 - 49.6 25%
48.0 - 48.8 0%
<44 = shorted
EZC-01 Installation
The EZC-01 Connector is universal, ush-mountable
for use on any BatteryMINDer Charger-Maintainer;
it allows BatteryMINDers to be quickly connected or
disconnected from battery sets located in vehicles such
as golf carts, people movers, boats and more.
IMPORTANT INFORMATION ON USING PRODUCT
OUTDOORS: Always mount units in vertical position
with cord sets exiting downward to ensure weather tight
integrity and in clear sight so LED Indicators are always visible. Unit must be
mounted this way to ensure long term trouble-free life including weatherproof
integrity. Mounting in any other manner or using unmounted
(parallel to ground) except indoors may cause unit to fail
due to water intrusion that is unable to drain correctly.
For best connection use with BatteryMINDer Ring Terminal
assembly RTA-2415. Use 7/8" hole saw bit to install. Drill
small test hole to be sure no interference with other wires
or parts. Close protective cover securely to ensure water
tightness.

BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 17 P/N 483CEC1-MNL
TROUBLESHOOTING GUIDE
PROBLEM POSSIBLE CAUSE SOLUTION
Power ON indicator
does not light after
being plugged into
AC for 30 seconds.
AC outlet is dead.
Plug in a lamp or other appliance to check
for voltage. If controlled by a wall switch,
be sure switch is on and try to prevent
accidental shut off while maintenance-
charger is working.
VOLTAGE indicator
lights RED solid.
(See page 10, item
2A)
Output lead connections
to the battery set may be
reversed.
Switch (reverse) connections at the battery
set.
Battery set's voltage
<12 volts.
Battery set may be damaged and should not
be recharged. Allow battery set to “recover”
by letting it “REST” without a load.
Battery set was just recently
removed from a load (lights,
electronic equipment) or
used for extended time
without a maintenance-
charger.
If battery set is healthy and just deeply
discharged it should recover its voltage
(rise above 12 volts) sufficiently to allow
maintenance-charger to begin an attempt
to fully recharge it.
Battery set has “RESTED”
and still cannot be recovered
– recharged.
Battery set should be safely discarded –
recycled.
Battery Set Weak
Indicator lights RED
blinking.
Battery set may be weak,
heavily sulfated, or too large
to fully charge before unit
times out.
Battery set may be so large
it may require a second full
recharge.
Reboot unit by unplugging from AC
electrical outlet, disconnect from battery
set so there will be no electrical power
going to the unit from either direction,
wait a minimum of 30 seconds, connect to
battery set first then plug into AC outlet
Battery set Weak
Indicator lights
YELLOW
(Before battery set
has been completely
charged).
Battery set can be weak due
to sulfation, self discharge or
was very deeply discharged.
Attempt a full recharge and recheck after
completion. If still YELLOW, follow next
procedure (“After battery set has been
completely charged.”)
Battery set Condition
Indicator lights
YELLOW
(After battery set
has been completely
charged).
Battery set still has an
unacceptable level of
sulfation.
Reboot unit by unplugging from AC
electrical outlet, disconnect from battery
set so there will be no electrical power
going to the unit from either direction,
wait a minimum of 30 seconds, connect to
battery set first then plug into AC outlet
Rested: A battery set that has been as fully charged as possible and left disconnected
from maintenance-charger or any type load overnight.

BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 18 P/N 483CEC1-MNL
NOTES
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BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 19 P/N 483CEC1-MNL
FOR REPAIR OR REPLACEMENT
All returns must be authorized by VDC Electronics.
In the event that you believe your product may be defective, you MUST speak
to a VDC Electronics technician at 1-800-379-5579 x6 (M - F, ET) before
proceeding further. If you must return the unit, the technician will give you
an RMA #. Please use Return Form found on batteryminders.com/ under
Shipping & Returns when returning your product.
BatteryMINDer Model 483CEC1
Serial Number ___________________________
Place of purchase ___________________________
Date of purchase ___________________________
RMA# ___________________________
Please register your unit on-line within 10 days of
purchase. Due to the ever-changing technology
associated with this BatteryMINDer®unit, we may be
unable to keep you informed of signicant upgrades,
changes, etc. without your registration. The information
you provide upon registration will be used to keep a
record of your purchase and will assist in providing
support should you ever need to contact our
Technical Service department:
[email protected]; 800-379-5579 x6 (ET).
IMPORTANT NOTICE
BatteryMINDer®Five-Year Warranty Registration
batteryminders.com/ under Registration
NOTES
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BatteryMINDer® Model 483CEC1
Rev. A-051216 Page 20 P/N 483CEC1-MNL
BatteryMINDer®Guarantee and Warranty Policy effective Jan. 2013.
ALL Returns and Replacements must be authorized by a VDC Electronics
technician. Units must only be returned to VDC Electronics, Inc.,
NOT TO THE DEALER FROM WHOM IT WAS PURCHASED.
One-Year 100% Unconditional Money Back Guarantee:
Your BatteryMINDer product is guaranteed within the rst year to perform as
claimed or VDC Electronics, Inc. will refund your full purchase price including all
taxes, shipping or handling cost applicable to the purchase. Customer will return
product to VDC Electronics at their expense.
Please call 800-379-5579 x6, M - F, 9 AM - 5 PM (ET) to speak to a technician and
have your unit available when you call. This information is required:
• Your contact information
• Product serial number
• Proof of purchase
The Technician will provide you with an RMA number and shipping information.
Please be sure to write this down. You will be required to ll out this form to complete
your return: http://www.batteryminders.com/returns/. Clearly write your RMA number
on the outside of the package you are returning. We suggest using a carrier that
provides tracking information. VDC Electronics is not responsible for packages lost in
transit to VDC Electronics. If the unit is to be replaced, it is shipped by ground with free
shipping. Expedited shipping is available at extra cost.
Five-Year Limited Warranty:
Your BatteryMINDer product is warrantied for FIVE years from date of purchase
at retail against defective material or workmanship. We make no warranty
other than this limited warranty and expressly exclude any implied warranty
including any warranty for consequential damages. This limited warranty is not
transferable.
• If the technician determines defective unit should be repaired, customer will
return product at their expense. Once we receive the unit it will be repaired
and shipped back to customer, all at no charge. Expedited shipping is
available at extra cost.
• If the technician determines unit does not need repair but only needs
replacement, customer will be required to pay a $9.95 shipping fee for the
replacement unit. This fee may be subject to change without notice. There
is no cost for the replacement unit itself. Expedited shipping is available at
extra cost.
Please call 800-379-5579 x6 M - F, 9 AM - 5 PM (ET) to speak to a technician and have
your unit available when you call. The technician will do troubleshooting to see if the
product is defective. If it is, then this information is required:
• Your contact information
• Product serial number
• Proof of purchase
The Technician will provide you with an RMA number and shipping information.
Please be sure to write this down. You will be required to ll out a form to complete
your return which can be found on: http://www.batteryminders.com/shipping-policies/.
Clearly write your RMA number on the outside of the package you are returning. We
suggest using a carrier that provides tracking information. VDC Electronics is not
responsible for packages lost in transit to VDC Electronics.