Deltran Battery Tender User manual

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Deltona Transformer Corporation
12V / 12V Heavy Duty Charger
Dual Independent Outputs: 20 Amps each!
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS: This manual contains important
safety and operating instructions for theBATTERY TENDER® HEAVY
DUTY PORTABLE 12V-12V DUAL 20 AMP CHARGER CAREFULLY
READ THESE INSTRUCTIONS BEFORE USING THE BATTERY
CHARGER.
WARNING AND CAUTION LABEL DEFINITIONS:
WARNING
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in serious injury or death.
CAUTION
CAUTION indicates a potentially hazardous situation, which, if not
avoided, may result in minor or moderate injury.
CAUTION
CAUTION used without the safety alert symbol indicates a potentially
hazardous situation that if not avoided, may result in property damage.
GENERAL PRECAUTIONS
WARNING
Battery posts, terminals and related accessories contain lead and lead
components, chemicals known to the State of California tocausecancer
and birth defects or other reproductive harm. Always wash your hands
after handling these devices.
WARNING
Do not operate the battery charger with damaged AC power cords or
plugs or DC output cords or accessories - Replace accessories
immediately. If either the AC power cord or the DC output cords are
damaged the battery charger should be sent back to the factory for
repair.
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CAUTION
WORKING WITH LEAD ACID BATTERIES AND BATTERY CHARGERS:
All lead acid batteries have the potential to emitgasses that may combine into
a combustible or explosive mixture. In many cases,it is possiblethat lead acid
batteries will emit these gasses during normal discharge and charging
operations. Becauseof this potentialdanger, it isimportantthatyoufollowthe
precautions recommended by both the battery and battery charger
manufacturers before using either one.
USING MANUALS: Study all of the battery manufacturer's precautions and
specific recommendations for safe operation such as not removing cell caps
while charging and the recommended ratesof charge (chargeroutput current).
CAUTION
CHARGER VOLTAGE COMPATIBILITY: NEVER use a battery charger
unless the battery voltage matches the output voltage rating of the charger.
Do not use a 12-volt charger with a 6-volt battery and vice-versa.
CHARGER LOCATION: LOCATE thecharger as far away fromthebatteryas
is allowed by the length of the output cable harness. NEVER set the charger
above the battery. NEVER set the charger on a surface constructed from
combustible material. NEVER place the battery, the charger, or any of the
electrical connections between them in an area that is likely to become wet.
EXCESSIVE MOISTURE: Do not expose the battery charger or any of its
electrical connections (either AC or DC) to rain, snow, or extremely high,
condensing humidity.
CHARGER ATTACHMENTS: Do not use attachments that are not
recommended or sold by the charger manufacturer. To do otherwise may
result in the risk of electric shock, fire, or possibly some other unforeseen
potential personal injury situations.
HANDLING POWER CORDS: When handling electric power cords, always
pull by the plug rather than by the cord. This will reduce the risk of damage to
both the plug and cord, and it will minimize the likelihood of electric shock
resulting from that damage.
LOCATION OF POWER CORDS: Make sure all electric power cords are
located so that they cannot be stepped on, tripped over, or otherwise
subjected to damage or stress.
MONITORING SEALED & NON-SEALED BATTERIES: When leaving a
battery charger connected to either a sealed (AGM or GEL) or non-sealed
(flooded battery) for extended periods of time (weeks, months, etc.),
periodically check the battery to see if it is unusually warm. This is an
indication that the battery may have a weak cell and that it could go into a
thermal runaway condition. If the batteryreleases an excessiveamount ofgas
or if the battery gets hotter than 130°F (55°C) during charging, disconnect the
charger and allow the battery to cool. Overheating may result in plate
distortion, internal shorting, drying out or other damage. For flooded batteries,
also check individual cell fluid levelsagainst manufacturer's recommendations
for safe operation.

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WARNING
ELECTRIC SPARK & OPEN FLAME: NEVER smoke or allow a source of
electric spark or open flame in the vicinity of the battery or engine. (For
example: Don't charge the battery next to a gas water heater.)
VENTILATION: Do not operate the charger where ventilation is restricted.
The intent here is to allow sufficient airflow to minimize and dissipate the heat
generatedby the chargerand to diffusethe gasses thatmay be emittedby the
battery.
CHARGER MAINTENANCE: NEVER disassemble the charger or attempt to
do internal repairs. Take it to a qualified service technician. Assembling the
charger incorrectly may result in the risk of electric shock or create a fire
hazard.
WARNING
EXTENSION CORDS: An extension cord should not be used unless
absolutely necessary. Using improper extension cord could result in a risk of
fire and electric shock. If extension cord must be used, make sure that:
¾The pins on the extension cord plug have the same number, size, and
shape as those of the AC power cord plug on the charger;
¾The extension cord is properly wired and is in good electrical condition; &
¾The wire size is as specified in Table 1 below.
TABLE 1: EXTENSION CORD
LENGTH & MINIMUM SAFE CONDUCTOR SIZE
Note: The smaller the AWG number, the larger the conductor diameter.
Length of Cord (feet) 6 to 99 100 to 150
Length of Cord (meters) 2 to 30 30 to 46
Size of Conductor (AWG) 12 10
Conductor Diameter (in / mm) 0.093 / 2.36 0.117 / 2.97
PERSONAL PRECAUTIONS
WARNING
WHEN YOU WORK NEAR LEAD-ACID BATTERIES:
1. Someone should be within range of your voice or close enough tocome to
your aid if you have an accident;
2. Have plenty of fresh water and soap nearby in case battery acid contacts
skin, clothing, or eyes;
3. Wearcomplete eye protection and protectiveclothing.Avoid touchingyour
eyes while working near a battery. If battery acid contacts your skin or
clothing, wash immediately with soap and water. If acid enters an eye,
immediately flood the eye with running cold water for at least 10 minutes
and get medical attention as soon as possible;
4. Be extra cautiouswhen handling metal tools around abattery. If youdrop
a metal tool near a battery it might spark or create a short circuit between 4
the battery terminals and some other metal part. Either event may cause
a dangerous electrical shock hazard, a fire, or even an explosion;
5. Remove all personal metal items such as rings, bracelets, necklaces,and
watches when working with a lead-acid battery. A lead-acid battery can
producea short-circuitedcurrent high enoughtowelda metal ring or other
piece of jewelry, causing a severe burn;
6. Use the BATTERY TENDER® HEAVY DUTY 12V-12V DUAL 20
AMP CHARGER for charging lead-acid batteries only. It is not intended
tosupply power toan extra low-voltageelectrical system orto charge dry-
cell batteries. Charging dry-cell batteries may cause them to burst and
cause injury to persons and damage to property;
INFORMATION NOTE ABOUT DRY-CELL BATTERIES:
There are some wet, non-spillable, lead acid batteries on the market whose
manufacturers'make the claimthat they aredry-cellbatteries.Thesebatteries
are sealed, gas-recombinant, starved electrolyte, possibly with AGM
(Absorbed Glass Mat) type construction. It is perfectly safe to use the
BATTERY TENDER® HEAVY DUTY 12V-12V DUAL 20 AMP
CHARGERto charge these types of batteries. The dry-cell battery warningis
intended for non-rechargeable, alkaline and other similar types of batteries. If
youhave any doubtabout the typeof battery thatyouhave,pleasecontactthe
battery manufacturer before attempting to charge the battery.
7. NEVER charge a visibly damaged or frozen battery.
PREPARING TO CHARGE: First, follow all General &
Personal Precautions as previously explained, and then
continue.
WARNING
IF THE BATTERY MUST BE REMOVED FROM THE VEHICLE:
1. To avoid an electric arc (or spark), turn off or disconnect all of the
accessories in the vehicle. Then always remove the cable that is
connected to grounded terminal from battery first;
2. If necessary, clean the battery terminals. Be careful to keep the corrosion
and other debris from coming in contact with your eyes;
3. If the battery is not a sealed battery, then if necessary, add distilled water
to each cell until the battery acid solution reaches the level specified by
battery manufacturer. Do not overfill;
4. Check the polarity of the battery posts.
5. Connect the AC power plug to the 120 VAC electrical service outlet. Then
follow the normal start up procedures for the BATTERY TENDER®
HEAVY DUTY 12V-12V DUAL 20 AMP CHARGER.
WARNING
IF THE BATTERY REMAINS INSTALLED IN THE VEHICLE:
1. Place both the AC and DC power cords in the best position to avoid
accidental damage by movable vehicle parts,i.e. hoods, doors,ormoving
engine parts (fan blades, belts, or pulleys).
2. Check the polarity of the battery posts. If the positive (pos, p, +) post is
connected to the vehicle chassis, then the vehicle has a positive ground

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system. Ifthe negative (neg, n, -)postisconnected to the vehicle chassis,
then the vehicle has a negative ground system. Negativeground systems
are the most common.
3. Connect the AC power plug to the 120 VAC electrical service outlet. Then
follow the normal start up procedures for the BATTERY TENDER®
HEAVY DUTY 12V-12V DUAL 20 AMP CHARGER.
WARNING
POSITIVE & NEGATIVE VEHICLE GROUND SYSTEMS:
1. If the positive (pos, p, +) battery post is connected to the vehicle chassis,
then the vehicle has a positive ground system. If the negative (neg, n, -)
battery post is connected to the vehicle chassis, then the vehicle has a
negativegroundsystem. Negative groundsystems are the most common.
2. For negative ground systems,connect the positive(red)alligator clip, or
ring terminal to the positive battery post. Then connect the negative
(black) alligator clip to the negative battery post. You may also connect
thenegative (black) alligatorcliptothevehiclechassis,butDO NOT make
the negative charger alligator clip connection to the carburetor, fuel lines,
or thin, sheet metal parts. Make that connection to the engine block or a
heavy gauge metal part of the frame.
3. For positive ground systems, connect the negative (black) alligator clip
to the negative battery post. Then connect the positive (red) alligator clip
to the positive battery post. If you prefer, you may also connect the
positive (red) alligator clip to the vehicle chassis, but DO NOT make the
positive(red) charger alligatorclip connection tothe carburetor, fuellines,
or thin, sheet metal parts. Make that connection to the engine block or a
heavy gauge metal part of the frame. Then connect the positive (red)
alligator clip, or ring terminal to the vehicle chassis. Do not make the
positivecharger clip orring connection tothe carburetor,fuellines, or thin,
sheet metal parts. Make that connection to the engine block or a heavy
gauge metal part of the frame.
WARNING
USING
UNGROUNDED
AC 120 VAC
SERVICE
OUTLETS:
Figure 2
1. FOR USE ONLY IN T HE UNITED STATES, THE USE OF A 3 TO 2
PRONG GROUND ADAPTER PLUG IS NOT ALLOWED IN CANADA.
Your battery charger is designed for use on a nominal 120-volt circuit. It
comesequipped with agrounding plug thatlooks like theone illustratedin
Figure 2A. A temporary adaptor (Figure 2C), may be used to connect this
plug to a two-pole receptacle as shownin Figure 2Bif a properly grounded
outlet is not available. The temporary adapter should be used only until a
properly grounded outlet can be installed by a qualified electrician.
2. DANGER - Before using the adapter as illustrated, be certain that the
center screw of outlet plate is grounded.The green-colored rigid ear orlug
extending from the adapter must be connected to a properly grounded
ADAPTER
METAL
SCREW
COVER
OF GROUNDED
OUTLET BOX
GROUNDING PIN
(
A
)
GROUNDED OUTLET
(
B
)
(
C
)
GROUNDING
MEANS
ADAPTER
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outlet - make certain that it is grounded. If necessary, replace original
outlet cover plate with a longer screw that will secure adapter ear or lug to
outlet cover plate and make ground connection to a grounded outlet.
ADDITIONAL CHARGER INFORMATION
AUTOMATIC CHARGING AND BATTERY STATUS
MONITORING: The BATTERY TENDER® HEAVY DUTY 12V-12V
DUAL 20 AMP CHARGER is completely automatic and may be left
connected to both AC power and to the battery that it is charging for long
periods of time. However, it is prudent to periodically check both the battery
andthe charger fornormal operation duringthese extended chargingperiods.
The BATTERY TENDER® HEAVY DUTY 12V-12V DUAL 20 AMP
CHARGER has status lights that indicate the operating mode of the charger,
and the condition of the battery that is connected to the charger. The charger
outputpower, voltage, andcurrent all dependon the chargealgorithm and the
condition of the battery that is being charged. The continuity of the AC power
that is connected to the charger is also a significant factor.
WARNING
BATTERY CONNECTION OR AC POWER INTERRUPTED:
1. If the battery connection to either charger output channel is interrupted,
then the output of that channel will be shut off. However, as long as AC
power is not interrupted, the program selection will remain the same as it
was prior to the connection being interrupted.
2. If the AC power to the charger is interrupted then the output of both
channels will revert to the default Flooded battery type.
The charger operates in one of the 4 primary charge modes: the BULK mode
(full charge power, constant current, increasing battery voltage, battery is 0%
to 75% or 80% charged), the ABSORPTION mode (high constant voltage,
decreasing current, battery is 75% to 100% charged), the EQUALIZATION
mode (higher constant voltage, with lower current limit), or the STORAGE /
FLOATMAINTENANCE mode (lowconstant voltage, minimalchargecurrent,
battery is fully charged, typically 100% to 103%).
SPECIAL FEATURES: The BATTERY TENDER® HEAVY DUTY
12V-12V DUAL 20 AMP CHARGER has the following special features:
SPARKPROOF: The battery charger DC output alligator clips must be
connected to a battery before any output voltage is developed.
SHORT CIRCUIT PROTECTION: The battery charger can sustain a
short circuit connection directly across its DC output terminals indefinitely
without any risk of either electric shock or excessive heat.
REVERSE POLARITY PROTECTION: The battery charger is
protected internally against any damage due to the DC output leads being
connectedto the opposite polarity batterypost. No damagewillresultto either
the battery or the battery charger.
TIME REQUIRED TO CHARGE A BATTERY:

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TheBATTERYTENDER® HEAVY DUTY 12V-12VDUAL20AMPCHARGER
chargesat a maximum rate of 20 Amps perchannel, simultaneously(20Amp-
Hours per hour per channel). Therefore, a fully discharged 60 Amp-Hour
battery will take approximately 2.25 hours to recharge to 75% capacity. To
complete the full, optimum charge cycle on a 12 Volt battery will take
approximately 6 hours.
WORKING WITH A DEAD BATTERY OR ABATTERYWITH A VERY
LOW VOLTAGE:
If you try to charge a dead battery having a voltage below 3 Volts, an internal
safety circuit prevents the BATTERY TENDER® HEAVY DUTY 12V-12V
DUAL20 AMP CHARGERfrom delivering fullcharge power. The chargerwill
deliver a small, low-power current to bring the battery voltage up to 3 Volts.
NOTE:
If a 12 Volt, Lead-Acid battery has an output voltage of less than 9 volts when
it is at rest, when it is neither being charged nor supplying electrical current to
an external load, there is a good chance that the battery is defective. As a
frame of reference, a fully charged 12-Volt, Lead-Acid battery will have a rest-
state, no-load voltage of approximately 12.9 volts. A fully discharged 12-Volt,
Lead-Acid battery willhave a rest-state,no-load voltage of approximately 11.4
volts. That means that a voltage change of only 1.5 volts represents the full
range of charge 0% to 100% on a 12-Volt, Lead-Acid battery. Depending on
the manufacturer, and the age of the battery, the specific voltages will vary by
a few tenths of a volt, but the 1.5-volt range will still be a good indicator of the
battery charge %.
STATUS INDICATOR LIGHTS: The following describes the LED
indicator light operation:
¾RED BATTERY SELECTOR LIGHT ON – AGM Battery selected.
¾GREEN BATTERY SELECTOR LIGHT ON –FLOODED Battery selected.
This is the default setting.
¾RED CHARGE AMPERES STATUS LIGHTS ON STEADY – Whenever
the red charge amperes status lights are on steady, the present value of
the charge current is in the range of the highest numerical label on the
farthest light to the right that it illuminated. The 5 red charge amperes
status lights are labeled 4, 8, 12, 16, & 20. Each label indicates the
highest value of the charge current being delivered when the red light is
on. All red lights with lesser value labels than the highest light illuminated
will also remain illuminated. If the charge current being delivered by one
of the charger channels is between 12.1 and 16 amps. (The lowest value
is an approximation. The actual low value may be closer to 12 amps as
long as it is more than 12 amps.) In this case, the16 ampere light will be
on, and so will the 4, 8, and 12 ampere lights. The 20 ampere light willnot
be on. If the charge current is between just over 16amps, then all 5 of the
red lights will be on.
¾GREEN CHARGE COMPLETE STATUS LIGHT FLASHING - When the
green light is flashing, the battery is fully charged and ready for service. It
is also possible that the red charge ampere status light labeled “4” may
also be on when the green light comes on and begins to flash. It is also
possiblethatadditional red charge amperestatus lights may come onafter
thegreen charge complete status light begins toflash. Thismayhappenif
the battery is supplying power to a load after the charge is complete, but
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the charger is still connected and operating in Float / Maintenance mode.
¾GREEN CHARGE COMPLETE STATUS LIGHT ON STEADY - This will
occur when the AC power is first turned on and again when the battery is
connected to the charger with the AC power on, and then finally when the
battery is fully charged.
WHEN YOU TURN ON THE AC POWER: All 4 of the voltage selector LEDs
around the voltage selector rocker switches turn on and stay on. The green
charge complete status light turns on & each of the 5 red charge ampere
status lights turn on in sequence from low to high until all 5 red lights are on.
Thenthe process reversesitself and insequence from highto low, eachofthe
5 red lights turn off until finally the green charge complete light also turns off.
Immediately after the green charge complete light turns off, both red battery
selector LEDs turn off, and the 2 green battery selector LEDs remain on.
WHEN YOU CONNECT THE ALLIGATOR CLIPS TO A BATTERY: The
green charge complete status light comes on. As soon as the first red charge
ampere status light comes on, the greencharge complete statuslight turns off.
Then more red lights will come on, in sequence until the optimum charge
current for the battery is achieved.
BATTERY SELECTION: AGM OR FLOODED: The selections can be made
separately. One channel can be charging with the FLOODED battery type
while you change the battery type selection on the other channel to AGM. To
select the battery type for each charger channel, with the AC power on, first
make sure that the alligator clips for that channel are NOT connected to the
battery.
1. To select FLOODED, do nothing, this is the default value. The Green
LED should be on with the Red LED off.
2. To select AGM, just move the MOMENTARY rocker switch to the AGM
position. The Red LED should turn off immediately and the Green LED
should come on.
TROUBLESHOOTING CHECK LIST:
1. NO CHARGER LIGHTS TURN ON AFTER THE AC POWER PLUG IS CONNECTED
TO THE AC ELECTRICAL OUTLET AND THE AC ON/OFF SWITCH IS TURNED ON:
Check the charger AC power plug connection at the AC electrical outlet. Check the cartridge
fuse (Bussmann ABC15A or equiv) on the back of the unit. Verify that the AC electrical outlet is
functioning properly by plugging in another appliance or a voltmeter.
2. THE GREEN CHARGER STATUS LIGHT GOES ON TOO SOON AFTER THE AC
POWER IS APPLIED TO THE CHARGER: The battery might already be fully charged, or
the charger connections at the battery may be intermittent, or the battery may be defective.
3. CHARGER IS CHARGING BUT THE GREEN CHARGE COMPLETE STATUS LIGHT
DOES NOT TURN ON IN A REASONABLE AMOUNT OF TIME: Remember, a large
battery may require more time to fully charge than originally expected. There may be another
appliance drawing electric power from the battery while it is charging, or the battery may be
defective. Also, a newly purchased battery may not be fully charged and may take longer to
charge initially.
4. THE GREEN BATTERY SELECTOR LIGHT COMES ON AFTER THE CHANNEL
OUTPUT WAS SET TO AGM AND THE RED VOLTAGE SELECTOR LIGHT WAS ON.
The AC power may have flickered off & on. You must remove the alligator clips from the battery
and repeat the AGM battery selection process.

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BATTERY CONNECTIONS TO THE CHARGER:
In each case the nominal battery voltage must be 12 volts. Always exercise
caution when connecting the charger to the batteries. Pay particular
attention to the diagrams below when the batteries are in series or parallel.
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SPECIFICATION SUMMARY:
Technical Specifications
Input Voltage / Frequency 100 to 132 VAC / 60 Hz
Input Current (Maximum) 9.0 Amps RMS
Output Current Typical 20 Amps DC per channel simultaneously
Output Voltage 12 Volts DC
Charger Output Voltage Amplitudes throughout the entire charge algorithm, including absorption,
equalization, and float maintenance, are consistent with the optimum charging recommendations of
the major lead-acid battery manufacturers.
Maximum Operating Temperature 50 °C Typical
Charger Case Dimensions:
11.5 in (292mm) L x 8.625 in (219 mm) W x6.625 in (168 mm) H.
Shipping Weight: with Accessories: Approx. 28 lbs (12.75 kg)
Design Conformance & Revision: All charger products are 100% inspected and electrically tested
prior to shipment. All battery charger designs are proprietary and subject to change without notice.
WARRANTY: 2 YEARS FROM DATE OF PURCHASE
DELTRAN CORPORATION, 801 INTERNATIONAL SPEEDWAY BLVD., DELAND, FLORIDA
32724 MAKES THIS LIMITED WARRANTY TO THE ORIGINAL PURCHASER. THIS
WARRANTY IS NOT TRANSFERABLE.
Deltran warrants the 12V / 12V Heavy Duty charger for 2 years from the date of purchase
against defective material or workmanship only. If Deltran qualified service technicians
determine that the likely cause ofthe batterychargerproductmalfunction isdueto either defective
material or workmanship, then the battery charger willbe repaired orreplacedatthe discretion of
Deltran.
THIS LIMITED WARRANTY IS VOID under the following conditions:
1) The product is misused, subjected to careless handling, or operated under conditions of
extreme temperature, shock, or vibration beyond Deltran’s recommendations for safe and
effective use.
2) The product is disassembled or repaired by anyone who is not a Deltran factory authorized
service representative.
3) The electrical connections to either the AC input or the DC output of the charger are modified
without the express written consent of the Deltran engineering department.
The manufacturer makes no warranty other than this limited warranty andexpressly excludes any
implied warranty including any warranty for consequential damages.
THIS IS THE ONLY EXPRESS LIMITED WARRANTY AND THE MANUFACTURER NEITHER
ASSUMES NOR AUTHORIZES ANYONE TO ASSUME OR MAKE ANY OTHER OBLIGATION
TOWARDS THE PRODUCT OTHER THAN THIS EXPRESS LIMITED WARRANTY. THE
MANUFACTURER MAKES NO WARRANTY OF MERCHANTABILITY OR FITNESS FOR
PURPOSE OF THIS PRODUCT AND EXPRESSLY EXCLUDES SUCH FROM THIS LIMITED
WARRANTY. SOME STATES MAY NOT ALLOW THESE EXCLUSIONS.
DELTRAN CORPORATION
801 International Speedway Blvd., DeLand, Florida 32724
Phone [phone] FAX [phone] www.batterytender.com