Teledyne TDMC+ User manual

Copyright © Teledyne Battery Products 2020, all rights reserved
TDMC+
Teledyne Dual Mode
12 and 24 VDC, Lead-Acid Battery Charger
Redlands, CA 92374
1 [phone]
1 [phone]
[e-mail]
Product Name: TDMC+
Part Number: TDMC-01
Document:
Revision: A
Revision Date: 10 September 2021

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Teledyne Battery Products recommends you read the entire user manual before assembling and using
the battery charger. For any questions or concerns please email support:
[e-mail] or call 1 [phone] / 1 [phone].
Contents
Quick Reference.......................................................................................................................................... 3
Product Description .................................................................................................................................... 4
Precautions and Warnings.......................................................................................................................... 5
Batteries.................................................................................................................................................. 5
Location................................................................................................................................................... 5
Grounding and AC Power Cord............................................................................................................... 5
DC Output Connection............................................................................................................................ 6
Charger.................................................................................................................................................... 6
Personal Precautions .............................................................................................................................. 6
Charger Operation ...................................................................................................................................... 7
Organization of the Screen and Options................................................................................................. 7
LED Indicators ......................................................................................................................................... 9
Charging Methods..................................................................................................................................... 10
Normally Discharged Lead-Acid Battery Three Stage Charge Method................................................. 10
Details of Three Stage Charge Method................................................................................................. 10
Deeply Discharged or Sulphated Lead-Acid Battery Two Stage Charge Method ................................. 11
Details of the Two Stage Charge Mode ................................................................................................ 12
Charging Specifications......................................................................................................................... 13
Unit Specifications .................................................................................................................................... 13
Charger Settings.................................................................................................................................... 14
Field Test / Calibration Check ................................................................................................................... 15

TDMC+ Teledyne Dual Mode Charger
Questions? Write to: [e-mail] Page 3/15
Or call: 1 [phone] / 1 [phone].
Teledyne Battery Products recommends you read the entire user manual before assembling and using
the battery charger. For any questions or concerns please email support:
[e-mail] or call 1 [phone] / 1 [phone]
Quick Reference
•Connect (or Disconnect) a battery only when the charger is either
unplugged from AC (off) or when the display indicates “-not
charging-“.
•For proper polarity connect the Positive (Red / +) charging cable to
the Positive terminal on the battery. Connect the Negative (Black /
-) charging cable to the Negative terminal on the battery.
Reversing these connections will result in the charger displaying a
“Reverse Polarity” error.
•When not charging, the charger screen looks similar to the
illustration shown on the right. The screen is organized in 6 sections as denoted by letters A-F:
•Battery Voltage and Battery Current shown in Screen Section E: this information is shown in
all modes and updates continuously.
▪Indicated Voltage will be 00.0V when a battery is not connected; or will reflect the
voltage of a connected battery.
▪Indicated Amperage will be 00.0A
•Charger Operational Status shown in Screen Section F: indicates whether the charger is “not
charging” and idle, or if a charge cycle is in process.
•Charger Voltage mode: User selects charger voltage for 12V or 24V operation as appropriate
for the battery to be charged by pressing the button in Screen Section A.
▪Caution: If a 12V battery is charged with a 24V charge curve the battery may be
overcharged causing potentially serious damage.
▪Caution: if a 24V battery is charged with a 12V charge curve the battery may be
undercharged, potentially damaging the battery. Please refer to the LT batteries CMM,
Section 5.1.2, 5.1.3, and section 5.1.4 page 11.
•Charger Current mode: User selects for 6A to 1A as appropriate for the battery to be charged
by pressing the button in Screen Section B.
▪Caution: Always follow battery Component Maintenance Manual (CMM) guidance.
•Charge Cycle End Condition: User selects amperage or time limited charge by pressing the
button in Screen Section C.
▪Amperage (.5A) –the charger will follow a three-stage charge mode recommended for
use with all normally discharged lead-acid batteries.
The final stage of the three-stage mode is a constant float maintenance charge. The
battery may be left on constant float and will maintain charge until use.
▪Time-Limited (65 hours to 10 hours) –the charger will follow a two-stage charge mode
recommended for use with deeply discharged or sulphated lead-acid batteries. Follow
CMM and see guidance (section 6) for calculating the recommended time limit.
•Go! Button: User initiated charge cycle
▪After confirming charger configuration, press the button in Screen Section D to start the
charge cycle.
00.0V 00.0A
- Not Connected -
Volt Cur End At
24V 6A .5A
A DB C
E
F
A B C C
Idle Screen

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•Quick Start
•Plug in charger, ensure charger shows “not Charging” in Idle Screen Section F.
•Connect battery, verify voltage in Section E has changed.
•Select Charge Voltage (Press button in Screen Section A), Charge Current (Screen Section B)
and Charge Cycle End Condition (Press button in Screen Section C).
•Press Go! (Press button in Screen Section D)
•Screen Section F will show “Charge Complete” when the charge cycle ends successfully.
Product Description
The Teledyne Battery Products TDMC+ is a battery charger for 12V and 24V lead-acid batteries. It
offers two microprocessor-controlled precision charging method: a three-stage charging method for
normally discharged batteries, and a two-stage charging Method for recovering sulphated or overly
discharged batteries.
The charger offers an internationally recognized AC input connector, wide input voltage range
operation, wide operating temperature operation, a sealed chassis with external convection-cooled
heat fins, reverse polarity detection, temperature and voltage protection and integrated voltage and
current monitor. The TDMC includes a battery connection cable with crocodile clips for a wide variety
of battery terminals.
Power Cord
TDMC-01 Unit
Universal Battery Charge Cable

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Precautions and Warnings
Batteries
•Use caution when handling or charging batteries
•Use caution when charging at high current; monitor the battery regularly for overheating during
high current charging. Stop charging if the battery temperature exceeds 120F (50C).
Allow battery to cool to room temperature before restarting. Any battery that overheats has an
internal fault and should be rejected and recycled.
•Wear eye protection when handling, cleaning, working around, or charging batteries
•Verify that the battery rating corresponds to the charger output voltage setting, i.e. 12V to 12V,
24V to 24V
•Ensure the charger is “not charging” or off when making or breaking a battery connection.
•Never charge a battery that is, or appears to be: cracked, damaged, swollen, frozen, emitting a
strange odor, or leaking.
•Clean battery terminals. When cleaning, be careful to prevent corrosion from coming in contact
with eyes.
•Never short the terminals of a battery.
Location
•Use charger in a well-ventilated area: Lead-Acid batteries under charge may emit hydrogen gas.
•Remove battery from airplane before connecting charger.
•Place charger and battery on a smooth, even, uncluttered surface.
•Allow adequate airflow around the unit during charging to prevent overheating.
•Maintain minimum 3” (7cm) distance to wall
•Do not use the charger on a soft, carpeted, upholstered, or varnished surface
•Do not mount charger directly over, or directly under a charging battery.
•Use charger indoors only: the unit is closed to external airflow but not sealed, do not expose the
battery charger to water, snow, ice, moisture, fuel, oils, pressurized gasses, combustible or
inflammable substances.
•Only use in an area where all charger electrical cords will avoid hot surfaces, such as exhaust
pipes, and moving parts, such as fan wheels.
•Place the battery in a location where items will not be dropped on it.
•This charger can be used with Lead-Acid batteries only. Avoid charging batteries of differing
chemistries in the same work area in order to prevent accidental connection of charger to any
chemistry other than Lead-Acid.
Grounding and AC Power Cord
•Never use a cable that is worn, frayed or damaged.
•The battery charger must be grounded to reduce risk of electric shock. The charger must use an
electrical cord with a grounding plug. The outlet must be properly installed and grounded in
accordance with applicable codes and ordinances.
•Never connect the AC plug into an electrical outlet if you are wet or barefoot.
•DANGER –Never alter the AC cord or plug- if it will not fit in the outlet, have a proper outlet
installed by a qualified electrician.

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•Be sure that any AC adaptors or extension cords provide all three connections (power, return
and ground), and are of suitable rating for the charger product.
DC Output Connection
•DC connections must be made before starting the charge cycle.
•Never use a cable that is worn, frayed, nicked or damaged or is in any other condition than will
make a reliable connection to the battery.
•An intermittent cable connection will interfere with the proper operation of the charger.
•Do not disconnect the charger from the battery while the charge cycle is in operation.
•Be careful not to short the terminals of a battery together when connecting or disconnecting
the DC connection.
•Make sure that the cable’s terminals are free of any corrosion.
Charger
•Never operate a charger that has been damaged in any way including impact, shock, or
excessive exposure to moisture, plague, pestilence or locusts.
•Do not disassemble the charger. No user serviceable parts inside. Return the product to
Teledyne Battery Products for service: call or email for return instructions.
Personal Precautions
•Have plenty of fresh water and soap nearby in case battery electrolyte contacts skin, clothing
or eyes. Wear complete eye and skin protection when connecting, disconnecting, handling and
charging batteries. In the event of an accident, immediately flood the affected area with water
and get medical attention.
•Someone should be within the range of your voice, aware of your activity, and be able to come
to your aid when you are working with or near a battery.
•Never smoke, or allow a spark or flame, in the vicinity of a battery or engine.
•Remove jewelry
•Wear eye protection

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Charger Operation
The Teledyne Battery Products TDMC+-01 offers two distinctive battery charging methods that are
recommended for all lead-acid batteries. The choice of method is guided by user selections that the
user makes based upon the condition of the battery. Once a charge cycle is initiated the charger will
operate automatically and stop. The LCD text display and the LED color lights display inform the user of
proper connection, charger operation and status of an operational charge cycle.
Organization of the Screen and Options
•When not charging, the charger screen looks similar to the
illustration shown on the right. The screen is organized in 6
sections as denoted by letters A-F:
•Battery Voltage, Battery Current and Charger Temperature:
this information is shown in all modes and updates
continuously.
▪Indicated Voltage will be 00.0V when a battery is not
connected; or will reflect the voltage of a connected
battery.
▪Indicated Amperage will be 00.0A
•Charger Operational Status:
•indicates whether the charger is “not charging” and idle, or if a charge cycle is in process.
•Other possible indications include:
▪Error: Rev Polarity –indicates an error that the charger senses that a battery has been
connected in reverse polarity.
For proper polarity connect the Positive (Red / +) charging cable to the Positive terminal
on the battery. Connect the Negative (Black / -) charging cable to the Negative terminal
on the battery. Reversing these connections results in the charger displaying a “Reverse
Polarity” error. In the event “Rev Polarity” is displayed, disconnect the battery and check
connections. This error does not require a power reset to clear the error.
▪Error: Not Connected –indicates an error that the charger senses a connection problem
or under-voltage condition during a charge. Disconnect the battery. Inspect the power
cabling for worn, frayed, corroded, or broken wiring. Verify the battery shows a nominal
voltage for its rating, and that the charger is properly configured. Reset the charger by
disconnecting and reconnecting power.
▪Error: Over-Voltage –indicates an error that the charger reaches an over voltage
condition during the charge. There may be a problem with the connected battery or an
opening in the output cabling. Disconnect the battery. Inspect the power cabling for
worn, frayed, corroded, or broken wiring. Verify no other circuits are connected to the
battery. Reset the charger by disconnecting and reconnecting power.
▪Error: Over-Current –indicates that the charger reaches an over current condition during
the charge. There may be a problem with the connected battery or a short in the output
cabling. Disconnect the battery. Inspect the power cabling for worn, frayed, corroded, or
broken wiring. Verify no other circuits are connected to the battery. Reset the charger
by disconnecting and reconnecting power.
00.0V 00.0A
- Not Connected -
Volt Cur End At
24V 6A .5A
A DB C
E
F
A B C C
Idle Screen

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▪Error: Over-Temp –indicates the internal temperature of the charger is outside specified
operational limits. Disconnect the battery. Disconnect power from the charger and
allow it to cool. Ensure there is adequate airflow around the charger and that other
environmental factors are not contributing to overheating.
▪Error: Under-Volt –an error occurred during charging where battery voltage did not rise
during constant-current mode. This error may indicate that the battery design voltage
did not match the 12V/24V voltage selector, or it may indicate a problem with one or
more cells in the battery.
Reset the charger by disconnecting and reconnecting power. Ensure that the 12V/24V
voltage selector is correct for the battery and the battery shows a reasonable resting
voltage before restarting the charge cycle.
▪Error: Timeout –an error occurred during charging where the charger stage failed to
complete in the allotted time. See charging Method details for
allotted times.
▪Note: in most Error conditions, Selection Items A, B, C and D will
vanish and the charger will not allow further operation until power
has been turned off and on, and the error condition is remedied.
•Charger States
The charger can be in one of four operational states
•Not Charging –the charger is idle and supplying no energy to the battery.
In this state, the user may make selections to configure the charger and
to start the charge cycle.
•Charging –the charger is charging according to the selections made by the user. In this state
the user may select to pause the charge.
•Charging Paused –The charger has paused the charge Method and allows the battery to rest.
The user may select “Go!” to resume the charge cycle or “End” to cancel the charge cycle
(Not Charging).
•Charge Completed –the charger has completed the selected charge cycle and is waiting for
the user to confirm this message by pressing “End”.
•Button Operation
•Each press of a Voltage, Current or Charge-Cycle-End button advances the selection above
that button one step. The order of sections is as shown on the right.
00.0V 00.0A
- Not Connected -
Volt Cur End At
24V 6A .5A
A DB C
E
F
A B C C
Menu Items

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LED Indicators
Four Red/Green indicators provide an easy way to monitor the operation of the charger from a
distance.
•Status
•Off –Not Charging / Charger is idle
•Red –Stopped on Error
•Red/Green –Charging
•Green –Charge Complete
•Connection
•Red –Battery is reverse polarity
•Red/Green –Battery not detected
•Green –Battery is connected correctly
•Charge Stage
•Off –Not Charging / Charger is idle
•Red –Constant Current
•Red/Green –Constant Voltage
•Green –Float
•Fault
•Red –Fault detected, unit requires service
•Red/Green –Over temperature, allow unit to cool before use
•Green –No faults detected
Status
Connection
Stage
V
C
Fault

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Charging Methods
This section provides details for the two charging methods and how to use them.
Normally Discharged Lead-Acid Battery Three Stage Charge Method
For any normally discharged lead-acid battery, configure the charger for the three-stage charge mode
as follows:
•Connect (or Disconnect) a battery only when the charger is either unplugged from AC (off) or
when the display indicates “-not charging- “.
•Charger Voltage mode: Select charger voltage for 12V or 24V operation as appropriate for the
battery to be charged by pressing the button in Screen Section C.
Caution: If a 12V battery is charged with a 24V charge curve the battery may be overcharged
causing potentially serious damage.
•Charger Current mode: Select for 6A to 1A as appropriate for the battery to be charged by
pressing the button in Screen Section D.
Caution: Teledyne Battery Products does not recommend using a charge current (Amps) that is
greater than the battery capacity in Amp hours. Always follow battery Component Maintenance
Manual (CMM) guidance. CMM are available at www.TeledyneBattery.com.
•Charge Cycle End Condition: There is only one .5A current set point ending condition For
Normally Discharged Lead-Acid Battery Charge Method. select “End at .5A” in Screen Section E.
With this selection, the charger will follow the three-stage charge mode recommended for use
with all normally discharged lead-acid batteries.
•Go! Button: User initiated charge cycle
•After confirming charger configuration, press the button in Screen Section F to start the
charge cycle.
Details of Three Stage Charge Method
1. Stage 1: Constant Current –Bulk Charge
With the battery in a discharged state, charging initiates
in constant current mode. Current is maintained at
user specified current as the battery voltage increases.
The charger automatically progresses to Stage 2 based
upon the battery voltage. This stage is allowed a
maximum of 6 hours.
2. Stage 2: Constant Voltage –Absorption
When the battery voltage has reached the 12 or 24V
set-point, charging continues in constant voltage mode.
Voltage is maintained as the charging current
decreases. The charger automatically progresses to
Stage 3 based upon the battery current. This stage is allowed a maximum of 6 hours.
3. Stage 3: Constant Float –Finishing Charge
When the charge current has dropped off to the .5A setpoint, the charge is complete.
The charger continues in float voltage mode. Voltage is maintained at float voltage level to
keep the battery charged without boiling out electrolyte or overcharging the battery.
The battery may be left connected to the charger and in constant float until use.
Three Stage Charge Algorithm

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Deeply Discharged or Sulphated Lead-Acid Battery Two Stage Charge Method
For any deeply discharged lead-acid battery, configure the charger for the two-stage charge mode as
follows:
•Connect (or Disconnect) a battery only when the charger is either unplugged from AC (off) or
when the display indicates “-not charging- “.
•Charger Voltage mode: Select charger voltage for 12V or 24V operation as appropriate for the
battery to be charged by pressing the button in Screen Section C.
Caution: If a 12V battery is charged with a 24V charge curve, the battery may be overcharged
causing potentially serious damage.
•Charger Current mode: Select for 6A to 1A as appropriate for the battery to be charged by
pressing the button in Screen Section D.
Caution: On deeply discharged batteries, Teledyne Battery Products recommends a 1A charge
curve and recommends not using a charge current (Amps) that is greater than 1/10 of the battery
capacity in Amp hours. Always follow battery Component Maintenance Manual (CMM) guidance,
consult the battery documentation, service bulletin or battery manufacturer for guidance or use
the lowest 1A setting.
•Charge Cycle End Condition: The Deeply Discharged or Sulphated Lead-Acid Battery Charge
Method ending condition is based on time. The time should be based upon the battery
capacity in amp hours, and the desired charging current. select an ending condition in hours in
Screen Section E.
•Observe the Battery Capacity in Amp Hours (Ah) as recommended by the battery CMM
section on Deep Discharge Recovery. Round this number to the nearest 5 Amp-hours.
•Observe the selected charge current (1A).
•Calculate the charge time using the equation or the table provided.
•Calculation method:
𝐵𝑎𝑡𝑡𝑒𝑟𝑦 𝐶𝑎𝑝𝑎𝑐𝑖𝑡𝑦 (𝐴ℎ)
𝐶ℎ𝑎𝑟𝑔𝑒 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 (𝐴)= 𝐶ℎ𝑎𝑟𝑔𝑒 𝑇𝑖𝑚𝑒 (ℎ𝑜𝑢𝑟𝑠)
Round the result down to the nearest 5 hours. If the result
returns less than 10 hours, the selected charge current is too
high, select a lower charge current.
•Table Method
▪Select the row (1) that corresponds to the Battery
Capacity (Ah).
▪Select the column (2) that corresponds to the desired
charge Current (A).
▪Identify the Charge Time at the intersection of the
chosen row and column.
•Example 1: The Teledyne 7638-44 battery is a 24V, 44 Ah
battery, 1A charge:
▪The battery capacity is 44Ah, round to 45.
•Divide 45/1 = 45
•45 is already evenly divided by 5
▪This column, row and result are marked in the table
Battery Charge Timetable
1 2 3 4 5 6
80 80 40 25 20 15 10
75 75 35 25 15 15 10
70 70 35 20 15 10 10
65 65 30 20 15 10 10
60 60 30 20 15 10 10
55 55 25 15 10 10
50 50 25 15 10 10
45 45 20 15 10
40 40 20 10 10
35 35 15 10
30 30 15 10
25 25 10
20 20 10
15 15
10 10
Charge Current (A)
Battery Capacity (Ah)
Charge Time (hours)
2
1
3

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•
•Example 2: The Teledyne 7638-44 battery is a 24V, 44 Ah battery, 2A charge:
▪The battery capacity is 44Ah, round to 45.
•Divide 45/2 = 22.5
•22.5 is not evenly divisible by 5, round 22.5 down to 20.
▪On the table, select the same row as in (1), select the next column to the right, observe
the answer 20 is to the right of 45.
•Go! Button: User initiated charge cycle
•After confirming charger configuration, press the button in Screen Section F to start the
charge cycle.
Details of the Two Stage Charge Mode
1. Stage 1: Constant Current –Bulk Charge
With the battery in a discharged state, charging
initiates in constant current mode. Current is
maintained at user specified current as the battery
voltage increases. The charger automatically
progresses to Stage 2 based upon the battery
voltage. This stage is allowed a maximum of 6 hours.
2. Stage 2: Constant Voltage –Absorption
When the battery voltage has reached the 16 or 32V
set-point, charging continues in constant voltage
mode for the selected duration. Voltage is
maintained as the charging current decreases.
3. Charge Complete –The charge cycle is complete
Two Stage Charge Algorithm

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Charging Specifications
General Parameters
12V Specification
24V Specification
Maximum Charging Current
6A +/- .5A
Standby battery Drain
<100 uA with AC disconnected
Voltage Regulation
+/- .5%
Output noise and ripple
<150mV, 100MHz BW
Efficiency
Minimum 85% under worst line/load conditions
3 Stage Parameters
12V Specification
24V Specification
Max Absorption Voltage
14.4V +/- 100mV
28.8V +/- 100mV
Absorption to Float Current
500mA +/1 100mA
500mA +/1 100mA
Float Voltage
13.15V +/- 100mV
26.30V +/- 100mV
Overvoltage Protection
15.2V +/- 200mV
30.4 +/- 200mV
2 Stage Parameters
12V Specification
24V Specification
Duration of Stage 1 + 2
10 –80 hours, selectable
Max Absorption Voltage
15.0V +/- 100mV
30.0V +/- 100mV
Unit Specifications
Electrical Input
Voltage
85 VAC –270 VAC, 50/60 Hz
Max Power
250 Watts
Configuration
Line, neutral, chassis ground
Connector
IEC 60320 C14 power inlet (C13 cord plug)
Supplied Cable
18AWG grounded cord with NEMA 5-15
grounded Type B wall connector
Electrical Output
Voltage
32 VDC maximum
Current
6A maximum
Configuration
Positive, Negative
Connector
Two pin circular
Supplied Cable
14 AWG battery cord with crocodile style
battery clips
Environment
Orientation
May be used horizontally or vertically
Location
For indoor use only.
Operation
-22F to 140F (-30C to 60C)
Storage
-40F to 176F (-40C to 90C)
Certification
UL (U.S)
Under Evaluation
CUL (Canada)
Under Evaluation
CE
Under Evaluation
FCC
Compliant to Part 15 of FCC Rules
Mechanical Dimensions
(unit only)
Height
11.5” (290mm)
Depth
5” (130mm)
Width
6” (150mm)
Weight
6 lbs (2.7 Kg)

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FCC STATEMENT This device complies with Part 15 of the FCC rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and (2) This device must
accept any interference received, including interference that may cause undesired operation. NOTE:
This equipment has been tested and found to comply with time limits for a Class B digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
interference energy and, if not installed and used in accordance with the instructions, may case
harmful interference to radio communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures: A. Re-orient or
relocate the receiving antenna. B. Increase the separation between the equipment and the receiver. C.
Connect the equipment into an outlet or on a circuit different from that to which the receiver is
connected. D. Consult the dealer or an experienced radio/TV technician for help.
Charger Settings
•The charger automatically retains the settings selected at the start of a charge cycle and returns
to them at the end of a charge cycle and at the next power on.
Software Version
The TDMC only has one software configuration. Software cannot be updated by the user and does
not need to be updated. Software may change due to production variation or component
differences. A charger’s software version can be determined in the field by following these steps:
1. Power unit off.
2. Press and hold any of the four buttons A-D
3. Power unit on while continuing to hold the button

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Field Test / Calibration Check
This unit does not require periodic calibration. Validate proper operation of the unit and internal
sensor calibration by following this field test procedure.
Required Items:
1. Charger
2. 12V or 24V Lead Acid Battery or at least 10A capacity (preferably 50% - 80% charged)
3. Calibrated DC Multimeter with 30V and 10A ranges
4. Time reference (watch, clock, etc. with elapsed seconds)
5. Power Cord
6. Appropriate Battery connection cord for the selected battery
Approximate Duration of Test: Ten minutes, plus setup time.
Field Test Procedure:
1. Power on Charger with battery disconnected
2. Verify screen shows 00.0V and 00.0A
3. Connect 12V or 24V battery (as available) and configure charger:
a. Select 12V or 24V (as appropriate),
b. Select 6A,
c. Select End At .5A; press Go!
4. Set DMM to voltage mode, connect DMM in parallel with battery.
5. Verify DMM matches voltage on screen (+/- .5V)
6. Press Pause.
7. Verify DMM matches voltage on screen (+/- .2V)
8. Set DMM to current mode, connect DMM in series with battery (10A mode)
9. Resume charge (press Go!)
10. Verify DMM matches current on screen (+/- .15A)
11. Cancel charge: Select Pause, then select End.
12. Leave DMM in circuit in current mode (10A mode), and configure charger:
a. Verify selection on screen is still 12V or 24V (as appropriate),
b. Select 1A, End At 65h (or any time limit –charge will be interrupted) press Go!
13. Verify DMM matches current on screen (+/- .15A)
14. Observe countdown timer over period of 30 seconds as measured by time reference
15. Verify that 30 seconds elapsed on time reference and unit simultaneously (+/- 2 seconds)
16. Cancel charge: Select Pause, then select End.
17. Remove DMM from circuit and reconnect battery to charger
18. Set DMM to voltage mode, connect DMM in parallel with battery.
19. Verify DMM matches voltage on screen (+/- .2V)
20. Disconnect battery and reconnect battery in reverse polarity.
21. Verify screen indicates reverse polarity
22. Verify reverse polarity LED
23. If the unit fails Verification steps, discontinue use and contact Teledyne for support.