Lester X-Series SCR User manual

Lester X-Series SCR is a microprocessor-based, silicon-controlled rectifier (SCR) battery charger designed to optimize battery capacity and extend battery life. It features fully-automatic operation, a manual stop/start button, a low battery voltage start button, a self-diagnostic button, an ammeter, and status LEDs. The charger is suitable for off-board (shelf) or on-board (built-in) applications and can be used to charge wet, AGM, or gel deep-cycle, lead-acid batteries.

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USER’S MANUAL

Industrial Battery Charger

Important Safety,

Installation,

Operation, and

Maintenance

Instructions

*37414*

www.LesterElectrical.com

CHARGER RATINGS LABEL

The ratings label is located on the back of the charger. The label provides the model (MODEL), serial number

(SERIAL NO.), AC input configuration (AC VOLTS, AC AMPS, PHASE and HERTZ) and DC output specifications

(CELLS, DC VOLTS, DC AMPS and AMP-HRS) of the charger. TYPE indicates the factory-configured battery type and if the charger is configured for on-board operation.

An example charger ratings label is provided below.

Please fill in the blank label that is provided below with the information from the ratings label on your charger for future reference.

Document any configuration or settings changes that are made by marking the ratings label on your charger or on an additional label or tag attached to your charger.

SAVE THIS MANUAL: Keep it in a location where it is available to anyone who may operate the charger.

X-Series 2 of 20 User’s Manual

TABLE OF CONTENTS

CHARGER RATINGS LABEL ................................................................................................... 2

TABLE OF CONTENTS ............................................................................................................. 3

1. INTRODUCTION ................................................................................................................... 6

2. RECEIVING THE CHARGER ................................................................................................ 6

3. STORAGE ............................................................................................................................. 6

4. BATTERY TYPE ................................................................................................................... 6

5. OFF-BOARD (SHELF) VERSUS ON-BOARD (BUILT-IN) CHARGERS .............................. 7

5.1 Off-Board Chargers .................................................................................................. 8

5.2 On-Board Chargers .................................................................................................. 8

6. LOCATION AND INSTALLATION ........................................................................................ 8

6.1 On-Board Mounting .................................................................................................. 9

7. AC INPUT .............................................................................................................................. 9

8. DC OUTPUT ........................................................................................................................ 10

8.1 ROUND MOLDED 3-PIN PLUG ................................................................................ 10

8.2 DC OUTPUT FUSE ................................................................................................... 10

9. PROPER CARE OF DEEP-CYCLE MOTIVE POWER BATTERIES .................................. 11

9.1 Personal Safety Precautions .................................................................................. 11

10. CHARGER OPERATION .................................................................................................. 12

10.1 User Interface ......................................................................................................... 14

10.2 Low Voltage Start .................................................................................................. 15

10.3 Self Diagnostic and Faults .................................................................................... 15

11. LOCKOUT/INTERLOCK RELAY OPTION ....................................................................... 16

12. MAINTENANCE ................................................................................................................ 16

12.1 Check Charger Area .............................................................................................. 16

12.2 Visual Inspections ................................................................................................. 16

12.3 Battery Conditions ................................................................................................ 16

13. TROUBLESHOOTING AND SERVICE ............................................................................. 17

LIMITED WARRANTY ............................................................................................................. 19

X-Series 3 of 20 User’s Manual

IMPORTANT SAFETY INSTRUCTIONS

11.

12.

13.

SAVE THESE INSTRUCTIONS – This manual contains important safety and operating instructions.

Before using battery charger, read all instructions and cautionary markings on battery charger, battery, and product using battery.

LOOK FOR THIS SYMBOL TO POINT OUT SAFETY PRECAUTIONS.

**IT MEANS: BE ALERT—YOUR SAFETY IS INVOLVED. IF YOU DO**

NOT FOLLOW THESE SAFETY INSTRUCTIONS, INJURY OR

PROPERTY DAMAGE CAN OCCUR.

DANGER: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, CAREFULLY READ AND

FOLLOW THESE IMPORTANT SAFETY AND OPERATING INSTRUCTIONS BEFORE INSTALLING

OR OPERATING THE CHARGER.

INSTRUCTIONS IMPORTANTES CONCERNANT LA SECURITÉ.

WARNING: TO REDUCE THE RISK OF FIRE, INSTALL THIS BATTERY CHARGER ON A

SURFACE OF NON-COMBUSTIBLE MATERIAL SUCH AS BRICK, CONCRETE, OR METAL.

DANGER: RISK OF ELECTRIC SHOCK. DISCONNECT CHARGER FROM BATTERY AND AC

POWER BEFORE SERVICING. TURNING OFF THE CHARGER DOES NOT REDUCE THIS RISK.

7. DANGER: RISK OF ELECTRIC SHOCK. DO NOT TOUCH UNINSULATED PORTION OF AC OR

DC CONNECTORS OR UNINSULATED BATTERY TERMINAL.

8. DANGER: RISQUE DE CHOCKS ÉLECTRIQUES. NE PAS TOUCHER LES PARTIES NON

ISOLÉES DU CONNECTEUR DE SORTI OU LES BORNES NON ISOLÉES DE L’ACCUMULATEUR.

9. CAUTION: CHARGE ONLY LEAD-ACID BATTERIES. OTHER TYPES OF BATTERIES MAY

BURST CAUSING PERSONAL INJURY AND DAMAGE. BEFORE CHARGING ANY OTHER TYPE OF

RECHARGEABLE BATTERY, CHANGE THE CHARGER SETTINGS AS RECOMMENDED BY THAT

BATTERY MANUFACTURER.

10. ATTENTION: UTILISER POUR CHARGER UNIQUEMENT LES ACCUMULATEURS AU PLOMB À

ELECTROLYTE LIQUIDE. D’AUTRES TYPES D’ACCUMULATEURS POURRAIENT ÉCLATER ET

CAUSER DES.

CAUTION: DO NOT EXPOSE TO RAIN. INDOOR USE ONLY.

ATTENTION: NE PAS EXPOSER À LA PLUIE.

DANGER: TO PREVENT ELECTRICAL SHOCK, DO NOT TOUCH EITHER AC OR DC

UNINSULATED PARTS. MAKE SURE ALL ELECTRICAL CONNECTORS ARE IN GOOD WORKING

CONDITION. DO NOT USE CONNECTORS THAT ARE CRACKED, CORRODED OR DO NOT MAKE

ADEQUATE ELECTRICAL CONTACT. USE OF A DAMAGED OR DEFECTIVE CONNECTOR MAY

RESULT IN A RISK OF OVERHEATING OR ELECTRIC SHOCK.

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14.

15.

WARNING: HAZARD OF ELECTRIC SHOCK.

WARNING: LEAD-ACID BATTERIES GENERATE EXPLOSIVE GASES. TO PREVENT ARCING

OR BURNING NEAR BATTERIES, DO NOT DISCONNECT DC CHARGING CORD FROM BATTERIES

WHEN THE CHARGER IS OPERATING. PUSH THE “STOP/START” BUTTON TO TURN CHARGER

OFF. KEEP SPARKS, FLAME, AND SMOKING MATERIALS AWAY FROM BATTERIES.

16. WARNING: ALWAYS SHIELD EYES WHEN WORKING NEAR BATTERIES. DO NOT PUT

WRENCHES OR OTHER METAL OBJECTS ACROSS BATTERY TERMINAL OR BATTERY TOP.

ARCING OR EXPLOSION OF THE BATTERY CAN RESULT.

17. WARNING: BATTERIES PRODUCE HYDROGEN GAS, WHICH CAN EXPLODE IF IGNITED.

NEVER SMOKE, USE AN OPEN FLAME, OR CREATE SPARKS NEAR THE BATTERY. VENTILATE

THE AREA WHEN THE BATTERY IS CHARGING IN AN ENCLOSED PLACE.

18. WARNING: LEAD-ACID BATTERIES CONTAIN SULFURIC ACID, WHICH MAY CAUSE BURNS.

DO NOT GET ACID IN EYES, ON SKIN, OR CLOTHING. IF CONTACT WITH THE EYES OCCURS,

FLUSH IMMEDIATELY WITH CLEAN WATER FOR 15 MINUTES AND OBTAIN MEDICAL

ATTENTION.

19. WARNING: ONLY YOUR DEALER’S QUALIFIED SERVICE TECHNICIANS SHOULD PROGRAM

OR SERVICE THIS EQUIPMENT.

20. CAUTION: DO NOT OPERATE THE CHARGER IF IT HAS RECEIVED A SHARP BLOW, BEEN

DROPPED, OR OTHERWISE DAMAGED. HAVE YOUR DEALER’S QUALIFIED SERVICE

TECHNICIAN EXAMINE AND REPAIR AS NEEDED.

21. WARNING: DO NOT DISASSEMBLE THE CHARGER. HAVE THE CHARGER EXAMINED BY

YOUR DEALER’S QUALIFIED SERVICE TECHNICIAN. INCORRECT RE-ASSEMBLY OF THE

CHARGER MAY RESULT IN AN EXPLOSION, ELECTRIC SHOCK, OR FIRE.

22. CAUTION: MAKE SURE THE BATTERY SYSTEM HAS THE PROPERLY RATED VOLTAGE,

AMP-HOURS AND TYPE (“WET”, “AGM”, “GEL”, ETC.) FOR THIS CHARGING SYSTEM.

SAVE THESE INSTRUCTIONS

X-Series 5 of 20 User’s Manual

1. INTRODUCTION

This X-Series battery charger is an advanced, microprocessor-based, silicon-controlled rectifier (SCR) charger designed to optimize both daily battery capacity and overall battery life. It plugs directly into standard 120V, 15A,

60 Hz AC outlets/receptacles for use in off-board (shelf) or on-board (built-in) applications. The charger is natural convection cooled with no moving parts. It was factory-configured to charge wet, AGM, or gel deep-cycle, leadacid batteries, and includes an internal jumper that can be used to select between two battery profiles in the field.

This charger features fully-automatic operation with a manual stop/start button, low battery voltage start button, self diagnostic button, ammeter, and status LEDs.

Figure 1-1 provides specifications for the X-Series product line.

Model

Number

DC Output

Volts

DC Output

Amps

Amp-Hour Rating,

Rate (12 Hrs)

AC Input

Amps

Shipping Weight,

Approx (Lbs)

26900

27020

27010

27030

150 - 305

250 - 510

150 - 305

190 - 395

9.5

12.5

27060

27050

27000

150 - 305

170 - 350

105 - 210

13.5

14.5

11.5

Figure 1-1: X-Series Product Line Specifications

2. RECEIVING THE CHARGER

Unpack the charger and examine it for shipping damage. In the event that shipping damage is found, report it as a claim with the freight company.

3. STORAGE

When the charger is stored prior to being installed and powered up, it must be stored indoors in a clean and dry environment where the temperatures will remain within the range of -40 °F to 150 °F (-40 °C to 65 °C). The charger should be stored upright in the shipping carton that it was shipped in. This will help protect the charger from dust and abrasion. It should be stored in an area where it is not likely to be damaged. Do not stack anything on top of the charger.

4. BATTERY TYPE

WARNING: DISCONNECT BOTH AC AND DC POWER FROM THE CHARGER BEFORE OPENING THE

CASE. CONTACT WITH LIVE COMPONENTS WITHIN THE CHARGER COULD CAUSE ELECTRICAL

SHOCK, SERIOUS INJURY, OR DEATH.

This charger is designed to charge deep-cycle lead-acid batteries of wet/flooded, AGM (absorbed glass mat), or gel design. The charger is factory-configured to charge the type of battery indicated in the TYPE field on the charger ratings label (for example, “Wet”). Additionally, the charger includes a secondary battery profile available via an internal jumper on the control board. The last four (4) characters in the charger part number, available in the MODEL field on the charger ratings label, provide the battery profile codes for both the primary and secondary battery profiles. For example, charger part number 27030C84F1S1W1A1 has a primary battery profile code of

“W1” and a secondary battery profile code of “A1”. Figure 4-1 lists standard battery profile codes and their corresponding battery profiles. If a battery profile code for your charger is not listed in Figure 4-1, please contact your dealer regarding which battery profiles are available on your charger.

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Part Number Battery Profile Code Battery Profile

Figure 4-1: Standard Battery Profile Codes and Their Corresponding Battery Profiles

To change the active battery profile on your charger, remove the charger cover and position the jumper as shown in Figure 4-2. Profile 1 is the primary battery profile and the factory-configured jumper position. Profile 2 is the secondary battery profile. If changed from the factory-configured jumper position, Profile 1, mark the charger ratings label or add an additional label or tag.

Figure 4-2: Setting the Internal Battery Profile Jumper Determines the Battery Type

CAUTION: THIS CHARGER IS FOR USE ONLY ON RECHARGEABLE DEEP-CYCLE LEAD-ACID

BATTERY SYSTEMS OF THE SAME TYPE AS THE SELECTED BATTERY PROFILE. BATTERIES

IMPROPERLY MATCHED WITH THE CHARGER MAY BURST CAUSING PERSONAL INJURY AND DAMAGE

TO BATTERIES OR CHARGER.

Battery manufacturers frequently use the same battery cases for different battery types. Wet batteries have removable cell caps. Water electrolyzed by discharging and charging the battery is replaced through these openings. Sealed batteries are generally distinguished by non-removable cell caps. The physical appearance of the battery case is frequently the same as a wet battery, though the cell caps are generally not removable. Refer to the battery manufacturer's information panel on the battery case to determine the type battery you have. If the information panel is missing or not legible, do not use the battery.

5. OFF-BOARD (SHELF) VERSUS ON-BOARD (BUILT-IN) CHARGERS

X-Series chargers are available in either off-board or on-board configurations. Chargers configured for on-board use are denoted as such in the type field on the charger ratings label, (for example “wet/onbrd”).

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5.1 Off-Board Chargers

Off-board chargers are designed to be used in shelf or portable applications. They include rubber feet. If the

AC input plug is connected to AC power, a new charge cycle automatically starts when the DC output is connected to a battery pack of the proper voltage. Disconnecting and reconnecting AC power while the DC output remains connected to a battery pack WILL NOT automatically start a new charge cycle (unless a storage mode condition has been met). Disconnecting the DC output from the battery pack IS REQUIRED to automatically start a new charge cycle.

5.2 On-Board Chargers

On-board chargers are designed to be mounted on electric vehicles/equipment. They include steel feet with a pattern that provides numerous mounting options (see Section 6.1). If the DC output is connected to a battery pack of the proper voltage, a charge cycle automatically starts when the AC input plug is connected to AC power (unless a safety period of time has not passed since the successful completion of the previous charge cycle). Disconnecting the DC output from the battery pack is NOT REQUIRED to automatically start a new charge cycle.

6. LOCATION AND INSTALLATION

WARNING: DO NOT INSTALL THE CHARGER ON OR NEAR FLAMMABLE MATERIALS. POSITION

THE CHARGER ON A FOUNDATION OF STONE, BRICK, CONCRETE OR GROUNDED METAL.

WARNING: CHARGERS CAN IGNITE FLAMMABLE MATERIALS AND VAPORS. DO NOT USE NEAR

FUELS, GRAIN DUST, SOLVENTS, THINNERS, OR OTHER FLAMMABLES.

The charger may have been attached to a plywood board in the factory to protect it during shipping. If so remove the plywood shipping board before installation and operation of the charger.

Proper installation of the charger is important in order to achieve good performance and to prevent damage to the charger and batteries. The charger should be located in a clean, cool, dry, and well ventilated area. To permit free airflow for convection cooling, allow 2 inches (5.08 cm) minimum between the charger ventilation openings and any walls or other objects. Do not obstruct the airflow space around and beneath the charger.

Do not allow clothing, blankets, or other materials to cover the charger.

Install the charger in an area where the temperatures will remain within the range of -4 °F to 113 °F (-20 °C to 45

°C) and the relative humidity will remain below 95 percent (%). Exceeding these ranges will reduce the current capacity and possibly the service life of the charger. If the charger will be operated outside of these ranges, contact your dealer to verify if it will withstand these conditions and perform at the needed capacity.

Do not operate the charger with a damaged AC or DC cable or connector. Do not operate the charger if it has received a sharp blow, was dropped, or was otherwise damaged in any manner. Contact your dealer.

WARNING: REPLACE WORN, DAMAGED, OR CUT ELECTRICAL CORDS AND PLUGS IMMEDIATELY.

WARNING: KEEP DRY; DO NOT EXPOSE TO RAIN OR SPRAY. FOR STORAGE, KEEP CHARGER IN A

BUILDING. NE PAS EXPOSER A LA PLUIE.

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6.1 On-Board Mounting

On-board X-Series chargers are designed to be mounted on electric vehicles/equipment. They include steel feet with a pattern that provides numerous mounting options. A dimensional drawing of the on-board mounting pattern is provided in Figure 6.1-1.

Figure 6.1-1: On-Board Mounting Pattern

7. AC INPUT

This charger must be connected to a single-phase nominal 120 Vac, 60 Hz AC power source with a voltage of

110 Vac to 132 Vac (charge times increase at lower AC voltages). The frequency must be 57 Hz to 63 Hz.

Circuit breaker or fuse protection for the AC outlet to which the charger is connected should allow 15A per charger. Do not overload an electrical outlet.

This charger must be grounded to reduce the risk of electric shock. It is equipped with an AC cable with an equipment-grounding conductor and a grounding-type connector. The connector must be plugged into an appropriate outlet that is properly installed and grounded in accordance with the National Electrical Code and all local codes and ordinances.

DANGER: IMPROPER CONNECTION OF THE GROUNDING CONDUCTOR CAN RESULT IN A RISK OF

ELECTRIC SHOCK. DO NOT REMOVE GROUNDING PRONG FROM PLUG.

The conductor with insulation having an outer surface that is green, with or without a yellow stripe(s), is the equipment-grounding conductor. If repair or replacement of the AC cable or connector is necessary, do not connect the equipment-grounding conductor to a live terminal. Contact your dealer. This charger is equipped with a grounding connector as illustrated in Figure 7-1 A, for use on a nominal 120 Vac, 60 Hz circuit. A temporary adapter, as illustrated in Figures 7-1 B and C, may be used to plug this connector into a two-pole receptacle as shown in Figure 7-1 C if a properly grounded outlet is not available (NOTE: use of an adapter as shown in Figures 7-1 B and C is NOT permitted in Canada). The temporary adapter should be used only until a properly grounded outlet can be installed by a qualified electrician. The green-colored rigid ear extending from the adapter must be connected to a permanent ground such as a properly grounded outlet box.

DANGER: BEFORE USING THE ADAPTER AS ILLUSTRATED, BE CERTAIN THAT THE CENTER

SCREW OF THE OUTLET PLATE IS GROUNDED.

X-Series 9 of 20 User’s Manual

Figure 7-1: Grounding Methods

(NOTE: Use of an adapter as shown in Figures B and C is NOT permitted in Canada)

Use of an extension cord with the charger should be avoided. Use of an improper extension cord could result in a risk of a fire and electrical shock. If an extension cord is needed, use a three-conductor, No. 14 AWG (or larger) cord that is grounded, properly wired, and in good electrical condition, and keep the cord as short as possible.

Make sure that the pins on the connector of the extension cord are the same number, size, and shape as those on the AC connector on the charger. Locate all extension cords so that they will not be stepped on, tripped over, or otherwise subjected to damage or stress.

The charger includes an AC input circuit breaker to protect the charger and the system.

8. DC OUTPUT

Only charge battery packs with cell counts (CELLS) and DC voltages (DC VOLTS) equal to those listed on the ratings label on the back of the charger.

The DC output cordset includes a commonly-used connector/plug. The polarity of the charger connector/plug must be the same as the battery connector/receptacle. The “-” marked (BLACK) DC cable must be connected to the battery negative (-), and the “+” marked (WHITE) DC cable must be connected to the battery positive (+). The charger will not operate if the polarity is reversed.

8.1 ROUND MOLDED 3-PIN PLUG

If the DC cordset includes the round molded 3-pin plug for use with Club Car ® vehicles, it is important to understand that this charger is intended for use with vehicles without an onboard computer (OBC). If the charger is connected to a vehicle with an onboard computer, the charger will not start a charge cycle.

In addition to the battery negative (-) and battery positive (+) pins, this plug includes a third pin. This third pin is connected to battery negative (-) inside the charger. It can be used with an optional external relay that can be installed in the vehicle to provide lockout/interlock functionality.

Club Car ® is a registered trademark of Club Car Inc.

8.2 DC OUTPUT FUSE

The DC output fuse is a fast-acting fuse used to protect the charger and the system.

USE ONLY THE CORRECT SIZE IDENTICAL TYPE REPLACEMENT FUSES. FUSES ARE AVAILABLE

FROM A QUALIFIED SERVICE TECHNICIAN.

X-Series 10 of 20 User’s Manual

9. PROPER CARE OF DEEP-CYCLE MOTIVE POWER BATTERIES

Motive power batteries are subjected to severe deep-cycle duty on a daily basis. Although these batteries are designed to withstand such duty, the following precautions must be observed to obtain good performance and maximum cycle life.

CAUTION: ALWAYS WEAR PROTECTIVE EYE SHIELDS AND CLOTHING WHEN WORKING WITH

BATTERIES. BATTERIES CONTAIN ACIDS WHICH CAN CAUSE BODILY HARM. DO NOT PUT

WRENCHES OR OTHER METAL OBJECTS ACROSS THE BATTERY TERMINAL OR BATTERY TOP.

ARCING OR EXPLOSION OF THE BATTERY CAN RESULT.

1. When installing new batteries, be sure the polarity of each battery and the overall battery pack is correct.

Otherwise, battery and/or charger damage can result.

2. New batteries should be given a full charge before their first use because it is difficult to know how long the batteries have been stored.

3. New batteries and older batteries that have been in storage are not capable of their rated output until they have been discharged and charged a number of times. Consult the manufacturer of your batteries for more information.

4. DO NOT EXCESSIVELY DISCHARGE THE BATTERIES. Excessive discharge can cause polarity reversal of individual cells resulting in complete failure shortly thereafter.

5. Maintain the proper electrolyte level of wet (flooded) batteries by adding water when necessary. Distilled or deionized water is best for battery life. Never allow the electrolyte level to fall below the top of the battery plates. Electrolyte levels lower during discharge and rise during charge. Therefore, to prevent the overflow of electrolyte when charging, it is mandatory that water be added to cells AFTER they have been fully charged – do not overfill. Old batteries require more frequent additions of water than new batteries.

6. Hard crystalline sulfates form when batteries in storage are not maintained in a charged active state.

Internal self discharge can bring about the start of this condition in as little as three days in warm temperatures. Batteries not maintained and allowed to sit in storage will self discharge, sulfate and lose capacity. Repeated charging without using the batteries between charges can recover some of the lost power, range, and life, but some permanent loss should be expected.

7. Cold batteries require more time to fully charge. When the temperature falls below 65°F, the batteries should be placed on charge as soon after use as possible.

8. The tops of batteries and battery hold downs must be kept clean and dry at all times to prevent excessive self discharge and the flow of current between the battery posts and frame. Electrolyte spilled on batteries never dries or evaporates.

9. All connections to batteries must be maintained clean and tight. Due to heating and discharge rates, bolted connections loosen over time. Re-tighten the connections twice yearly to the torques specified by the battery manufacturers.

10. Follow all operating instructions, cautions, and warnings as specified in this manual, on the charger, in the battery manuals, and in the vehicle manuals.

9.1 Personal Safety Precautions

1. Have someone within the range of your voice and close enough to quickly come to your aid when you work near a lead-acid battery.

2. Ensure that ample fresh water and soap are nearby in case battery acid contacts your skin, clothing, or eyes.

3. Wear complete eye and clothing protection. Avoid touching your eyes while working near a battery.

4. If battery acid contacts your skin or clothing, wash immediately with soap and water. If acid enters your eye, immediately flush your eye with running cold water for at least 10 minutes, and get medical attention immediately.

5. NEVER smoke or allow a spark or flame to be in the vicinity of a battery.

6. Be extra cautious to reduce the risk of dropping a metal tool onto a battery. It could spark or short circuit the battery or other electrical components that could cause an explosion.

7. Remove personal metal items such as rings, bracelets, necklaces, and watches when working with a battery. A battery can produce a short-circuit current that is high enough to cause a severe burn.

8. NEVER charge a frozen battery.

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10. CHARGER OPERATION

WARNING: TO REDUCE THE RISK OF AN ELECTRIC SHOCK, CONNECT ONLY TO A SINGLE-PHASE,

PROPERLY GROUNDED (3-WIRE) OUTLET. REFER TO GROUNDING INSTRUCTIONS.

CAUTION: MAKE SURE THE BATTERY IS A RECHARGEABLE DEEP-CYCLE BATTERY WITH THE

PROPER RATED VOLTAGE FOR THIS CHARGER.

DANGER: TO PREVENT ELECTRICAL SHOCK, DO NOT TOUCH UNINSULATED PARTS OF THE

CHARGER DC OUTPUT CONNECTOR, BATTERY CONNECTOR, OR BATTERY TERMINALS. MAKE SURE

ALL ELECTRICAL CONNECTORS ARE IN GOOD WORKING CONDITION. DO NOT USE CONNECTORS

THAT ARE CRACKED, CORRODED, OR DO NOT MAKE ADEQUATE ELECTRICAL CONTACT. USE OF A

DAMAGED OR DEFECTIVE CONNECTOR MAY RESULT IN A RISK OF OVERHEATING OR ELECTRIC

SHOCK.

WARNING: CHARGER IS NOT TO BE USED WHILE THE BATTERY POWERED EQUIPMENT IS

OPERATING.

ATTENTION: Ne pas utiliser le charger pendant que I'equipment est en marche.

WARNING: LEAD-ACID BATTERIES GENERATE GASES WHICH CAN BE EXPLOSIVE. TO PREVENT

ARCING OR BURNING NEAR BATTERIES, DO NOT DISCONNECT THE CHARGER DC OUTPUT FROM THE

BATTERIES WHILE THE CHARGER IS OPERATING. IF THE CHARGE CYCLE MUST BE INTERRUPTED,

PRESS THE STOP/START BUTTON TO TERMINATE THE CHARGE CYCLE BEFORE DISCONNECTING

THE CHARGER DC OUTPUT FROM THE BATTERIES. KEEP SPARKS, FLAME, AND SMOKING

MATERIALS AWAY FROM BATTERIES.

WARNING: ALWAYS SHIELD EYES WHEN WORKING NEAR BATTERIES. DO NOT PUT WRENCHES

OR OTHER METAL OBJECTS ACROSS BATTERY TERMINALS OR THE BATTERY TOP. ARCING OR

EXPLOSION OF THE BATTERY CAN RESULT!

WARNING: DO NOT DISCONNECT THE CHARGER DC OUTPUT PLUG FROM THE BATTERY

RECEPTACLE WHILE A CHARGE CYCLE IS IN PROGRESS. THE RESULTING ARCING AND BURNING OF

THE PLUG AND RECEPTACLE COULD CAUSE THE BATTERIES TO EXPLODE. IF THE CHARGER MUST

BE STOPPED WHEN A CHARGE CYCLE IS IN PROGRESS, FIRST PRESS THE STOP/START BUTTON ON

THE USER INTERFACE, THEN DISCONNECT THE CHARGER DC OUTPUT PLUG FROM THE BATTERY

RECEPTACLE.

CAUTION: TO AVOID DAMAGE TO THE CHARGER DC CABLE AND CONNECTOR AND BATTERY

CONNECTOR, DISCONNECT BY GRASPING THE CHARGER CONNECTOR HANDLE OR BODY AND

PULLING IT STRAIGHT OUT OF THE BATTERY CONNECTOR. DO NOT PULL ON THE CHARGER CABLE.

DO NOT TWIST, ROCK, OR PULL THE CONNECTOR SIDEWAYS.

The instructions printed on the charger are for daily reference.

Off-Board Charger Operation:

1. With the charger DC output connector disconnected from the battery pack, connect the AC input plug to a single-phase, 120V, 60 Hz AC outlet/receptacle (if not already connected).

X-Series 12 of 20 User’s Manual

2. Connect the charger DC output connector to the battery pack connector by firmly grasping both connectors and plugging them straight together. The charger will start automatically, which is indicated by the blinking

Charge Status LED on the user interface (on for approximately 1 second followed by off for approximately 1 second). If the charger does not automatically start because the battery is overly discharged, the Low

Voltage Start button on the user interface can be used to manually start a charge cycle. See Section 9.2 for details.

3. If the charger must be disconnected from a battery pack while a charge cycle is in progress, press the

Stop/Start button on the user interface to stop the charge cycle before disconnecting the DC output connector from the battery pack. Do not disconnect the DC output connector from a battery pack while a charge cycle is in progress. The resulting arcing and burning of the connectors could cause the battery to explode.

4. Monitor the ammeter on the charger user interface for the correct charge current. The initial charge current could vary several amps from the start current listed in the specifications, depending on both the condition of the battery pack and its depth of discharge.

5. The charger automatically terminates the charge cycle when the battery pack reaches full charge. The necessary charge time is affected by numerous factors. The major factors affecting the required charge time are the amp-hour capacity, depth of discharge, temperature, and age/usage of the battery pack. Completion of the charge cycle is indicated by [1] the solid illumination of the Charge Status LED on the user interface or

[2], if the charger is configured for a post-charge mode, the Charge Status LED displaying a repeating pattern of long on (approximately 4 seconds) followed by short off (approximately 1 second).

6. If the charger is in a post-charge mode, press the Stop/Start button on the charger user interface to terminate the post-charge mode, which is indicated by the solid illumination of the Charge Status LED.

7. Disconnect the charger DC output connector from the battery pack connector by grasping both connectors and pulling them straight apart.

8. If the charger DC output connector remains connected to the battery pack connector after the charger automatically terminates the charge cycle and the charger has AC power available, it will enter a storage mode where it periodically performs a maintenance charge cycle. (Storage mode is a feature of specific charge/battery profiles. Contact your dealer to determine if your charger includes a storage mode.)

On-Board Charger Operation:

1. With the charger AC input plug disconnected from the AC outlet/receptacle, connect the DC output connector to the battery pack (if not already connected).

2. Connect the charger AC input plug to a single-phase, 120V, 60 Hz AC outlet. The charger will start automatically, which is indicated by the blinking Charge Status LED on the user interface (on for approximately 1 second followed by off for approximately 1 second). If the charger does not automatically start because the battery pack is overly discharged, the Low Voltage Start button on the user interface can be used to manually start a charge cycle. See Section 10.2 for details.

3. If the charge cycle must be terminated early, press the Stop/Start button on the charger user interface.

[2], if the charger is configured for a post-charge mode, the Charge Status LED displaying a repeating pattern of long on (approximately 4 seconds) followed by short off (approximately 1 second).

X-Series 13 of 20 User’s Manual

7. Disconnect the charger AC input plug from the outlet.

10.1 User Interface

The user interface (Figure 10.1-1) includes an ammeter for monitoring the DC output current of the charger.

Additionally, the user interface includes 3 buttons and 2 LEDs (light emitting diodes). Figure 10.1-2 and

Figure 10.1-3 describe the LED and button functions, respectively. The user interface also includes an AC input circuit breaker and DC output fuse.

Figure 10.1-1: X-Series User Interface

Button Description

Stop/Start

Stops a charge cycle or post-charge mode that is in progress. Starts a new charge cycle if pressed when one is not in progress.

Low Voltage

Start

Manually starts a charge cycle for a battery with a voltage too low to automatically start. See Section 9.2 for details.

Self Diagnostic Initiates a self diagnostic test of the charger. See Section 9.3 for details.

Figure 10.1-2: User Interface Buttons

LED Description

1. Blinks during a charge cycle (on for approximately 1 second followed by off for approximately 1 second).

2. Lights solid when a charge cycle completes.

3. If the charger is configured for a post-charge mode, displays a repeating

Charge Status pattern of long on (approximately 4 seconds) followed by short off

(approximately 1 second) during post-charge mode.

4. Used, in conjunction with the Self Diagnostic LED, to indicate the result of a self diagnostic test or a charge cycle fault.

Self Diagnostic

Used, in conjunction with the Charge Status LED, to indicate the result of a self diagnostic test or a charge cycle fault. See Section 9.3 for details.

Figure 10.1-3: User Interface LEDs

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10.2 Low Voltage Start

The Low Voltage Start button manually starts a charge cycle for a battery with a voltage too low to automatically start (as low as 1V). You should press and hold the button for 5 to 10 seconds. If the battery voltage is 1V or above, the Charge Status LED will begin blinking while you are holding the button. If the

Charge Status LED stops blinking after you release the Low Voltage Start button, repeat pressing and holding the button for another 5 to 10 seconds.

10.3 Self Diagnostic and Faults

The Self Diagnostic button should be used when you suspected that the charger is not functioning properly.

Pressing this button initiates a self diagnostic test. A properly-sized battery that is not overly discharged must be connected to the charger for the self diagnostic test to execute. The Self Diagnostic and Charge

Status LEDs indicate the result of the self diagnostic. Figure 9.3-1 lists the possible combinations of LED states and the respective self diagnostic results that they indicate. The self diagnostic results are explained below. If a fault occurs while the charger is in use, the same results will be indicated using the Self

Diagnostic and Charge Status LEDs. In the event that the self diagnostic returns a result other than “Self

Diagnostic Passed”, contact a qualified service technician, and provide them with the self diagnostic result.

“Self Diagnostic” LED

State

Off

“Charging” LED

State

Off

Self Diagnostic

Result

Self Diagnostic Passed

Solid Off / Dim Control Board

Figure 9.3-1: Self Diagnostic Results

Self Diagnostic Passed

The self diagnostic test was successful, and no issues were identified with the charger.

Battery Voltage

The DC battery voltage is too low (low-battery condition or incorrectly-sized battery) or too high (incorrectlysized battery). Connect a battery that is not overly discharged with a cell count (CELLS) and DC voltage

(DC VOLTS) equal to those listed on the charger ratings label to the charger, and press the Self Diagnostic button again.

-OR-

A timer fault has occurred. For example, the maximum charge cycle timer has expired or the maximum allowable amp-hours returned has been reached. Ensure that a battery in good working condition with an amp-hours rating (AMP-HRS) within the range listed on the charger ratings label is connected to the charger.

Control Board

The control board is not functioning properly.

Current Sense

The current sense is not functioning properly.

AC Input

An AC input issue exists. Ensure that the charger AC power cord is connected to a single-phase, 120V, 60

Hz outlet that is properly powered. Ensure that the charger AC circuit breaker on the user interface has not tripped. If it has, press to reset it. Otherwise, the charger is not functioning properly.

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DC Output

A DC output issue exists. Ensure that the charger DC fuse on the user interface is not blown. Otherwise, the charger is not functioning properly. It is possible that the charger is still able to charge, but with reduced current.

Jumper Missing

The internal charge profile jumper is missing. See Section 4 for details.

11. LOCKOUT/INTERLOCK RELAY OPTION

On-board X-Series chargers can be ordered with an optional internal relay that can be used to provide lockout/interlock functionality. The two (2) exposed terminals of the dry-contact relay are CONNECTED when AC power is NOT PRESENT at the charger, and the terminals are DISCONNECTED when AC power IS PRESENT at the charger. The relay is rated for up to 10 amps.

12. MAINTENANCE

WARNING: DISCONNECT BOTH AC AND DC POWER FROM THE CHARGER BEFORE PERFORMING

ANY MAINTENANCE. CONTACT WITH LIVE COMPONENTS WITHIN THE CHARGER COULD CAUSE

ELECTRICAL SHOCK, SERIOUS INJURY, OR DEATH.

CAUTION: KEEP CHARGER CLEAN AND DRY, INSIDE AND OUT. FAILURE TO DO SO MAY CAUSE

DAMAGE OR FAILURE OF CHARGER.

The charger requires minimal maintenance. It should be kept clean. Twice a year, or as often as the cleanliness of the area may dictate, the interior of the charger should be thoroughly blown clean with dry compressed air.

The components of the charger are cooled by natural convection. If dust and debris are allowed to build up, they will restrict airflow and could cause components to overheat.

Always be careful not to bump wiring or components. This could cause loose connections and failures.

Moisture may cause electrical shorting and/or corrosion. It may also combine with dust and debris making them more difficult to remove. Do not use liquids to clean the charger. Liquids could cause damage. Compressed air should be used to clean dust and debris from the charger and its components.

12.1 Check Charger Area

The area around the charger must remain clean, cool, dry, and well ventilated. Check for obstructions to airflow, clearances, or other violations of the requirements in Section 5.

12.2 Visual Inspections

Check the charger for any physical failures, such as loose contacts or hardware, excess wear, or damage.

Darkened or hot terminals should be tightened or replaced.

12.3 Battery Conditions

CAUTION: CHECK THE DC CONNECTIONS FROM THE CHARGER TO THE BATTERY AND MAKE

SURE THEY ARE TIGHT AND CLEAN. TIGHTEN AND/OR CLEAN IF NEEDED. FAILURE TO DO SO

COULD CAUSE MALFUNCTION, FIRE, OR EXPLOSION.

Batteries must be well maintained for the charging system to operate properly. Follow battery manufacturer instructions for battery maintenance. Check for loose connections or corrosion.

DC connections may become corroded over time. If the connections become corroded, they should be cleaned as recommended by the battery manufacturer. After the connections have been cleaned, a battery connection treatment should be applied to help prevent corrosion from reoccurring. Contact the battery manufacturer for their recommendations.

Periodic cleaning and watering of non-sealed batteries is very important. Logging the water usage of nonsealed batteries is useful. As a battery ages, it will use more water.

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13. TROUBLESHOOTING AND SERVICE

CAUTION: DO NOT DISASSEMBLE THE CHARGER. TAKE IT TO A QUALIFIED SERVICE TECHNICIAN

WHEN SERVICE OR REPAIR IS REQUIRED. INCORRECT REASSEMBLY MAY RESULT IN A RISK OF

ELECTRIC SHOCK OR FIRE.

DANGER: TO REDUCE THE RISK OF ELECTRIC SHOCK, ALWAYS DISCONNECT BOTH THE POWER

SUPPLY CORD AND THE OUTPUT CORD BEFORE ATTEMPTING ANY MAINTENANCE OR SERVICE.

WARNING: DO NOT OPERATE THE CHARGER IF IT IS MALFUNCTIONING. PERSONAL INJURY OR

PROPERTY DAMAGE COULD RESULT.

The charger was fully tested and calibrated before leaving the factory. It was delivered ready to charge. If properly installed, the charger should require very little attention. If improper charger operation occurs, it will require repair by a qualified service technician.

# Service Part Description

2 Relay Board Assembly

26900

12V 25A

SERVICE PARTS LIST

27020

12V 50A

27010

24V 25A

27030

24V 35A

27060

36V 25A

27050

36V 30A

27000

48V 17A

08776S 08799S 08776S 08774S 08776S 08774S 08776S

27105-01S 27105-01S 27105-02S 27105-02S 27105-03S 27105-03S 27105-04S

37204S 37819S 37204S 37082S 37204S 37082S 37204S

35363S 31847S 31847S 34882S 34882S 34882S 34882S

16369S 20726S 16369S 16823S 16369S 16823S 16895S

Misc Switch Kit

(Stop/Start, Low

Voltage, Self Diagnostic)

37446S 37446S 37446S 37446S 37446S 37446S 37446S

21307-08S 21307-08S 21307-08S 21307-08S 21307-08S 21307-08S 21307-08S

Contact Your Sales Representative 9 DC Cordset Kit

N/A

Misc Wiring Kit

(LEDs, Control Cables,

Misc Wires)

N/A

Optional Lockout Relay

Kit

37441S 37442S 37441S 37441S 37441S 37441S 37441S

37676S 37676S 37676S 37676S 37676S 37676S 37676S

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WIRING DIAGRAMS

X-Series 18 of 20

MODEL #27020 ONLY

User’s Manual

LIMITED WARRANTY

Lester Electrical warrants each new Lester Battery Charger for defects in material and workmanship for a period of two (2) years from the date of manufacture of the complete unit. Repairs can be made at the Lester factory. To do so, first obtain a

"Return Material Authorization" number by calling the Service Department of Lester Electrical (402 477-8988) or by e-mailing [email protected]

and send the defective unit with transportation charges prepaid to:

Lester Electrical

625 West A Street

Lincoln, NE 68522-1794 USA

Attention: Service Department

RMA #

For repairs made at other than the Lester factory, Lester will provide only the replacement parts. Defective parts should be sent with transportation charges prepaid to the Lester factory at the address noted above.

If the unit or parts are found in the reasonable judgment of Lester to be defective in material or workmanship, repair or replacement will be made by Lester without charge for parts or labor. Repair or replacement will be at the discretion of Lester, with replacements being made using current models or parts performing the equivalent function. Labor charges other than those incurred at the Lester factory are not covered under this warranty. All expenses associated with delivering defective items to the Lester factory and the expense of returning repaired or replaced items from the Lester factory to the owner will be paid for by the owner. All warranty work accomplished at the Lester factory will be completed with a reasonable time after receipt of defective items.

This warranty does not cover any semiconductor parts, such as diodes, which are vulnerable to electrical overloads beyond the control of Lester. Warranty on parts not manufactured by Lester, which include, but are not limited to, timers and ammeters, is limited to the period specified in the original manufacturer's warranty.

This warranty does not cover any charger that has been subject to misuse, neglect, negligence, or accident, or operated in any way contrary to instructions specified on the charger case and in the owner's manual. No claim of breach of warranty shall be cause for cancellation of the contract of sale of any Lester charger. Lester assumes no responsibility for loss of time, inconvenience, or other damage, consequential or otherwise, resulting from a defective charger. All implied warranties

(including merchantability) are limited in duration to the two years from date of manufacture warranty period.

Some states do not allow the exclusion or limitation of incidental or consequential damages; or limitations on how long an implied warranty lasts, so the above limitations may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

Lester's obligation under this warranty is strictly and exclusively limited to the repair or replacement of defective items.

Lester issues this warranty in good faith and with full confidence in the workmanship and quality of Lester products.

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Represented By:

*37414*

X-Series 20 of 20

37414H

User’s Manual