MASTER FORCE 125A Automatic Battery Charger and Engine Starter User Manual

125A Automatic Battery Charger
& Engine Starter

OPERATION’S MANUAL

CAUTION : To Reduce The Risk Of Injury, User Must Read And Understand Operator’s Manual. Save These Instructions For Future Reference.

SAFETY SYMBOLS

Some of the following symbols may be used on your charger. Please study them and learn their meaning. Proper interpretation of these symbols will allow better and safer operation of the charger.

understand the operator’s manual
| Wear safety glasses| Operation of the charger can result in damage to unprotected eyes
| Warning symbol| Alerts user to warning message
| Electric shock symbol| Connect only to properly grounded outlets. Replace defective cords or
wire immediately.
| Explosive gas symbol| Risk of explosive gases during normal operation of a lead-acid battery

This symbol designates that this charger is listed by Underwriters Laboratories

SAFETY INFORMATION

The purpose of safety symbols is to attract our attention to possible dangers. The safety symbols, and the explanations with them, deserve your careful attention and understanding. The symbol warnings do not by themselves eliminate any danger. The instructions and warnings they give are no substitutes for proper accident pre-  prevention measures.
WARNING: Be sure to read and understand all safety instructions in this manual, including all safety alert symbols, such as “DANGER”, “WARNING” and “CAUTION” before using this battery charger. Failure to follow all instructions listed below may result in electric shock, fire and/or serious personal injury.

SYMBOL MEANING
SAFETY ALERT SYMBOL: Indicates DANGER, WARNING or CAUTION. May be used in conjunction with other symbols or pictographs.
DANGER Failure to obey this safety warning WILL result in death or serious injury to yourself or to others. Always follow safety precautions to reduce the risk of fire, electric shock, and personal injury.
WARNING Failure to obey this safety warning CAN result in death or serious injury to yourself or to others. Always follow safety precautions to reduce the risk of fire,  electric shock, and personal injury.
CAUTION Failure to obey this safety warning MAY result in personal injury to yourself or others, or property damage. Always follow safety precautions to reduce the risk of fire, electric shock, and personal injury.

IMPORTANT SAFETY INSTRUCTIONS

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

2. Do not expose the charger to rain or snow.

3. Use of an attachment not recommended or sold by the battery charger manufacturer may result in a risk of fire, electric shock or injury to persons.

4. To reduce the risk of damage to the electric plug and cord, pull by the plug rather than the cord when disconnecting the charger.

5. An extension cord should not be used unless absolutely necessary. Use of improper extension cord could result in a risk of fire and electric shock. If an extension cord must be used, make sure:
   • The pins on plug of the extension cord are the same number, size and shape as those of the plug-on charger.
   • The extension cord is properly wired and in good electrical condition.
   • The wire size is large enough for the AC ampere rating of charger as specified in section 8.

6. Do not operate charger with a damaged cord or plug – replace the cord or plug immediately.

7. Do not operate charger if it has received a sharp blow, been dropped, or otherwise damaged in any way; take it to a qualified serviceman.

8. Do not disassemble the charger; take it to a qualified serviceman when service or repair is required. Incorrect reassembly may result in a risk of electric shock or fire.

9. To reduce risk of electric shock, unplug the charger from outlet before attempting any maintenance or cleaning. Turning off controls will not reduce this risk.

10. WARNING
    RISK OF EXPLOSIVE GASES.
    a. WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS. BATTERIES GENERATE EXPLOSIVE GASES  DURING NORMAL BATTERY OPERATION. FOR THIS REASON, IT IS OF UTMOST IMPORTANCE THAT YOU FOLLOW THE INSTRUCTIONS EACH TIME  YOU USE THE CHARGER.
    b. To reduce risk of battery explosion, follow these instructions and those published by the battery manufacturer and manufacturer of any equipment you intend to use in the vicinity of the battery. Review cautionary markings on these products and on the engine.

11. Keep out of reach of children.

PERSONAL SAFETY PRECAUTIONS

1. Consider having someone close enough by to come to your aid when you work near a lead-acid battery.
2. Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing, or eyes.
3. Wear complete eye protection and clothing protection. Avoid touching eyes while working near the battery.
4. If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters eye, immediately flood eye with running cold water for at least 10 minutes and get medical attention immediately.
5. NEVER smoke or allow a spark or flame in the vicinity of the battery or engine.
6. Be extra cautious, to reduce risk of dropping a metal tool onto the battery. It might spark or short-circuit battery or another electrical part that may cause an explosion.
7. Remove personal metal items such as rings, bracelets, necklaces, and watches when working with a lead-acid battery. A lead-acid battery can produce a short-circuit current high enough to weld a ring or the like to metal, causing a severe burn.
8. Use the charger for charging only 6V and 12V LEAD-ACID (STD, GEL or AGM) rechargeable batteries. It is not intended to supply power to a low voltage electrical system other than in a starter-motor application. Do not use battery charger for charging dry-cell batteries that are commonly used with home appliances. These batteries may burst and cause injury to persons and damage to property.
9. NEVER charge a frozen battery.

PREPARING TO CHARGE

1. If necessary to remove the battery from the vehicle to charge, always remove the grounded terminal from the battery first. Make sure all accessories in the vehicle are off, so as not to cause an arc.

2. Be sure area around the battery is well ventilated while the battery is being charged.

3. Clean battery terminals. Be careful to keep corrosion from coming in contact with eyes.

4. Add distilled water in each cell until battery acid reaches the level specified by the battery manufacturer. Do not overfill.
   For a battery without removable cell caps, such as valve-regulated lead-acid batteries, carefully follow the manufacturer’s recharging instructions.

5. Study all battery manufacturer’s specific precautions while charging and recommended rates of charge.

6. Determine voltage of battery by referring to car owner’s manual and make sure that output voltage selector switch is set at the correct voltage. If the charger has an adjustable charge rate, charge battery initially at the lowest rate.

CHARGER LOCATION

1. Locate charger as far away from battery as DC cables permit.
2. Never place charger directly above battery being charged; gases from the battery will corrode and damage the charger.
3. Never allow battery acid to drip on the charger when reading electrolyte specific gravity or filling battery.
4. Do not operate chargers in a closed-in area or restrict ventilation in any way.
5. Do not set a battery on top of the charger.

DC CONNECTION PRECAUTIONS

5.1 Connect and disconnect DC output clips only after setting any charger switches to “off” position and removing AC cord from the electric outlet. Never allow clips to touch  each other.
5.2 Attach clips to battery and chassis, as indicated in sections 6 and 7.

FOLLOW THESE STEPS WHEN THE BATTERY IS INSTALLED IN THE VEHICLE

WARNING
A SPARK NEAR THE BATTERY MAY CAUSE A BATTERY EXPLOSION. TO REDUCE THE RISK OF A SPARK NEAR THE BATTERY:

1. Position AC and DC cords to reduce risk of damage by hood, door, or moving engine part.

2. Stay clear of fan blades, belts, pulleys, and other parts that can cause injury to persons.

3. Check the polarity of battery posts. POSITIVE (POS, P, +) battery post usually has a larger diameter than NEGATIVE (NEG, N,–) post.

4. Determine which post of battery is grounded (connected) to the chassis. If negative post is grounded to chassis (as in most vehicles), see (6.5). If a positive post is grounded to the chassis, see (6.6).

5. For a negative-grounded vehicle, connect POSITIVE (RED) clip from battery charger to POSITIVE (POS, P, +) ungrounded post of the battery.
   Connect NEGATIVE (BLACK) clip to vehicle chassis or engine block away from the battery. Do not connect clip to carburetor, fuel lines, or sheet-metal body parts. Connect to a  heavy gauge metal part of the frame or engine block.

6. For a positive-grounded vehicle, connect the NEGATIVE (BLACK) clip from battery charger to the NEGATIVE (NEG, N, –) ungrounded post of the battery. Connect POSITIVE (RED) clip to vehicle chassis or engine block away from the battery. Do not connect the clip to carburetor, fuel lines, or sheet-metal body parts. Connect to a heavy gauge metal part of  the frame or engine block.

7. When disconnecting the charger, turn switch to off, disconnect AC cord, remove clip from the vehicle chassis, and then remove the clip from the battery terminal.

8. See Operating  Instructions for the length of charge information.

FOLLOW THESE STEPS WHEN THE BATTERY IS OUTSIDE THE VEHICLE

WARNING:
A SPARK NEAR THE BATTERY MAY CAUSE A BATTERY EXPLOSION. TO REDUCE THE RISK OF A SPARK NEAR THE BATTERY:

1. Check the polarity of battery posts. POSITIVE (POS, P, +) battery post usually has a larger diameter than NEGATIVE (NEG, N, –) post.

2. Attach at least a 24-inch-long 6- gauge (AWG) insulated battery cable to NEGATIVE (NEG, N, –) battery post.

3. Connect POSITIVE (RED) charger clip to POSITIVE (POS, P, +) post of the battery.

4. Position yourself and free end of the cable as far away from the battery as possible – then connect the NEGATIVE (BLACK) charger clip to the free end of the cable.

5. Do not face battery when making the final connection. 7.6 When disconnecting charger, always do so in the reverse sequence of connecting procedure and break the first connection
   while as far away from battery as practical.

6. A marine (boat) battery must be removed and charged onshore. To charge it on board requires equipment specially designed for marine use.

GROUNDING AND AC POWER CORD CONNECTIONS

1. This battery charger is for use on a nominal 120-volt circuit and has a grounded plug. The charger must be grounded, to reduce the risk of electric shock. The plug must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances. The plug pins must fit the receptacle (outlet). Do not use with an ungrounded system.

2. DANGER: Never alter the AC cord or plug provided – if it does not fit the outlet, have a properly grounded outlet installed by a qualified electrician. An improper connection can result  in a risk of an electric shock or electrocution.
   NOTE: Pursuant to Canadian Regulations, use of an adapter plug is not allowedin Canada. Use of an adapter plug in the United  tates is not recommended and should not be used.

3. USING AN EXTENSION CORD
   The use of an extension cord is not recommended. If you must use an extension cord, follow these guidelines:

• Pins on the plug of the extension cord must be the same number, size, and shape as those of the plug-on charger.
• Ensure that the extension cord is properly wired and in good electrical condition.
• Wire size must be large enough for the AC ampere rating of charger, as specified:

*AWG-American Wire Gauge

ASSEMBLY INSTRUCTIONS

1.  Remove all cord wraps and uncoil the cables prior to using the battery charger.

CONTROL PANEL

DIGITAL DISPLAY
The digital display indicates the status of the battery and charger. See the Display Messages section for a complete list of messages.
NOTE: During charging, the display will go into sleep mode and will not show the percentage of charge or voltage of the battery. To turn the display back on, press the Display button.
DISPLAY MODE BUTTON
Use this button to set the function of the digital display to one of the following:

• Battery % – The digital display shows an estimated charge percentage of the battery connected to the charger’s battery clamps.
• Alternator % – The digital display shows an estimated output percentage of the vehicle’s charging system connected to the charger’s battery clamps, compared to a properly functioning system. The alternator percent range is from 0 to 100%. Readings below 0 (13.2 volts) will read LOW and readings above 100% (14.6 volts) will read  HIGH. If you get a HIGH or LOW reading, have the electrical system checked by a qualified technician.
• Voltage – The Digital Display shows the voltage at the charger battery clamps, in DC volts, prior to charging. During charging, it shows the auto-detected battery charge voltage.

RATE SELECTION BUTTON
Use this button to select one of the following:

• 6A<>2A CHARGE/MAINTAIN – For charging small and large batteries. Not recommended for industrial applications.
•  40<>15A BOOST – For quickly adding energy to a severely discharged or large capacity battery prior to Engine Start. The unit will automatically switch to 6A<>2A Charge/Maintain after the Boost operation has been completed.
• 125A ENGINE START – Provides additional amps for cranking an engine with a weak or run-down battery. Always use in combination with a battery.

NOTE : Once the charger has started charging the battery, if you press the Rate Selection button once, the output current is shut off and the display show OFF and then the battery voltage.  If you press the Rate Selection button again, the current will go back on at the same setting it was when it was turned off.

LED INDICATORS
CLAMPS REVERSED ( red) LED flashing: The connections are reversed.
CHARGING (yellow/orange) LED lit: The charger is charging the battery.
CHARGING (yellow/orange) LED flashing: The charger is in abort mode.
CHARGED/MAINTAINING (green) LED pulsing: The battery is fully charged and the charger is in maintenance mode.
NOTE: See the Operating Instructions section for a complete description of the charger modes.

BATTERY TYPE BUTTON
Use this button to set the type of battery.

• STANDARD – Used in cars, trucks, and motorcycles, these batteries have vent caps and are often marked “low maintenance” or “maintenance-free”. This type of battery is designed to deliver quick bursts of energy (such as starting engines) and has a greater plate count. The plates are thinner and have somewhat different material compositions. Standard batteries should not be used for deep-cycle applications.

• AGM – The Absorbed Glass Mat construction allows the electrolyte to be suspended in close proximity with the plate’s active material. In theory, this enhances both the discharge and recharge efficiency. The AGM batteries are a variant of Sealed VRLA (valve-regulated lead-acid) batteries. Popular uses include high-performance engine
  starting, power sports, deep-cycle, solar and storage batteries.

• GEL – The electrolyte in a GEL cell has a silica additive that causes it to set up or stiffen. The recharge voltages on this type of cell are lower than those for other styles of lead-acid battery. This is probably the most sensitive cell in terms of adverse reactions to over-voltage charging. Gel batteries are best used in VERY DEEP cycle applications and may last a bit longer in hot weather applications. If the wrong battery charger is used on a gel cell battery, poor performance and premature failure will result.

OPERATING INSTRUCTIONS

WARNING
A SPARK NEAR THE BATTERY MAY CAUSE AN EXPLOSION.
IMPORTANT: Do not start the vehicle with the charger connected to the AC outlet, or it could damage the charger.
NOTE: This charger is equipped with an auto-start feature. Current will not be supplied to the battery clamps until a battery is properly connected. The clamps will not spark if touched together.

CHARGING A BATTERY IN THE VEHICLE

1. Turn off all the vehicle’s accessories.
2. Keep the hood open.
3. Clean the battery terminals.
4. Place the charger on a dry, non-flammable surface.
5. Lay the AC/DC cables away from any fan blades, belts, pulleys and other moving parts.
6. Connect the battery, following the precautions listed in sections 6 and  7.
7. Connect the charger to an electrical outlet.
8. Select the battery type and the desired rate. Charging will then begin automatically. See section 12 for CHARGING message details.
9.  The yellow/orange LED will light, and the display will show ANALYZING BATTERY while the charger determines that the battery is properly connected and the condition of the battery.
10. When charging is complete, disconnect the charger from the AC power, remove the clamps from the vehicle’s chassis, and then remove the clamp from the battery terminal.

CHARGING A BATTERY OUTSIDE OF THE VEHICLE

1.  Place the battery in a well-ventilated area.
2. Clean the battery terminals.
3. Connect the battery, following the precautions listed in sections 6 and 7.
4. Connect the charger to the electrical outlet.
5. Select the battery type and the desired rate. Charging will then begin automatically. See section 12 for CHARGING message details.
6. The yellow/orange LED will light, and the display will show ANALYZING BATTERY while the charger determines that the battery is properly connected and the condition of the battery.
7. When charging is complete, disconnect the charger from the AC power, disconnect the negative clamp, and finally the positive clamp.
8. A marine (boat) battery must be removed and charged onshore.

AUTOMATIC CHARGING MODE
When an Automatic Charge is performed, the charger switches to the maintenance mode automatically after the battery is charged.
BATTERY CONNECTION INDICATOR
If the charger does not detect a properly connected battery, charging will not start and the digital display will show one of two messages. If the display shows CONNECT CLAMPS, make sure the charger is connected to the battery and the connection points are clean and making a good connection. If the display shows WARNING CLAMPS  REVERSED, unplug the charger from the AC outlet and reverse the connections at the battery.
BATTERY CHARGING TIMES

Times are based on a 50% discharged battery and may change, depending on age and condition of the battery.
CHARGE COMPLETION AND MAINTAIN MODE (FLOAT MODE MONITORING)
Charge completion is indicated by the pulsing green LED and the digital display showing FULLY CHARGED AUTO MAINTAINING. This means that the charger has stopped charging and has switched to the Maintain Mode of operation.
NOTE: If the charger has to provide its maximum maintain current for a continuous 12 hour period, it will go into Abort Mode (see Aborted Charge section). This is usually caused by a drain on the battery, or the battery could be bad. Make sure there are no loads on the battery. If there are, remove them. If there are none, have the battery checked or replaced.

MAINTAINING A BATTERY
The 260-9513 maintains 6 and 12-volt batteries, keeping them at full charge. It is not recommended for industrial applications.

NOTE: The maintain mode technology allows you to safely charge and maintain a healthy battery for extended periods of time. However, problems with the battery, electrical problems in the vehicle, improper connections or other unanticipated conditions could cause excessive current draws. As such, occasionally monitoring your battery and the charging process is required.
DESULFATION MODE
If the battery is left discharged for an extended period of time, it could become sulfated and not accept a normal charge. If the charger detects a sulfated battery, the charger will switch to a special mode of operation designed for such batteries. If successful, normal charging will resume after the battery is desulfated. Desulfation could take up to 8 hours.  If desulfation fails, charging will abort, the yellow/orange LED will flash, and the display will show CHARGING ABORTED BAD BATTERY.
ABORTED CHARGE
If charging cannot be completed normally, charging will abort. When charging aborts, the charger’s output is shut off, the yellow/orange LED will flash, and the display will show CHARGING ABORTED BAD BATTERY. To reset after an aborted charge, unplug the charger from the outlet, wait a few moments, and plug it back in.
USING THE ENGINE START SETTING
Your battery charger can be used to jump-start your car if the battery is low. Follow all safety instructions and precautions for charging your battery. Wear complete eye protection and protective clothing.

WARNING Using the Engine Start setting WITHOUT a battery installed in the vehicle could cause damage to the vehicle’s electrical system.
NOTE: If you have charged the battery and it still will not start your car, do not use the Engine Start setting, or it could damage the vehicle’s electrical system. Has the battery been checked?

1. With the charger unplugged from the AC outlet, connect the charger to the battery, following the instructions given in sections 6 and 7.

2.  With the charger plugged in and connected to the battery and chassis, press the Rate Selection button until the Engine Start LED is lit.

3. When the display shows ENGINE  START READY, crank the engine until it starts or 3 seconds pass. If the engine does not start, wait 3 minutes (until the display shows  ENGINE START READY) before cranking again. This allows the charger and battery to cool down.
   NOTE: During extremely cold weather, or if the battery is under 2 volts, charge the battery for 5 minutes before cranking the engine.

4. If the engine fails to start, charge the battery for 5 more minutes before attempting to crank the engine again.

5. After the engine starts, unplug the AC power cord before disconnecting the battery clamps from the vehicle.
   NOTE: If the engine does turn over but never starts, there is not a problem with the starting system; there is a problem somewhere else with the vehicle. STOP cranking the engine until the other problem has been diagnosed and corrected.
   NINE STARTING NOTES

During the starting sequence, the charger is set to one of three states:

• Wait for cranking – The charger waits until the engine is actually being cranked before delivering the amps for engine start. After 5 seconds, the display will change to  ENGINE START READY.
• Cranking – When cranking is detected, the charger will automatically deliver up to its maximum output as required by the starting system for up to 5 seconds or until the engine cranking stops. The digital display shows a countdown of the remaining crank time.
• Cool Down – After cranking, the charger enters a mandatory 3 minute (180 seconds) cool-down state. The digital display will show ENGINE START COOL DOWN  XXX  SECONDS REMAINING. It starts at 180 and counts down to 0. After 3 minutes, the digital display will change to ENGINE START READY.

USING THE BATTERY VOLTAGE TESTER

1. With the charger unplugged from the AC outlet, connect the charger to the battery, following the instructions given in previous sections.
2. Plug the charger’s AC power cord into the AC outlet.
3. Set the ON/OFF switch to Boost/ Charge/Maintain. DO NOT choose a rate with the Rate Selection button.
4. If necessary, press the Battery Type button until the correct type is indicated.
5. Read the voltage on the digital display. Keep in mind that this reading is only a battery voltage reading; a false surface charge may mislead you. Compare the reading to the following chart.

TESTER AND CHARGER
When first turned on, the unit operates only as a tester, not as a charger. Selecting a charge rate activates the battery charger and deactivates the tester. Pressing the Rate  Selection button when the Engine Start LED is lit (except during the 180-second cooldown) will shut off the charger and activate the tester.
POWER-UP IDLE TIME LIMIT

If no button is pressed within 10 minutes after the battery charger is first powered up, the charger will automatically switch from tester to charger if a battery is connected. In  that case, the charger will be set to charge at the 6A<>2A charge rate and Gel battery type.

TESTING AFTER CHARGING

After the unit has been changed from tester to charger (by selecting a charge rate), it remains a charger. To change the battery charger back to a tester, press the Rate Selection button until all charge rate LEDs are off. NOTE: The battery tester is only designed to test batteries. Testing a device with a rapidly changing voltage could yield unexpected or inaccurate results.

USING THE ALTERNATOR PERFORMANCE TESTER

1. With the charger unplugged from the AC outlet, connect the charger to the battery, following the instructions given in previous sections.
2. Plug the charger AC power cord into the AC outlet.
3. Start the vehicle, rev the engine at 2000 rpm for 30 seconds and turn on the vehicle’s headlights or other accessories.
4. Read the voltage on the digital display. If you get a reading between 13.4 volts and 14.6 volts, the alternator is working properly. If the reading is less than 13.4  volts or more than 14.6 volts, have the charging system checked by a qualified technician.

NOTE: Refer to your vehicle owner’s manual for appropriate voltage numbers for your alternator.
FAN OPERATION
It is normal for the fan to start and stop when maintaining a fully charged battery. The fan does not run in Tester Mode.
Keep the area near the charger clear of obstructions, to allow the fan to operate efficiently.
RESTART
If the Charge Mode is changed after charging has started (by pressing the Rate Selection or Battery Type button), the charging process will restart.

DISPLAY MESSAGES

CONNECT CLAMPS (VOLTAGE LED lit) – Plugged into the AC outlet without the clamps connected to a 6 or 12V battery.
WARNING CLAMPS REVERSED (Red REVERSED LED flashing) – Plugged into the AC outlet and the clamps are connected back to a battery.
Scrolls until the condition is corrected.
ANALYZING BATTERY ( Yellow/orange CHARGING LED lit) – Plugged into the AC outlet, connected to a 6 or 12V battery correctly and a charge rate has been selected.
CHARGING 6V – XX% (Yellow/orange CHARGING LED lit) – Plugged into the AC outlet and correctly connected to a discharged 6V battery.
CHARGING 12V – XX% (Yellow/orange CHARGING LED lit) – Plugged into the AC outlet and correctly connected to a discharged 12V battery.
FULLY CHARGED AUTO MAINTAINING (Green CHARGED/MAINTAINING LED solid) – Plugged into the AC outlet and correctly connected to a fully charged 6V  or 12V battery.

CHARGING ABORTED BAD BATTERY
(Yellow/orange CHARGING LED flashing) – Circumstances that could cause an Abort the situation during charging:

• The battery is severely sulfated or has a shorted cell and can’t reach a full charge.
• The battery is too large or there is a bank of batteries and it doesn’t reach full charge within a set time period. Circumstances that could cause an Abort the situation during  maintaining:
• The battery is severely sulfated or has a weak cell and will not hold a charge.
• There is a large draw on the battery and the charger has to supply its maximum maintain current for a 12 hour period to keep the battery at full charge.

ENGINE START READY (Battery Type LED lit) – The charger is ready for engine start. ENGINE START COOL DOWN XXX
SECONDS REMAINING (Battery Type LED lit)– The charger is in a mandatory 3 minute (180 seconds) cool downstate.
BATTERY DISCONNECTED – Charging is complete and clamps have been disconnected.

MAINTENANCE AND CARE

A minimal amount of care can keep your battery charger working properly for years.

• Clean the clamps each time you are finished charging. Wipe off any battery fluid that may have come in contact with the clamps to prevent corrosion.
• Occasionally cleaning the case of the charger with a soft cloth will keep the finish shiny and help prevent corrosion.
• Coil the input and output cords neatly when storing the charger. This will help prevent accidental damage to the cords and charger.
• Store the charger unplugged from the AC power outlet in an upright position.
• Store the clamps on the storage areas provided on the handle. Do not store the clamps clipped together, on or around metal, or clipped to the cables.

TROUBLESHOOTING

PROBLEM| POSSIBLE CAUSE|

SOLUTION

---|---|---
The charger will not turn on when properly connected.| AC outlet is dead.
Poor electrical connection.
Battery is defective.| Check for an open fuse or circuit breaker supplying AC outlet.
Check power cord and extension cord for the loose-fitting plug.
Have the battery been checked?
Three LEDs come on for 2 seconds,  then turn off.| The charger is plugged into an AC outlet.| No problem; this is normal.
Battery clamps do not spark when touched together.| The charger is equipped with an auto-start feature. It will not supply current to the battery clamps until a battery is properly connected.  The clamps will not spark if touched together.| No problem; this is a normal condition.
The battery is connected and the charger is on, but is not charging.| The charger is in tester mode, not charge mode.| Press the Rate Selection button to activate the charge mode and select a charge rate.
No reading on the digital display.| Charger is not plugged in.
No power at the receptacle.
The display is in sleep mode, during charging.| Plug the charger into an AC outlet.
Check for an open fuse or circuit breaker supplying AC  outlet.
Press the Display button to turn the display back on.
Digital Display reads LOW when testing the alternator| The alternator output is 13.2 volts or less.| Have the electrical system checked by a qualified technician.
Digital Display reads HIGH when testing the alternator| The alternator output is 14.6 volts or more.| Have the electrical system checked by a qualified technician?
Yellow/orange Charging LED is solid and the display shows ANALYZING BATTERY.| The charger needs to check the condition of the battery.| The charger has not completed the checking process. This process can last for up to 10 hours.
Yellow/orange CHARGING LED is  flashing and the display shows  HARGE ABORTED BAD BATTERY.| The battery is sulfated.
The battery is too large for the charger.| Reset the charger by briefly unplugging it.
You need a charger with a higher amp rate.
The display shows CONNECT CLAMPS.| The clamps are not making a good connection.| Check for poor connection at battery and frame.
Short or no start cycle when cranking engine.| No power at the receptacle.
AC cord and/or extension cord is loose.
The clamps are not making a good connection.
Failure to wait 3 minutes between cranks.
The battery may be severely discharged.
The battery is drawing more than the engine tartrate.
The charger may be overheated.| Check for an open fuse or circuit breaker supplying AC  outlet.
Check for an open fuse or circuit breaker supplying AC  outlet.
Check power cord and extension cord for the loose-fitting plug.
Check for poor connection at battery and frame.
Wait 3 minutes of rest time before the next crank.
On a severely discharged battery, use the Boost rate for a  few minutes, to assist in cranking.
Crank time varies with the amount of current drawn. If cranking draws more than the engine start rate, crank time may be less than 5 seconds.
The thermal protector may have tripped and needed a little longer to reset. Make sure the charger vents are not blocked. Wait and try again.
The Boost LED is flashing.| The charger was left in Boost mode for an extended period of time.| The Boost LED will flash for 30 minutes, then go off,  and the Charging LED will light, indicating the charger has switched to Charging mode.
The Boost LED shuts off.| Boost mode is completed.| This is normal. The charger will automatically switch to charging mode to fully charge the battery. Or you may press the Rate Selection button and select either the 6A<>2A Charge/Maintain rate or Engine Start.

SPECIFICATIONS

Input Voltage ………………………………..120V AC @ 60Hz, 5.2A max cont.; 21.5A max int.
Output Voltage ………………………………………………………………………………… 6V or 12V DC
Output Current Rating ……………………………………………2A/6A/15A cont., 40A/125A int.,

125A Automatic Battery Charger & Engine Starter
WARRANTY

90-DAY MONEY-BACK GUARANTEE
This MASTERFORCE™ brand battery charger carries our 90-Day Money-Back Guarantee. If you are not completely satisfied with your MASTERFORCE™ brand product for any reason within ninety (90) days from the date of purchase, return the item with your original receipt to any MENARDS ® retail store, and we will provide you a refund –  no questions asked.

3-YEAR LIMITED WARRANTY
This MASTERFORCE™ brand battery charger carries our famous No Hassle3-Year Limited Warranty to the original purchaser. If, during normal use, this MASTERFORCE™ product breaks or fails due to a defect in material or workmanship within three (3) years from the date of original purchase, simply bring the item with the original sales receipt back to your nearest MENARDS ® retail store. At its discretion, MASTERFORCE™ agrees to have the item or any defective part(s)repaired or replaced with the same or similar MASTERFORCE™ product or part free of charge, within the stated warranty period, when returned by the original purchaser with the original sales receipt. Notwithstanding the foregoing, this limited warranty does not cover any damage that has resulted from abuse or misuse ofthe Merchandise. This warranty: (1) excludes expendable parts including but not limited to blades, brushes, belts, bits, light bulbs, and/or batteries; (2) shall be void if this product is used for commercial and/or rental purposes; and (3) does not cover any losses, injuries to persons/property or costs. This warranty does give you specific legal rights and you may have other rights, which vary from state to state. Be careful, battery chargers are dangerous if improperly used or maintained. Seller’s employees are not qualified to advise you on the use of this merchandise. Any oral representation(s) made will not be binding on the seller or its employees. The rights under this limited warranty are to the original purchaser of the merchandise and may not be transferred to any subsequent owner. This limited warranty is in lieu of all warranties, expressed or implied including warranties or merchantability and fitness for a particular purpose. Seller shall not be liable for any special, incidental, or consequential damages. The sole exclusive remedy against the seller will be for the replacement of any defects as provided herein, as long as the seller is willing or able to replace this product or is willing to refund the purchase price as provided above. For insurance purposes, sellers not allowed to demonstrate any of these products for you.
For questions/comments, technical assistance or repair parts— Please call toll-free at: 1-800-621-5485.

SAVE YOUR RECEIPTS
THIS WARRANTY IS VOID WITHOUT THEM

© 2020 Menard, Inc., Eau Claire, WI 54703

Documents / Resources

| MASTER FORCE 125A Automatic Battery Charger and Engine Starter [pdf] User Manual
125A Automatic Battery Charger and Engine Starter, 260-9513, 0099002180-00
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