DIEHARD 200.71225 Battery Charger with Engine Starter Owner’s Manual

: June 17, 2024
: DieHard

DIEHARD 200.71225 Battery Charger with Engine Starter

Product Information

Specifications

Model Number: 200.71225
Charger Type: Microprocessor Controlled, Fully Automatic Operation
Battery Compatibility: 6 and 12-volt batteries
Charging Modes:
- 2-amp Slow Charge
- 12-amp Fast Charge
- 30-amp Rapid Charge
- 80-amp Engine Start
Additional Features: Battery and Alternator Tester

Operating Instructions

Charging Battery In The Vehicle

To charge the battery while it is still in the vehicle, follow these steps:

Connect the charger’s clamps to the battery terminals, ensuring proper polarity.
Select the desired charging mode based on your battery’s needs (2-amp Slow Charge, 12-amp Fast Charge, or 30-amp Rapid Charge).
Start the charging process by pressing the appropriate button or switch.
Monitor the charging progress using the built-in battery per cent and charge time display (refer to “Battery Percent and Charge Time” section).
Once the battery is fully charged, disconnect the charger from the battery terminals.

Charging Battery Removed From The Vehicle

If you need to charge a battery that has been removed from the vehicle, follow these steps:

Place the battery in a safe and well-ventilated area.
Connect the charger’s clamps to the battery terminals, ensuring proper polarity.
Select the desired charging mode based on your battery’s needs (2-amp Slow Charge, 12-amp Fast Charge, or 30-amp Rapid Charge).
Start the charging process by pressing the appropriate button or switch.
Monitor the charging progress using the built-in battery per cent and charge time display (refer to “Battery Percent and Charge Time” section).
Once the battery is fully charged, disconnect the charger from the battery terminals.

Using Engine Start

If you need to jump-start your vehicle’s engine using the charger, follow these steps:

Connect the charger’s clamps to the appropriate vehicle battery terminals, ensuring proper polarity.
Select the 80-amp Engine Start mode.
Start the engine using the charger’s engine start feature.
Monitor the process and, once the engine starts, disconnect the charger from the battery terminals.

Using Your Battery Charger

Make sure to follow these general steps when using your battery charger:

Connect the charger to a power source using the provided power cord.
Choose the appropriate charging mode based on your battery’s needs.
Start the charging process by pressing the appropriate button or switch.
Monitor the charging progress using the built-in battery per cent and charge time display (refer to the “Battery Percent and Charge Time” section).
Once the battery is fully charged, disconnect the charger from the power source and battery terminals.

FAQ

Q: What is the warranty for this product?
A: The warranty information can be found in the manual or by contacting Sears, Roebuck and Co.
Q: How do I use the built-in battery tester?
A: Instructions for using the built-in battery tester can be found in the “Using the Built-in Battery Tester” section of the manual.
Q: How do I use the built-in alternator tester?
A: Instructions for using the built-in alternator tester can be found in the “Using the Built-in Alternator Tester” section of the manual.
Q: Are there any maintenance requirements for this battery charger?
A: Information regarding maintenance and care can be found in the “Maintenance and Care” section of the manual.
Q: What should I do if I encounter issues with the charger?
A: Troubleshooting steps and solutions can be found in the “Troubleshooting” section of the manual.
Q: Where can I find the parts diagram for this battery charger?
A: The parts diagram is available in the “Parts” section of the manual.

CAUTION
Read all Safety Rules and Operating Instructions, and follow them with each use of this product.

PLEASE SAVE THIS OWNER’S MANUAL AND READ BEFORE EACH USE
The DieHard Model 71225 Microprocessor Controlled, Fully Automatic Operation Battery Charger with Engine Starter Plus Battery and Alternator Tester offers features to accommodate the needs for home or light commercial use. This manual will explain how to use the battery charger safely and effectively. Please read and follow these instructions and precautions carefully. For troubleshooting information, call toll-free from anywhere in the U.S.A. from 7 am to 4:30 pm Central Time Monday through Friday. 1-800-SEARS-64 (1-800=732-7764).

WARRANTY

THREE=YEAR FULL WARRANTY
If this Battery Charger fails due to a defect in material or workmanship within three years from the date of purchase, RETURN IT TO ANY SEARS STORE or OTHER DIEHARD OUTLET IN THE UNITED STATES FOR FREE REPLACEMENT.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Sears, Roebuck and Co., Hoffman Estates, IL 60179

IMPORTANT SAFETY INSTRUCTIONS

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

SAVE THESE INSTRUCTIONS

WARNING: Handling the cord on this product or cords associated with accessories sold with this product, may expose you to lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.
Read all instructions and cautions printed on the battery charger, battery, and vehicle or equipment using the battery.
Use chargers only on lead-acid type rechargeable batteries, such as those used in cars, trucks, tractors, aeroplanes, vans, RVs, trolling motors, etc. This charger is not intended to supply power to a low-voltage electrical system other than in a starter-motor application.
Never use a charger for charging dry cell batteries that are commonly used with home appliances like radios, stereos, remote controls, etc. These batteries may burst and cause personal injury.
Do not disassemble the charger. Take it to a qualified service professional if service or repair is required. Incorrect assembly may result in fire or electrical shock.
To reduce the risk of electrical shock, unplug the charger from the outlet before attempting any maintenance or cleaning.
Always charge the battery in a well-ventilated area.
WARNING: Battery chargers get hot during operation and must have proper ventilation. Air needs to flow around the entire charger. Do not set the charger on flammable materials like carpeting, upholstery, paper, cardboard, etc. The charger may damage leather and melt plastic and rubber.

HELP US HELP YOU Remember:

Place the charger as far away from the battery being charged as the charger cables will permit.
Do not expose the charger to rain or snow,
Never charge a frozen battery. If battery fluid (electrolyte) becomes frozen, bring the battery into a warm area to thaw before you begin charging.
Never allow battery acid to drip on the charger when reading specific gravity or filling the battery.
Never set a battery on top of the charger.
Never place the charger directly above the battery being charged. The gases from the battery will corrode and damage the charger.
Never touch the battery clamps together when the charger is on. You could cause a spark.
Never operate the charger if it has received a hard blow, been dropped, or otherwise damaged. Take into a qualified professional for inspection and repair.
Be sure to position the charger power cord to prevent it from being stepped on, tripped over, or damaged.
Never pull out the plug by the cord when unplugging the charger. Pulling on the cord may cause damage to the cord or the plug.
Do not operate the charger if it has a damaged power cord or plug. Have the cord replaced.

PERSONAL SAFETY PRECAUTIONS

Wear complete eye and clothing protection when working with lead-acid batteries.
Make sure that someone is within range of your voice to come to your aid if needed while you work with or are near a lead-acid battery.
Have plenty of fresh water and soap nearby for use in case battery acid contacts your eyes, skin, or clothing. If this happens, wash immediately with soap and water. Then get medical attention.
Avoid touching your eyes while working with a battery. Acid particles (corrosion) may get into your eyes. If this occurs, flush eyes immediately with running cold water for at least 10 minutes. Then immediately get medical attention.
Remove all personal metal items from your body such as rings, bracelets, necklaces and watches, while working with a lead-acid battery. A battery can produce a short circuit current high enough to weld a ring (or the like) to metal, causing a severe burn.
Take care not to drop any metal tool or metal object onto the battery. This may spark or short-circuit the battery or another electrical device that may cause an explosion.
Always operate the battery charger in an open, well-ventilated area.
Never smoke or allow a spark or flame in the vicinity of the battery or engine.
Batteries generate explosive gases.
Neutralize any acid spills thoroughly with baking soda before attempting to clean up.

BEFORE USING YOUR BATTERY CHARGER

It is important to understand your charger’s requirements. This section will tell you about your charger’s electrical requirements and how to prepare a battery for charging.

PLUGGING IT IN
Your charger requires a 120V AC 2-prong wall outlet receptacle installed according to all local codes and ordinances.

ASSEMBLING YOUR CHARGER
Included with your battery charger are two cord wrap cleats for storage of the clamp cables.
To install, align the two tabs to correspond with the two receptacles and push until you hear a snap.

Wrap clamp cables after unplugging the power cord from the AC wall outlet and store your charger in a dry location.

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

Make sure that the pins on the charger’s power cord fit firmly into the extension cord, and that the extension cord fits firmly into the receptacle.
Check that the extension cord is properly wired and in good electrical condition.
Make sure that the wire size is large enough for its length and for the AC ampere rating, as specified in the chart below.

MINIMUM RECOMMENDED EXTENSION CORD

Length of Cord, in Feet 25 50 100 150

AWG*| Size| of Cord| 18| 16| 12| 10

*AWG = American Wire Gauge

PREPARING YOUR BATTERY TO BE CHARGED

You must read and follow these guidelines while you are preparing to charge the battery.

Make sure that you have a 6 or 12-volt lead-acid battery. Determine the voltage of the battery by referring to the vehicle owner’s manual or the battery markings. Charge the battery initially at the charger’s lowest rate.
Clean the battery terminals. Be careful to keep corrosion from getting in or around your eyes or on your hands.
Wear safety glasses. See additional “Personal Safety Precautions” on page 4.
If required, for batteries with removable vent caps, add distilled water to each cell until the battery acid reaches the level recommended by the manufacturer. This will help purge excessive gases from the cells. Be careful notto overfill. If you have a sealed battery with non-removable vent caps, no action is necessary.
Take time to read all of the battery manufacturer’s specific precautions, such as removing or not removing vent caps while charging, and recommended rates of charge.
Be sure that the area around the battery is well-ventilated while it is being charged. Gas can be forcefully blown away by using a piece of cardboard or other nonmetallic material as a fan.
If it is necessary to remove the battery from the vehicle to charge it, always remove the grounded terminal from the battery first. Turn off all vehicle accessories to avoid sparks from occurring.
NOTE: A marine (boat) battery installed in a boat must be removed and charged on shore.

OPERATING INSTRUCTIONS

NOTE: A marine (boat) boat battery must be removed and charged on shore. To charge it on board requires equipment specially designed for marine use.
IMPORTANT: Follow all safety instructions and precautions when charging your battery. Wear complete eye protection and clothing protection. Charge your battery in a well-ventilated area.

CHARGING BATTERY IN THE VEHICLE

Avoid personal injury by keeping clear of fan blades, belts, pulleys and other engine parts.
Avoid damaging the charger by keeping the power cord and output cords away from the hood, door or moving engine parts.
Note the polarity of the battery posts by checking the identification marks on the battery: POSITIVE (POS, P or +) and NEGATIVE (NEG, N or -). The positive post is usually larger than the negative post.
Identify which battery post is ground-ed or connected to the chassis. THIS IS NORMALLY THE NEGATIVE POST. NEGATIVE GROUNDED SYSTEM
Connecting to a negative-grounded system: Connect the red (POSITIVE) output clamp to the POSITIVE post of the battery. Rock and twist the clamp back and forth to be sure a solid electrical connection is made. Then connect the black (NEGATIVE) output clamp to a heavy, unpainted metal part of the chassis or engine block, away from the battery (see figure). DO NOT connect the clamp to the negative battery post, carburettor, fuel line or sheet metal part.
Connecting to a positive grounded
system: Connect the black (NEGATIVE) output clamp to the NEGATIVE post of the battery. Rock and twist the clamp back and forth to be sure a solid electrical connection is made. Then connect the red (POSITIVE) output clamp to a heavy, unpainted metal part of the chassis or engine block, away from the battery. DO NOT connect the clamp to the positive battery post, carburettor, fuel line or sheet metal part.
Plug the power cord into a 120V AC 2-prong wall outlet. The charger will be set to the default state of 12V REGULAR battery type, with no charge rate (tester mode).
Press the appropriate control buttons to select the desired charge rate and battery type. Within a few seconds, the CHARGING (yellow) LED should light and the charging process should start. If the CHECK (red) LED is on, check for correct cable connections.
To disconnect the charger, unplug its power cord before attempting to disconnect the output clamps. Then, standing away from the battery, remove the output clamp from the chassis or engine block. Finally, remove the output clamp from the battery post.
Clean and store the charger in a dry location.

CHARGING BATTERY REMOVED FROM THE VEHICLE

Note the polarity of the battery posts by checking the identification marks on the battery: POSITIVE (POS, P or +) and NEGATIVE (NEG, N or -). The positive post is usually larger than the negative post.
Attach at least a 24-inch-long, 6-gauge (AWG), insulated battery cable to the NEGATIVE (NEG, N or -) battery post.
Rock and twist the clamp back and forth to be sure a solid electrical connection is made.
Connect the red (POSITIVE) output clamp to the POSITIVE battery post.
Rock and twist the clamp back and forth to be sure a solid electrical connection is made.
Position yourself as far away from the battery as possible, and then connect the black (NEGATIVE) output clamp to the free end of the cable.
Plug the power cord into a 120V AC 2-prong wall outlet. The charge will be set to the default state of 12V REGULAR battery type, with no charge rate (tester mode).
Press the appropriate control buttons to select the desired charge rate and battery type. Within a few seconds, the CHARGING (yellow) LED should light and the charging process should start.
If the CHECK (red) LED is on, check for correct cable connections.
To disconnect the charger, unplug its power cord before attempting to disconnect the charger clamps. Then, standing away from the battery, remove the output clamp from the NEGATIVE battery post. Finally, remove the output clamp from the POSITIVE battery post.
Clean and store the charger in a dry location.

USING ENGINE START
Your battery charger can be used to jump-start your car if the battery is low. Follow these instructions on how to use the ENGINE START feature.

Important: Follow all safety instructions and precautions when charging your battery. Wear complete eye protection and clothing protection. Charge your battery in a well-ventilated area.
iMPORTANT: Using the ENGINE START feature WITHOUT a battery installed in the vehicle could cause damage to the vehicle’s electrical system.

For battery connections, see page 6 and follow instructions 1 – 6 of CHARGING BATTERY IN THE VEHICLE. With the charger plugged in and connected to the battery of the vehicle, set the CHARGE RATE to 80A START. Only the 80A START, CHARGING, and VOLTAGE LEDs should be lit unless the 6V REGULAR battery type has been selected. In that case, the 6V REGULAR LED will also be lit.
Crank the engine until it starts or 5 seconds pass. If the engine does not start, wait 3 minutes before cranking again.
After the engine starts, unplug the power cord before disconnecting the output clamps from the battery.
Clean and store the charger in a dry location.

NOTE: During the starting sequence listed above, the charger is set to one of three states.

Wait for cranking – The charger waits until the engine is being cranked before delivering 80 amps for engine start. The charger delivers charge at a rate of up to 12 amps while waiting and will reset if the engine is not cranked within 15 minutes. (If the charger resets, it sets itself for a 2A charge and 12V REGULAR battery.) While waiting for cranking, the digital display shows the battery voltage (it can’t be set to per cent).
Cranking – When cranking is detected, the charger will automatically deliver up to its maximum output (at least 80A) 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 in seconds. It starts at 5 and counts down to.
Cool Down – After cranking, the charger enters a mandatory 3-minute (180-second) cooldown state. During this period, no settings can be changed. The buttons are ignored. The digital display indicates the remaining cool-down time in seconds. It starts at 180 and counts down to 0. The 80A START LED blinks once every second. During the cool-down period, no current is livered to the battery. After 3 minutes, the 80A START LED will stop blinking and will light continuously, indicating that another crank cycle can be started. The digital display will change from displaying the countdown back to displaying the battery voltage. The CHARGING LED will then be lit.

ENGINE STARTING NOTES
If the battery is disconnected during the cool-down period, the charger will reset.

USING YOUR BATTERY CHARGER

OVERVIEW
Using this battery charger is very simple. First, connect the battery and AC power following the precautions listed under “OPERATING INSTRUCTIONS”. Then select the appropriate BATTERY TYPE and CHARGE RATE for your battery. The charger will then do everything automatically. This section explains a few details.
CHARGING: If the charger does not detect a properly connected battery, the CHECK (red) LED will light continuously until such a battery is detected. Charging will not begin while the CHECK LED is on. When charging begins, the CHARGING LED will be lit.
AUTOMATIC SHUT OFF: When the 2A, 12A or 30A charge rate is selected, the charger is set to perform an automatic charge. When an automatic charge is performed, the charger stops charging au- tomatically after the battery is charged.
ABORTED CHARGE: If charging can’t be completed normally, charging will be aborted. When charging is aborted, the charger’s output is shut off and the red CHECK LED and digital display blink on and off (at opposite times). In that state, the charger ignores all buttons. To reset after an aborted charge, either disconnect the battery or unplug the charger.
DESULFATION MODE: If a battery is left discharged for an extended period, it could become sulphated and not accept a normal charge. If the charger detects a sulphated battery, the charger will switch to a special mode of operation designed for such batteries. Activation of the special desulfation mode is indicated by blinking the CHARGING LED. If successful, normal charging will resume after the battery is desulfated. The CHARGING LED will then stop blinking and light continuously. Desulfation could take up to 10 hours. If desulfation fails, charging will be aborted and the CHECK (red) LED will blink.
COMPLETION OF CHARGING: Charge completion is indicated by the CHARGED (green) LED; when lit, the charger has stopped charging and switched to the Maintain Mode of operation. If the 12V DEEP CYCLE battery type was selected for other charge types, the CHARGED LED comes on when the battery is charged enough for normal use.
MAINTAIN MODE: When the CHARGED (green) LED is lit, the charger has started to Maintain Mode. This mode of operation is also known as Float-Mode Monitoring. In this mode, the charger keeps the battery fully charged by delivering a small amount of current, when necessary. The voltage is maintained at a level determined by the BATTERY TYPE selected. NOTE: For charge types other than DEEP CYCLE, the CHARGED LED might be lit before Maintain Mode is started.
GENERAL CHARGING NOTES: The charger is designed to control its cooling fan for efficient operation. Consequently, it is normal for the fan to start and stop when maintaining a fully charged battery. The fan does not run in Tester Mode.
If the charge mode is changed after changing has started (by pressing the CHARGE RATE or BATTERY TYPE button), the charging process will be restarted. The voltage displayed during charging is the charging voltage and usually will be higher than the battery’s resting voltage.

CHARGER CONTROLS

DIEHARD-200-71225-Battery-Charger-with-Engine-Starter-
FIG-6

DISPLAY MODE SWITCH
Use this switch button to set the function of the digital display to one of the following.

BATTERY %: The digital display shows an estimate of the per cent of charge of the battery connected to the charger battery clamps.
VOLTAG E: The digital display shows the voltage at the charger battery clamps in DC volts.
ALTERNATOR %: The digital display shows an estimated percentage of the output of the vehicle charging system connected to the charger battery clamps as compared to a properly functioning system.

BATTERY TYPE SWITCH
Use this switch button to set the type of battery to be charged to one of the following.

12V REGULAR: This is the type of battery usually used in cars, trucks, and motorcycles. These batteries have vent caps and are often marked “low maintenance” or “maintenance-free”.
12V DEEP CYCLE: Deep cycle batteries are usually marked as “deep cycle” or “marine”. Deep cycle batteries are usually larger than the other types.
12VAGM/GEL: AGM and gel cell batteries have sealed cases without vent caps. Such batteries are often smaller than the other types.
6V REGULAR: This is the type of battery usually used in antique and some specialized vehicles. The 6V REGULAR battery type is not selectable for batteries greater than 8.5V DC.
Except for AGM and gel cell batteries, all other battery types may or may not have vent caps. Vent caps are located on top of the battery and provide a means to add distilled water when needed. Batteries should be marked with their type.
If charging a battery that is not marked, check the manual of the item that uses the battery. If the battery type is unknown, use the REGULAR setting. Make sure the battery complies with the safety instructions.

CHARGE RATE SWITCH
Use this switch button to set the maximum charge rate to one of the following.

Charge rate to one of the following. 2ASLOW CHARGE RATE: Intended for charging small batteries such as those commonly used in garden tractors, snow mobiles and motorcycles. The 2A rate is not intended to be used as a trickle charger for larger batteries.
12A FAST or 30A RAPID CHARGE RATE: Use for charging automotive batteries, marine batteries, and deep cycle batteries. Not intended for industrial applications.
80ASTART: Provides 8 lamps for cranking an engine with a weak or run-down battery. Always use in combination with a battery.
NOTE: To turn OFF the charger, unplug from the power cord from the wall outlet.

CONTROL PANEL GUIDE

71225 CONTROL PANEL GUIDE

DIEHARD-200-71225-Battery-Charger-with-Engine-Starter-
FIG-13

Initial power-up, battery not detected| | | 0| | 0| | | | | | 0| | | | 00
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
No battery or reversed battery detected| | | 0| User selected| User selected| User selected| 0% or0.0V
Battery tester activated| | | | 0| | | | | | | User selected| 0~100%
Battery tester with charged battery| 0| | | 0| | | | | | | User selected| 100%
Battery tester with no battery| | | 0| 0| | | | | | | User selected| 0%
Voltage meter activated| | | | | 0| | | | | | User selected| 0.0~17.0V
Alternator tester activated| | | | | | 0| | | | | User selected| 0~199%
Alternator tester on good alternator| 0| | | | | 0| | | | | User selected| 0~199%
Alternator tester on bad alternator| | | 0| | | 0| | | | | User selected| 0~199%
2 Amp charge with battery detected| | 0| | User sel.| | 0| | | | A user selected| xx% or xx. xv
12 Amp charge activated| | 0| | User sel.| | | 0| | | A user selected| xx% or xx. xv
30 Amp charge activated| | 0| | User sel.| | | | 0| | A user selected| xx% or xx. xv
Charge complete – Maintain Mode started| 0| | | User sel.| | | | | | User selected| 100% or xx. xv
80A Engine Start|
Waiting for the engine crank| | 0| | | 0| | | | | 0| | | | | 1.0-16.0V
Cranking engine| | 0| | | | | | | | 0| | | | | 5, Q
Cool down after cranking| | | | | | | | | | B| | | | | 180– ;Q
Desulfation mode activated| | B| | User sel.| | User selected| | User selected| 15% or 16V
Charge aborted| | | B| | | | | | | | | | | | 8.8.8. (B)

USING THE BUILT-IN BATTERY TESTER

OVERVIEW
This battery charger has a built-in battery tester that displays either an accurate battery voltage or an estimate of the battery’s relative charge based on the battery voltage and the Battery Council International scale.
TESTING SEQUENCE
There are four basic steps required to use tha 74225 as a hattory tester.

TESTING SEQUENCE
There are four basic steps required to use the 71225 as a battery tester.

Connect the charger battery clamps to the battery. Be sure to follow all of the precautions listed under “OPERATING INSTRUCTIONS”.
Connectthe charger power cordto a 120V AC 2-prong wall outlet. Again, be sure to follow all of the precautions listed under “OPERATING INSTRUCTIONS”.
If necessary, press the BATTERY TYPE button until the correct type is indicated.
Read the voltage on the digital display or press the display mode button to set the tester to BATTERY % and read the battery percent.

TESTER AND CHARGER
When first turned on, the 71225 oper- ates only as a tester, not as a charger. To continue to use it as only a tester, avoid pressing the CHARGE RATE switch but- ton. Selecting a charge rate activates the battery charger and deactivates the tester. Pressing the CHARGE RATE button when the 80A Start LED is lit (except during the 180 second cool down) will shut off the charger and activate the tester.
POWER-UP IDLE TIME LIMIT
If no switch button is pressed within 15 minutes after the battery is first powered up, the charger will automatically switch from tester to charger, if a battery is connected. In that case, the battery will be set for the 2A charge rate and 12V REGULAR battery type.
TESTER WITHOUT TIME LIMIT
If either the DISPLAY MODE or BAT- TERY TYPE button is pressed within the first ten minutes after the battery is powered up, the battery will remain a tester (not a charger) indefinitely, unless a charge rate is selected.
TESTING AFTER CHARGING
After the battery has been changed from tester to charger (by selecting a charge rate), it remains a charger. To change the battery back to a tester, press the CHARGE RATE switch until all charge rate LEDs are off.
TESTER STATUS LEDS
When the 71225 is operating as a bat- tery tester, the status LEDs light under the followina conditions:

The CHARGED (green) LED will light if a charged battery is tested
The CHARGING (yellow) LED does not light in the battery test mode.
The CHECK (red) LED lights unless a properly connected battery is detected.
When the tester display mode is set to VOLTAGE, the CHARGED and CHARG- ING LEDs won’t light.

INITIAL PERCENT CALCULATION
When a battery % is calculated for the first time after connecting a battery, the digital display will show three dashes (*–“) for a period as long as several seconds while the tester analyzes the battery.
NOTES FOR TESTING BATTERY % A recently charged battery could have a temporarily high voltage due to what is known as “surface charge”. The voltage of such a battery will gradually drop during the period immediately after the charging system is disengaged. Consequently, the tester could display inconsistent values for such a battery. For a more accurate reading, the surface charge should be removed by temporarily creating a load on the battery, such as by turning on lights or other accessories.
The battery % ranges from 0 to 100. 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 BUILT-IN ALTERNATOR TESTER

This battery charger has a built-in alter- nator tester that displays either an accu- rate alternator voltage or an estimate of the alternator’s relative output compared to normal alternators. The Alternator % values displayed should be taken as general reference, not precise diagnosis. The alternator tester functions the same as the battery tester (see previous sec- tion of this manual for details) with a few differences.

TESTING SEQUENCE
There are three basic steps required to use the 71225 as an alternator tester.

Connect the charger battery clamps to the battery or charging system. Be sure to follow all of the precautions listed under “OPERATING INSTRUC- TIONS”.
Connect the charger power cord to a 120V AC 2-prong wall outlet. Again, be sure to follow all of the precautions listed under “OPERATING INSTRUC- TIONS”.
Start the vehicle and turn on the vehicle’s headlights. Read the voltage on the digital display or press the DISPLAY MODE button to set the tester to ALTERNATOR % and read the alternator percent.

TESTER STATUS LEDS
When the 71225 is operating as an alterna- tor tester, the status LEDs light under the followina conditions.

The CHARGED (green) LED will light if the output of the charging system is at the normally desired level.
The CHARGING (yellow) LED does not light in the alternator test mode.
The CHECK (red) LED lights if the voltage is much higher or lower than normally desired.
When the tester display mode is set to VOLTAGE, the CHARGED and CHARGING LEDs won’t light (it could be testing a battery or an alternator).

ALTERNATOR TESTING NOTES

The alternator percent display can range from 0 to 199.
The DISPLAY MODE cannot be set to ALTERNATOR% during charging.

BATTERY PERCENT AND CHARGE TIME

This charger adjusts the charging time in order to charge the battery completely, efficiently and safely. The microproces- sor automatically makes the necessary decisions. However, this section includes guidelines that can be used to estimate charging times.
The duration of the charging process de- pends on three factors:

Battery State – If a battery has only been slightly discharged, it can be charged in less than a few hours. The same battery could take up to 10 hours if very weak. The battery state can be estimated by using the built-in tester (see page 11). The lower the reading the longer charging will take.
Battery rating – A higher rated battery will take longer to charge than a lower rated battery under the same conditions. A battery is rated in ampere-hours (AH), reserve capacity (RC) and cold cranking amps (CCA). The lower the rating the quicker the battery will be charged.
Charge rate – The charge rate is measured in amps. This charger provides charge rates of 2A, 12A and 30A. The 80A rate is for engine start only. The 2A rate is for charg- ing smaller batteries such as those used for motorcycles and garden tractors. Such batteries should not be charged using the 12A or 30A rate. The 12A and 30A rates are for charg- ing larger batteries. In the 30A mode, the charger begins at a low-charge rate and increases-the charge rate if it is determined that the battery can accept the higher rate. All charging modes will decrease the charge rate as the battery approaches maximum charge. After the charging process has started, the digital display can be used to determine charging progress by selecting the BATTERY % mode.

There are some important facts to keep in mind when charging a battery.

When the display indicates 77% charged, the battery has been charged enough to start most vehicles and has already been charged as much as by many other battery chargers.
When the display indicates 85% charged, the battery has already been charged at least as much as by most other battery chargers.
The battery % shown in tester mode is an estimate based on the bat- tery voltage and the Battery Council International scale. The battery % shown in charger mode is an estimate of the relative charge in the battery compared to the charge it should have if the charging process is allowed to complete.
The battery % shown in tester mode can be used to estimate the relative charge time. The lower the % shown, the longer the charge time for a given battery.
The battery % shown in charger mode is an indication of the relative progress of the charging process. The higher the battery % displayed, the less charge time remains.
The more a battery is discharged, the faster it absorbs charge from a charger. That means that the battery % increases faster at the beginning of the charging process than at the end. In other words, it takes longer for the battery to absorb the last few percent of charge than the first several percent.

CHARGING TIPS

Read this entire manual before using your charger. The tips below serve only as a guide for specific situations.

If your vehicle won’t start: You don’t need to fully charge a battery to start your ve- hicle. If the charger won’t start your vehicle using the 80A START rate, try charging the battery using the 30A rate for 10 or 15 minutes. That should charge the battery enough to allow the 80A START rate to start the vehicle. If the vehicle will then be operated continuously for an extended period (such as a long drive), the vehicle could charge the battery back to normal during that period. If the vehicle will only be operated for a short period (short drive), the battery might need to be charged again before it could start the vehicle again.

Reviving your battery: If you only wish to charge your battery enough to operate your vehicle, you don’t need to wait for the entire charging process to be completed. When the charger displays a battery % of 77 or more (see page 13), the battery has usually been charged enough for the vehicle to start and operate normally.
Completing an interrupted charge: If the charging process has been interrupted and restarted after the charger displays a battery % of 85 or more, the charger could go straight to Maintain Mode (see page 8). However, if the original charge was started using 30A, the charge can often be completed using the 2A rate.

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.
Coil the input and output cords neatly when storing the charger. This will help pre- vent accidental damage to the cords and charger.
Occasional cleaning of the case of the charger with a soft cloth will keep the finish shiny.

TROUBLESHOOTING

Performance problems often can be corrected by the user. Please read through this chart for a possible solution to common problems.

DIEHARD-200-71225-Battery-Charger-with-Engine-Starter-
FIG-8 DIEHARD-200-71225-Battery-
Charger-with-Engine-Starter-FIG-9

PARTS

This section shows an illustration of your battery charger. Use it to become familiar with part locations and appearance.

Replacement Parts List S ears 71225

IT EM| DE S C R IPTION| PART NUMBER
1| Handle Assembly| 2299001477
2| Case, Top| 3799004060
3| Faceplate| 0899002634
4| Control Board Assembly| 2299001462
5| Output Cables and Clamps| 3899002000
6| Power Cord| 90026135
7| Cord Cleat| 1199004390
8| Transformer| 93026580
9| Power Board/ Heatsink Assembly| 2299001471
10| Circuit Breaker| 3999000105
11| Fan| 0099000453
12| Case, Bottom| 3699001330
13| Instruction Manual| 0099000536