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		 OWNER’S MANUAL   
					Model 2500A   
					For 12-Volt Batteries   
					™ 
					SpeedCharge   
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					2C H A R G E 25C H A R G E   
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					12C H A R G E   
					M E D I U M   
					Fully Automatic   
					Microprocessor Controlled   
					Battery Charger with   
					Battery Tester   
					CAUTION:   
					Read all Safety Rules and Operating Instructions,   
					and follow them with each use of this product.   
					Schumacher Electric Corporation   
					Mount Prospect, IL 60056 U.S.A.   
					Send Warranty Product Repairs to:   
					Customer Service Returns   
					P.O. Box 280,1025 E. Thompson, Hoopeston, IL 60942-0280   
					Questions? Call Customer Service: 1-800-621-5485   
					0099000398/1004   
				IMPORTANT SAFETY INSTRUCTIONS   
					WARNING – RISK OF EXPLOSIVE GASES   
					WORKING IN 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 risk of battery explosion, follow these instructions and those published by   
					battery manufacturer and manufacturer of any equipment you intend to use in vicinity   
					of battery. Review cautionary markings on these products and on engine.   
					SAVE THESE INSTRUCTIONS   
					This manual contains important safety and operating instructions for battery charger   
					Model 2500A.   
					• WARNING: Handling the cord on this   
					product or cords associated with   
					accessories sold with this product, will   
					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.   
					• To reduce risk of electrical shock,   
					unplug the charger from the outlet   
					before attempting any maintenance or   
					cleaning.   
					• Always charge battery in a well-   
					ventilated area.   
					• WARNING: Battery chargers get hot   
					during operation and must have   
					proper ventilation. Air needs to flow   
					around entire charger. Do not set   
					charger on flammable materials like   
					carpeting, upholstery, paper, card-   
					board, etc. Charger may damage   
					leather, plastic and rubber.   
					• Read all instructions and cautions   
					printed on the battery charger,   
					battery, and vehicle or equipment   
					using battery.   
					• Use charger only on lead-acid type   
					rechargeable batteries, such as those   
					used in cars, trucks, tractors, air-   
					planes, vans, RV’s, trolling motors,   
					etc. This charger is not intended to   
					supply power to a low voltage   
					HELP US HELP YOU ——   
					Remember:   
					Place charger as far away from the   
					battery being charged as the charger   
					cables will permit.   
					electrical system other than in a   
					starter-motor application.   
					• Never use 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 expose charger to rain or snow.   
					Never charge a frozen battery. If battery   
					fluid (electrolyte) becomes frozen, bring   
					battery into a warm area to allow to   
					thaw before you begin charging.   
					Never allow battery acid to drip on   
					charger when reading specific gravity or   
					filling battery.   
					• Do not disassemble charger. Take it   
					to a qualified service professional if   
					service or repair is required. Incorrect   
					assembly may result in fire or   
					electrical shock.   
					Never set a battery on top of charger.   
					3 
				Never place charger directly above   
					battery being charged. The gases from   
					the battery will corrode and damage the   
					charger.   
					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.   
					Never touch the battery clamps together   
					when the charger is on. You could   
					cause a spark.   
					Never operate charger if it has received   
					a hard blow, been dropped, or otherwise   
					damaged. Take it to a qualified profes-   
					sional for inspection and repair.   
					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.   
					• 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.   
					• 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.   
					• Take care not to drop any metal tool   
					or metal object onto the battery. This   
					may result in a spark or short circuit   
					across the battery or another electri-   
					cal device that may cause an explo-   
					sion.   
					• 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.   
					• 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.   
					• Never charge a frozen battery.   
					• Neutralize any acid spills thoroughly   
					with baking soda before attempting to   
					clean up.   
					4 
				BEFORE USING YOUR BATTERY CHARGER   
					It is important to understand the charger’s requirements. This section explains the   
					charger’s electrical requirements and how to prepare a battery for charging.   
					extension cord, please make sure that   
					you follow these guidelines:   
					PLUGGING IT IN   
					Your charger requires a 120V AC   
					receptacle installed according to all local   
					codes and ordinances.   
					• Make sure that pins on plug of   
					extension cord are the same number,   
					size, and shape as those of plug on   
					charger.   
					• 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   
					USING AN EXTENSION CORD   
					The use of an extension cord is not   
					recommended. If you must use an   
					Length of Cord, in Feet   
					25 50 100 150   
					18 16 12 10   
					AWG* Size of Cord   
					*AWG=American Wire Gauge   
					PREPARING YOUR BATTERY TO BE CHARGED   
					It is important that you read and follow these guidelines while you are preparing to   
					charge the battery.   
					• Make sure that you have a 12 volt   
					lead-acid battery. Determine voltage   
					of battery by referring to vehicle   
					owner’s manual. Charge battery   
					initially at charger’s lowest rate.   
					• 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.   
					• Clean the battery terminals. Be   
					careful to keep corrosion from getting   
					in or around your eyes.   
					• 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.   
					• Wear safety glasses. See additional   
					“Personal Safety Precautions” on   
					page 4.   
					• 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.   
					• For batteries with removable vent   
					caps, if required, 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 not to overfill. If you have a   
					sealed battery with non-removable   
					vent caps, no action is necessary.   
					• NOTE: A marine (boat) battery   
					installed in a boat must be removed   
					and charged on shore.   
					5 
				OPERATING INSTRUCTIONS   
					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:   
					heavy, unpainted metal part of the   
					chassis or engine block, away from   
					the battery (see figure above). DO   
					NOT connect clamp to negative   
					battery post, carburetor, and fuel line   
					or sheet metal part.   
					1. Avoid personal injury by keeping   
					clear of fan blades, belts, pulleys and   
					other engine parts.   
					2. Avoid damaging the charger by   
					keeping the power cord and output   
					cords away from the hood, door or   
					moving engine parts.   
					Connecting to a positive-grounded   
					system: Connect the black (NEGA-   
					TIVE) output clamp to the NEGA-   
					TIVE 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 (POSI-   
					TIVE) output clamp to a heavy,   
					unpainted metal part of the chassis   
					or engine block, away from the   
					3. 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.   
					4. Identify which battery post is   
					grounded or connected to the   
					chassis. THIS IS NORMALLY THE   
					NEGATIVE POST.   
					battery. DO NOT connect clamp to   
					positive battery post, carburetor, and   
					fuel line or sheet metal part.   
					6. Plug power cord into an AC outlet.   
					The charger will be set to the Tester   
					Mode for REGULAR battery type.   
					7. Press the appropriate control buttons   
					to select the desired charge rate and   
					battery type. The CHARGING   
					(yellow) LED should light and the   
					charging process should start. If the   
					CHECK (red) LED is on, check for   
					correct cable connections.   
					8. 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.   
					NEGATIVE GROUNDED SYSTEM   
					5. 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   
					9. Clean and store the charger in a dry   
					location.   
					6 
				5. Plug the power cord into an AC   
					outlet. The charger will be set to the   
					Tester Mode for REGULAR battery   
					type.   
					CHARGING BATTERY REMOVED   
					FROM THE VEHICLE:   
					POSITIVE   
					NEGATIVE   
					6. Press the appropriate control buttons   
					to select the desired charge rate and   
					battery type. The CHARGING   
					HARGER   
					BAT 
					(yellow) LED should light and the   
					charging process should start. If the   
					CHECK (red) LED is on, check for   
					correct cable connections.   
					POWER   
					CORD   
					TO   
					GROUNDED   
					POWER   
					7. 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.   
					OUTLET   
					1. 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.   
					8. Clean and store the charger in a dry   
					location.   
					2. Attach at least a 24-inch-long, 6-   
					gauge (AWG), insulated battery   
					cable to NEGATIVE (NEG, N or -)   
					battery post. Rock and twist the   
					clamp back and forth to be sure a   
					solid electrical connection is made.   
					IMPORTANT: Follow all safety instruc-   
					tions and precautions when charging   
					your battery. Wear complete eye   
					protection and clothing protection.   
					Charge your battery in a well-ventilated   
					area.   
					3. 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.   
					4. 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.   
					7 
				SPEEDCHARGE CONTROL   
					™ 
					Charge   
					Rate   
					LEDs   
					Display   
					Mode   
					LEDs   
					Battery   
					Type   
					LEDs   
					SpeedCharge   
					Digital   
					LED   
					Status LEDs   
					Switch Buttons   
					2500A CONTROL PANEL   
					DISPLAY MODE SWITCH   
					Use this switch to set the function of the   
					digital meter to one of the following:   
					• BATTERY %: The digital meter   
					displays an estimate of the percent of   
					charge of the battery connected to the   
					charger battery clamps.   
					• VOLTAGE: The digital meter displays   
					the voltage at the charger battery   
					clamps in DC volts.   
					• 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”.   
					• DEEP CYCLE: Deep cycle batteries   
					are usually marked as “deep cycle” or   
					“marine”. Deep cycle batteries are   
					usually larger than the other types.   
					• AGM, GEL CELL: AGM and gel cell   
					batteries have sealed cases without   
					vent caps. Such batteries are often   
					smaller than the other types.   
					CHARGE RATE SWITCH   
					Use this switch button to set the charge   
					rate to one of the following three.   
					With the exception of 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 on page 3.   
					• 2A CHARGE RATE: Intended for   
					charging small batteries such as   
					those commonly used in garden   
					tractors, snow mobiles and motor-   
					cycles. The 2A rate is not intended to   
					be used as a trickle charger for larger   
					batteries.   
					• 12A or 25A CHARGE RATE: Use for   
					charging automotive batteries, marine   
					batteries, and deep cycle batteries.   
					Not intended for industrial applica-   
					tions.   
					BATTERY TYPE SWITCH   
					Use this switch button to set the type of   
					battery to be charged to one of the   
					following three.   
					8 
				CONTROL PANEL GUIDE   
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					9 
				USING THE BUILT-IN BATTERY TESTER   
					OVERVIEW   
					TESTING AFTER CHARGING   
					The 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 a scale set by the Battery   
					Council International.   
					After the unit has been changed from   
					tester to charger (by selecting a charge   
					rate), it remains a charger as long as it   
					has power. Disconnect and reconnect   
					the power to change the unit back to a   
					tester.   
					TESTING SEQUENCE   
					TESTER STATUS LEDs   
					There are four basic steps required to   
					use the charger as a battery tester.   
					1. Connect the charger battery clamps to   
					the battery. Be sure to follow all of the   
					precautions listed under “OPERAT-   
					ING INSTRUCTIONS”.   
					2. Connect the charger power cord to a   
					120 VAC outlet. Again, be sure to follow   
					all of the precautions listed under “OP-   
					ERATING INSTRUCTIONS”.   
					3. If necessary, press the Battery Type   
					button until the correct type is indi-   
					cated.   
					4. Read the voltage on the digital meter or   
					press the display mode button to set   
					the tester to “Battery %” and read the   
					battery percent.   
					When the charger is operating as a   
					battery tester, the status LEDs light   
					under the following conditions.   
					• The CHARGED (green) LED will light   
					if a fully charged battery is tested.   
					• The CHARGING (yellow) LED does   
					not light in the battery test mode.   
					• The CHECK (red) LED will light if a   
					battery is not properly connected.   
					• When the tester display mode is set   
					to voltage, none of the Status LEDs   
					light (it could be testing a battery) as   
					long as a voltage greater than one   
					volt is detected.   
					INITIAL PERCENT CALCULATION   
					When a battery % is calculated for the   
					first time after connecting a battery, the   
					digital meter will show two dashes (“--”)   
					for several seconds while the tester   
					analyzes the battery.   
					TESTER AND CHARGER   
					When first turned on, the charger   
					operates only as a tester, not as a   
					charger. To continue to use it as only a   
					tester, avoid pressing the CHARGE   
					RATE switch button. Selecting a charge   
					rate activates the battery charger and   
					deactivates the tester.   
					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.   
					POWER-UP IDLE TIME LIMIT   
					If no switch button is pressed within ten   
					minutes after the unit is first powered   
					up, the unit will automatically switch   
					from tester to charger, if a battery is   
					connected. In that case, the unit will be   
					set for the 2A charge rate and REGU-   
					LAR 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 unit is   
					powered up, the unit will remain a tester   
					(not a charger) indefinitely, unless a   
					charge rate is selected.   
					The battery % ranges from 0 to 100.   
					The battery tester is only designed to   
					test 12V batteries. Testing a device with   
					a rapidly changing voltage could yield   
					unexpected or inaccurate results.   
					10   
				USING YOUR BATTERY CHARGER   
					OVERVIEW   
					special desulfation mode is indicated by   
					blinking the CHARGING LED. If   
					Using the 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.   
					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.   
					CHARGING: If the charger does not   
					detect a properly connected battery, the   
					CHECK (red) LED will light continuously   
					until a battery is detected. Charging will   
					not begin while the CHECK light is on.   
					When charging begins, the CHARGING   
					LED will be lit.   
					MAINTAIN MODE: When the   
					CHARGED (green) LED is lit, the   
					charger has started 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 current,   
					when necessary. The voltage is main-   
					tained at a level determined by the   
					BATTERY TYPE selected.   
					AUTOMATIC SHUT OFF: When the 2A,   
					12A, or 25A charge rate is selected, the   
					charger is set to perform an automatic   
					charge. When an automatic charge is   
					performed, the charger stops charging   
					automatically after the battery is fully   
					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 meter blink on   
					and off (at opposite times). In that state,   
					the charger ignores all buttons. To reset   
					from after an aborted charge, either   
					disconnect the battery or unplug the   
					charger.   
					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   
					normally run in Tester Mode.   
					If the charge mode is changed after   
					charging has started (by pressing the   
					CHARGE RATE or BATTERY TYPE   
					button), the charging process will be   
					restarted.   
					DESULFATION MODE: If a battery is   
					left discharged for an extended period, 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. Activation of the   
					The voltage displayed during charging is   
					the charging voltage and usually will be   
					higher than the battery’s resting voltage.   
					11   
				KNOW YOUR CHARGER   
					Read this entire manual before using your charger. The items below are additional   
					features of your charger.   
					Relay: Your charger is equipped with a   
					relay. This device turns the charge   
					current on and off to the battery. It is   
					normal to occasionally hear a clicking   
					sound when the relay is turned on or off.   
					Overtemperature Protection: Your   
					charger is equipped with an internal   
					thermocouple. This device monitors the   
					temperature and allows the charger to   
					turn the fan on and off as needed. If the   
					temperature rises above a preset level,   
					the charge current will be reduced to   
					allow the charger to cool. If the tem-   
					perature can not be reduced at the lower   
					charge rate, the charge current will be   
					turned off until the temperature is   
					reduced to a normal level. The charger   
					will then continue where it left off. For   
					best results, do not place the charger in   
					direct sunlight or enclosed spaces with   
					high temperatures.   
					Fan: Your charger is equipped with a   
					fan. It is normal for the fan to be on   
					while the charger is charging (as long as   
					the voltage is above 9V). The fan is   
					normally off at other times but may   
					cycle on and off due to temperature or   
					other conditions (See Overtemperature   
					Protection). Keep the area near the   
					charger clear of obstructions to allow   
					the fan to operate efficiently.   
					CHARGING TIPS   
					Read this entire manual before using your charger. The tips below serve only as a   
					guide for specific situations.   
					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 14), 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 inter-   
					rupted and restarted after the charger   
					displays a battery % of 85 or more, the   
					charger could go straight to Maintain   
					Mode (see previous page). However, if   
					the original charge was started using   
					25A, 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.   
					1. 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.   
					2. Coil the input and output cords neatly when storing the charger. This will help   
					prevent accidental damage to the cords and charger.   
					3. Occasional cleaning of the case of the charger with a soft cloth will keep the finish   
					shiny and help prevent corrosion.   
					4. Store the battery charger in a clean and dry location.   
					12   
				BATTERY PERCENT AND CHARGE TIME   
					This charger adjusts the charging time   
					There are some important facts to keep   
					in order to charge the battery com-   
					pletely, efficiently and safely. The   
					microprocessor automatically makes   
					the necessary decisions. However, this   
					section includes guidelines that can be   
					used to estimate charging times.   
					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.   
					The duration of the charging process   
					depends on three factors:   
					• When the display indicates 85%   
					charged, the battery has already been   
					charged at least as much as by most   
					other battery chargers.   
					1. 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 10). The lower the   
					reading the longer charging will take.   
					• The battery % shown in tester mode   
					is an estimate based on the battery   
					voltage and a scale set by the Battery   
					Council International. 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   
					2. 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 faster the   
					battery will be charged.   
					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.   
					3. Charge rate – The charge rate is   
					measured in amps. This charger   
					provides charge rates of 2A, 12A and   
					25A. The 2A rate is for charging   
					smaller batteries such as those used   
					for motorcycles and garden tractors.   
					Such batteries should not be charged   
					using the 12A or 25A rates. The 12A   
					and 25A rates are for charging larger   
					batteries. The charger charges at the   
					selected charge rate and eventually   
					reduces the charge rate in a con-   
					trolled manner. After the charging   
					process has started, the digital   
					• 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.   
					display can be used to determine   
					charging progress by selecting the   
					BATTERY % mode.   
					13   
				TROUBLESHOOTING   
					Performance problems often can be corrected by the user. Please completely read   
					this chart for possible solutions to common problems.   
					PROBLEM   
					POSSIBLE CAUSE   
					SOLUTION   
					The battery is connected and The charger is not in   
					Press DISPLAY MODE   
					button until Battery % or   
					Voltage light comes on.   
					the charger is on, but it isn't   
					charging.   
					charging mode.   
					Indicator lights are lit in an   
					erratic manner not explained   
					in the “Using Your Battery   
					Charger” section.   
					A button may have been   
					pressed when the charger   
					was plugged in.   
					Make sure nothing is   
					touching the control panel,   
					then unplug the unit and   
					plug it in again.   
					The charger may be   
					defective.   
					Return to place of purchase   
					for replacement.   
					All the lights are flashing.   
					Charger in abort mode.   
					Battery may be bad.   
					See “USING YOUR   
					BATTERY CHARGER.”   
					The CHECK (red) light   
					always flashes before the   
					battery is completely   
					charged.   
					This will happen if the   
					battery did not reach full   
					charge within 24 hours. May necting the negative battery   
					be due to a very large clip. Select the desired   
					battery or a bank of batteries charge rate and battery type   
					Reset the charger by un-   
					plugging it or briefly discon-   
					requiring more power than   
					the charger can deliver in   
					24 hours. Battery may also   
					be faulty.   
					again, if necessary.   
					The green CHARGED light   
					turns on a few minutes after   
					connecting to the battery.   
					The battery may be fully   
					If the battery is in a vehicle,   
					charged or recently charged, turn the headlights on for a   
					leaving the battery voltage few minutes to reduce the   
					high enough to appear to be battery voltage and try   
					fully charged.   
					charging again. Also try a   
					lower CHARGE RATE   
					selection.   
					The charger is making an   
					audible clicking sound.   
					The charger has a relay that No problem, this is a normal   
					turns the current on and off   
					to the battery.   
					condition.   
					The fan turns on and off   
					unexpectedly.   
					The fan is turned on and   
					off as determined by the   
					software and temperature.   
					No problem, this is a normal   
					condition.   
					The measured current is   
					much lower than what   
					was selected.   
					The charger reached the   
					maximum voltage and is   
					reducing the current.   
					No problem, this is a normal   
					condition.   
					The charger detected an   
					over-temperature condition   
					Make sure the charger does   
					not have the side ventilation   
					and has reduced the current holes blocked. Move charger   
					to allow the unit to cool.   
					out of the sun and into the   
					shade.   
					The charger was unplugged   
					from the wall but the display   
					is still on.   
					The battery is supplying the Disconnect the battery or   
					power to the display.   
					press CHARGE RATE or   
					BATTERY TYPE switch.   
					14   
				NOTES   
					15   
				LIMITED WARRANTY   
					SCHUMACHER ELECTRIC CORPORATION,   
					801 BUSINESS CENTER DRIVE,   
					MOUNT PROSPECT, ILLINOIS 60056-2179   
					MAKES THIS LIMITED WARRANTY TO THE ORIGINAL PURCHASER AT RETAIL   
					OF THIS PRODUCT. THIS LIMITED WARRANTY IS NOT TRANSFERABLE.   
					Schumacher Electric Corporation warrants this battery charger for five years from   
					date of purchase at retail against defective material or workmanship. If such should   
					occur, the unit will be repaired or replaced at the option of the manufacturer. It is the   
					obligation of the purchaser to forward the unit together withthe original sales receipt,   
					transportation and/or mailing charges prepaid to the manufacturer or its authorized   
					representative.   
					This limited warranty is void if the product is misused, subjected to careless handling,   
					or repaired by anyone other than the manufacturer or its authorized representative.   
					The manufacturer makes no warranty other than this limited warranty and expressly   
					excludes any implied warranty including any warranty for consequential damages.   
					THIS IS THE ONLY EXPRESS LIMITED WARRANTY AND THE MANUFACTURER   
					NEITHER ASSUMES NOR AUTHORIZES ANYONE TO ASSUME OR MAKE ANY   
					OTHER OBLIGATION TOWARDS THE PRODUCT OTHER THAN THIS EXPRESS   
					LIMITED WARRANTY. THE MANUFACTURER MAKES NO WARRANTY OF   
					MERCHANTABILITY OR FITNESS FOR PURPOSE OF THIS PRODUCT AND   
					EXPRESSLY EXCLUDES SUCH FROM THIS LIMITED WARRANTY.   
					SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDEN-   
					TAL OR CONSEQUENTIAL DAMAGES OR LENGTH OF IMPLIED WARRANTY SO   
					THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU.   
					THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO   
					HAVE OTHER RIGHTS THAT VARY FROM STATE TO STATE.   
					WARRANTY VALIDATION: The enclosed “Warranty Validation Card” must be   
					completed and mailed within 10 days of product purchase to activate this limited   
					warranty.   
					16   
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