BatteryMINDer® INSTRUCTION MANUAL Model 12248 BatteryMINDer® Model 12248* Charger / Maintainer / Desulphator-Conditioner 9LL=JQ'#( =J ¸ For Lead-Acid Batteries ONLY Charger / Maintainer / VDC Electronics, Inc. 800-379-5579 (ET) Full Time De-Sulfator - Conditioner www.batteryminders.com U.S.
Model 12248 BatteryMINDer® TABLE OF CONTENTS Safety Instructions...................................................................................................................... 3 Preparing To Charge................................................................................................................... 5 Charger Location......................................................................................................................... 5 DC Connection Precautions.......................
Model 12248 BatteryMINDer® Underwriters Laboratories (UL) REQUIRED SAFETY INSTRUCTIONS WARNING TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSON, OBSERVE THE FOLLOWING: 1. Do not expose charger to rain or snow. It is designed to operate ONLY INDOORS. 2. USE of any attachment not specifically recommended by the battery charger manufacturer for use with this exact model of charger may result in risk of fire & electric shock or injury to person. 3.
Model 12248 BatteryMINDer® To reduce risk of battery explosion, follow these instructions and those published by the battery manufacturer and the manufacturer of any equipment you plan to use in the vicinity of the battery. Review cautionary markings on the products and the engine. 8. PERSONAL PRECAUTIONS when working with or near a lead acid battery. a. Someone should be able to hear your voice or close enough to aid you when working near a lead acid battery. b.
Model 12248 BatteryMINDer® NEVER CHARGE A FROZEN BATTERY OR ONE AT A TEMPERATURE ABOVE 123° F. PREPARING TO CHARGE a. If necessary to remove battery from equipment to charge. Always remove ground terminal first. Turn off all accessories in the vehicle, so as not to cause an arc. b. Be sure area around battery is well ventilated while battery is being charged. Force gas vapors away by using a piece of non-metallic material as a fan. c. Clean battery terminals.
Model 12248 BatteryMINDer® DC CONNECTION PRECAUTIONS a. Connect and disconnect DC output clips from battery only after removing charger power cord from outlet. b. Attach clips to battery posts and twist or rock back and forth several times to make good contact. This tends to keep clips from slipping off terminals and reduces risk of sparking. FOLLOW THESE INSTRUCTIONS WHEN BATTERY IS INSTALLED IN EQUIPMENT (VEHICLE, PWC, BOAT, TRACTOR, ETC.) A SPARK NEAR BATTERY MAY CAUSE BATTERY TO EXPLODE.
Model 12248 BatteryMINDer® DO NOT CONNECT CLIP TO CARBURETOR, FUEL LINES, OR SHEET METAL BODY PARTS. Connect to heavy gauge metal part of frame or engine. h. When disconnecting charger, disconnect charger from AC outlet, then remove clips from vehicle chassis, and battery posts. Operating instructions for charge information. FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE OF VEHICLE OR EQUIPMENT. A SPARK NEAR THE BATTERY MAY CAUSE BATTERY EXPLOSION. TO REDUCE RISK OF A SPARK NEAR BATTERY: a.
Model 12248 BatteryMINDer® QUALIFYING YOUR BATTERY: Preliminary Requirements NOTE: The BatteryMINDer has no electrical output unless it is connected to a healthy battery. Testing the BatteryMINDer with a volt or an Amp meter without the unit being connected across a good battery will result in a false reading. If you experience any problems, or are not sure of how to properly use or connect your BatteryMINDer, please e-mail our technical support at: techsupport@vdcelectronics.
Model 12248 BatteryMINDer® 3. Refill each cell with distilled water only to the liquid level indicator found in each cell. Before proceeding further you must be thoroughly familiar with the safety and operating instructions. 4. Recharge the battery with the BatteryMINDer to ensure that it is slowly and completely charged before you determine its condition.
Model 12248 BatteryMINDer® Testing with a Hot/Cold Calibrated Hydrometer Tester Read the tester instructions carefully for most accurate readings. 1. When using the tester the first time or after a long period of non-use, fill the tester with the battery fluid and let it sit for 1/2 hour or longer. This will soak the balls in order to give you more accurate readings. Failure to do so will give you false readings indicating a battery that may not be in as good a condition as you may have thought. 2.
Model 12248 BatteryMINDer® Failure to test a “rested” (see pg. 9) battery will cause false readings. Be certain to read and understand all safety related instructions (pages 3 to 7) before proceeding further. OCV=Open Circuit No Load Voltage OCV - “Rested” Voltage 12.9 - 13.1 Volts 12.6 - 12.9 Volts 12.4 - 12.6 Volts 12.2 - 12.4Volts 12.0 - 12.2 Volts <11 Volts = shorted 2. Measure battery’s voltage, without any load attached. If the voltage is less than 12.
Model 12248 BatteryMINDer® 3 11 12 9LL=JQ'#( =J ¸ 1 8A AGM 4A FLOODED 2A GEL Red = Polarity Reversed / Battery = less than 3-Volts* Red (Blinking) = Battery not fully charged charger in float-maintenance mode* Battery Condition Indication Power On & Battery Connected Before Start Charge: Green = OK - Accepted Yellow = Weak / Sulfated / Deep Discharge* After Charge: Green = Good Yellow = Sulfated / Weak* MAINTENANCE (FLOAT) PRESS PRESS PRESS Select Charge Rate Select Battery Type Stop R
Model 12248 Simplified Operating Instructions (Read and thoroughly understand ALL SAFETY Instructions on pages (3-7) and Qualifying Your Battery pages 8-11, BEFORE proceeding further. 1. Attach a battery connector assembly (supplied) to output cordset of charger, either the clips or ring terminal assembly, - NEVER BOTH at same time. 2. Attach output to battery terminals-RED band =Positive + BLACK band = Negative.
Model 12248 BatteryMINDer® LED INDICATOR FUNCTIONS -- Tables 3 (top) and 4 A&B (bottom) Battery Condition Indication Battery connected BEFORE full Charge: Vb<11V YELLOW Vb>11V GREEN If Stop/Restart Button is Pressed during charging mode STOPS CHARGING AND ALLOWS RESET OF ALL SELECTIONS Battery Sulfation check (AFTER FULL CHARGE): Vb<11V YELLOW Vb>11V Battery Sulfation check (AFTER FULL CHARGE): Vb<12.5V* Vb>12.5V* GREEN YELLOW GREEN *12.75V for Gel battery. *12.75-V for AGM battery setting. 12.
Model 12248 BatteryMINDer® LED INDICATOR FUNCTIONS LED indicators refer to charger label at right GREEN GREEN GREEN 2A 4A 8A 2A ON OFF OFF 4A OFF ON OFF 8A OFF OFF ON TABLE 5 GREEN GREEN GREEN GEL AGM FLOODED GEL ON OFF OFF AGM OFF ON OFF FLOODED OFF OFF ON 9LL=JQ'#( =J ¸ For Lead-Acid Batteries ONLY Charger / Maintainer / VDC Electronics, Inc. 800-379-5579 (ET) Full Time De-Sulfator - Conditioner www.batteryminders.com U.S.
Model 12248 BatteryMINDer® Detailed Operation Instructions Model 12248 After carefully reading and understanding the Safety Instructions contained in this manual (pages 3 to 7) and having evaluated your battery as described in Qualifying Your Battery (pages 8 to 10) you are properly prepared to begin using your charger. 1. Attach output cord of charger to either the Battery Clip(s) Assembly (BCA) (supplied) or the Ring Terminal Assembly (RTA) (supplied) depending on your preference.
Model 12248 BatteryMINDer® Correct polarity and a good connection will be your reward. Attach the BCA to the proper battery posts, clamps or screw terminals, depending on type of battery. ALWAYS connect the negative (Black) clip to a metal grounding point (Negative ground installations such as most modern cars, trucks, boats, RVs, etc.) as far away from battery as possible for maximum safety. Never connect to any type of fuel line.
Model 12248 BatteryMINDer® 4. After selecting battery type, determine the correct charge rate for your particular battery. Small batteries (< 10 AH) should be charged at the 2 Amp setting rate. Larger types (10-30 AH) such as used in motorcycles, PWC, etc. are best charged at the 4 Amp rate setting. For batteries whose capacity rating is greater than 30AH or a fast recharge is needed set charger to the 8 Amp rate. If unsure or recharge time is not important, always choose a low setting (2 or 4 Amp).
Model 12248 BatteryMINDer® Note: If the battery does not have a mini- Volts (YELLOW)) or greater than 11-Volts (GREEN) mum no load OCV (Open Circuit Voltage) 7. After battery has been fully charged, the GREEN of 3 volts, the ERROR LED will light Charge-Float LED Indicator will begin blinking. RED and charger will reject battery.
Model 12248 BatteryMINDer® If battery is not defective it should be able to be fully charged after being restarted. After sufficient time has lapsed the GREEN charge LED Indicator will blink confirming when / if battery is now fully charged. Note: If attempting to charge more than one battery at a time it is very likely the charger will need to be restarted as described in order to completely charge multiple batteries.
Model 12248 BatteryMINDer® INSTRUCTIONS: TEMPERATURE SENSOR Type: ABS-248 (At-the-Battery Sensor) (OPTIONAL) If battery is being charged or maintained in temperatures as low as 32°F to a high of 125°F this sensor must be used. Do NOT modify by extending or shortening the extension cord. Your first choice should be to connect it to the Negative (-) post (clamp or screw) of the battery. This is the best location to sense the temperature of the battery.
Model 12248 BatteryMINDer® Finally, if placing the sensor on the battery in not practical, place it where the ambient temperature the battery is exposed to (surrounded by) can be sensed. When properly installed on the battery, your charger is set to provide your battery with what it needs to out-live and out-perform any similar battery used in the same application-conditions, by a factor of two (2). Temperature has a direct effect on the life of a battery.
Model 12248 BatteryMINDer® The chart below shows the need to regulate the output voltage of the charger to ensure against over or under charging your battery over a wide range of temperatures. Using your At-the-Battery Sensor will accomplish this better than any other known method. AGM Charge and Float Voltages at Various Temperature Ranges** Temp °F Charge Float Optimum Maximum Optimum Maximum Temp °C ≥120 13.60 13.90 12.80 13.00 ≥49 110 – 120 13.80 14.10 12.90 13.
Model 12248 BatteryMINDer® Gel Charge and Float Voltages at Various Temperature Ranges** Temp °F Charge Float Optimum Maximum Optimum Maximum Temp °C ≥120 13.00 13.30 12.80 13.00 ≥49 110 – 120 13.20 13.50 12.90 13.20 44 – 48 100 -109 13.30 13.60 13.00 13.30 38 – 43 90 – 99 13.40 13.70 13.10 13.40 32 – 37 80 – 89 13.50 13.80 13.20 13.50 27 – 31 70 – 79 13.70 14.00 13.40 13.70 21 – 26 60 – 69 13.85 14.15 13.55 13.85 16 - 20 50 – 59 14.00 14.30 13.70 14.
Model 12248 BatteryMINDer® MAINTAINING MULTIPLE BATTERIES BatteryMINDer 12248 maintenance charger Desulphators can be used to maintain up to six (6) 12-volt batteries at a time, providing each battery is fully operational (no dead-dying cells), free of sulphate and meeting the minimum full charge “rested” (see pg. 9) voltage of 2.13 volts / cell, after being fully desulphated.
Model 12248 BatteryMINDer® Battery Configurations 12V +12 VOLT PARALLEL Rev. P-071510 Page 26 + - + TO CHARGER - 6V 6V +- +- 6V 6V +- TO CHARGER - + 12V +- TO CHARGER + Model 12248 12 VOLT @ 2A - 4A - 8A TO CHARGER VDC Electronics, Inc. does not make nor can it supply or recommend, any type of wire harness to connect individual batteries for the purpose of charging them in groups, due to the many battery terminal sizes and configurations that exist.
Model 12248 BatteryMINDer® Troubleshooting - Model 12248 We use the word “Indicator” to mean the various LEDs (Light Emitting Diodes) showing the various faults, modes, and conditions of the battery and / or charger. The words “unit”, “charger” or “recharger” means your model 12248 BatteryMINDer Problem: Power ON indicator does not light Solution: Check electrical outlet. If controlled by a wall switch be sure switch is on and try to prevent accidental shutting it off while charger is working.
Model 12248 BatteryMINDer® and must stay connected to charger and remain in Maintenance-Float mode (GREEN blinking indicator) for 72 hours or longer. Then stop charger by pressing Stop/ Restart button and observe Indicator. If still YELLOW repeat (up to 3 full cycles) or until indicator lights GREEN. Problem: Battery Condition Indicator lights YELLOW (May be several causes) (Before battery is completely charged) Solution: Battery can be weak due to sulphation, self discharge or was very deeply discharged.
Model 12248 BatteryMINDer® DETAILED SPECIFICATIONS - VDC Model No. 12248 14.1V / 14.4V / 14.6V---2/4/8A MCU controlled H.F. Battery Charger Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Model 12248 BatteryMINDer® DETAILED SPECIFICATIONS - VDC Model No. 12248 (con’t.) • • • • • • • • • • • Charging Output Control Characteristics Charging Flow : Battery condition detect>Soft Start Charge>Bulk Charge>Absorption Charge>Sulphate Check>Float Charge Soft Start Charging Activity conditions: Battery Voltage is over 3 Vdc and less than 10.5Vdc (the charger will start at 2A mode & Gel mode automatically) Soft Start Charging output current control: (2A / 4A / 8A mode) 0.5 / 1 / 2 ±0.
Model 12248 BatteryMINDer® DETAILED SPECIFICATIONS - VDC Model No. 12248 (con’t.) Absorption mode transitions to Float mode conditions in AGM setting: Mode: 1) Charging current 2) 5 Hours Time-out: after 5 Hours unit switches to Float Charge Mode Absorption mode Thermal Runaway Protection: Stops Charging when the second current sample is larger the first current sample (Positive dI/dt) Switch to Float mode in Bulk charge or Absorption mode when Battery type Button is Pressed For 3 Seconds or longer.
Model 12248 BatteryMINDer® DETAILED SPECIFICATIONS - VDC Model No. 12248 (con’t.) Battery sulphation check period (After absorption charge is finished): 10 minutes Unloaded output voltage when battery is disconnected: 0.5 Vdc (max.) Output short-circuit current when battery disconnected: 5mA dc (max.) Battery flow back current (to the charger) when connected to 12V battery, AC Power disconnected: 30 (max.) mA dc Maintenance-Float min. allowable voltage: (before restarting Charge mode) 12.
Model 12248 BatteryMINDer® DETAILED SPECIFICATIONS - VDC Model No. 12248 (con’t.) Transformer Transformer Type: Ferrite core transformer Rising Temperature of Transformer: 80ºC Max.
Model 12248 6OLTAGE BatteryMINDer® Full Time Desulphator 6OLT Full Time Desulphator Gel Mode: 14.1-Volt @ 24ºC AGM Mode:14.6-Volt @ 24ºC Flooded Mode: 14.4-Volt @ 24ºC (with Temperature compensation) 6OLT Bulk Charge Soft Start (0.5A/1A/2A)(2A / 4A / 8A [20 Hours] timer limited) (6 Hours time-out limited) Absorption Charge (5 hours minimum timer Limited) Sulphate Float Charge Check (10 min.) (one hour) #URRENT 6OLT START Float Pulse Charge (PWM) (1A / 2A / 4A Max.
Model 12248 BatteryMINDer® FOR REPAIR OR REPLACEMENT In the event that you believe your product may be defective, you MUST speak to a VDC Electronics technician at 1-800-379-5579 x206 (ET) before proceeding further. If after speaking with our tech support personnel it is necessary to return the unit, you MUST request an RMA number. All returns must be authorized by VDC Electronics.
Model 12248 BatteryMINDer® Guarantee and Warranty NOTE: ALL returns must be authorized by VDC Electronics after speaking to a VDC Electronics technician at 1-800-379-5579 x206 ET. Please see Page 35 for details. Rev.
