BatteryMINDer® INSTRUCTION MANUAL Model 12248-AA BatteryMINDer® Model 12248-AA* Charger / Maintainer / Desulphator-Conditioner VDC Electronics, Inc. 147 D Woodbury Rd. Huntington, NY 11743 www.vdcelectronics.com techsupport@vdcelectronics.com *For use with Aviation Type 12-V Batteries ONLY. Requires proper installation of Battery Temperature Sensor (ABS-248 - supplied) and proper battery type selection. READ AND SAVE THESE INSTRUCTIONS Rev. C-020907 Rev.
Model 12248-AA BatteryMINDer® TABLE OF CONTENTS Safety Instructions...................................................................................................................... 3 Preparing To Charge................................................................................................................... 5 Charger Location......................................................................................................................... 5 DC Connection Precautions....................
Model 12248-AA 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-AA 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-AA 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-AA 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-AA 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 AIRCRAFT OR EQUIPMENT. A SPARK NEAR THE BATTERY MAY CAUSE BATTERY EXPLOSION. TO REDUCE RISK OF A SPARK NEAR BATTERY: a.
Model 12248-AA 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-AA 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-AA 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-AA 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. 2. Measure battery’s voltage, without any load attached. If the voltage is less than 12.4 volts (Typically 50% of charge) the battery may be too heavily sulphated to be fully recoverable. If voltage is 12.
Model 12248-AA BatteryMINDer® 3 11 12 2 1 10 7 8 6 1) 2) 3) 4) 5) 6) 7) 9 Battery clip cordset w/ qwik connect plug (pgs.13, 16) Ring terminal cordset w/ qwik connect plug (pgs. 13, 16) Mounting tabs Input power cordset (pg. 13, 18) Output cord w/ qwik connect plug (pg. 13, 16) Temperature sensor input connector (pg. 17) Charge rate selection button (pgs. 13, 17, 18) Rev. C-020907 4 5 8) Battery type selection button (pgs. 13, 17, 18) 9) Start / reset selection button (pgs.
Model 12248-AA BatteryMINDer® 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. 2-a: Attach temperature sensor ABS-248 to battery and then to charger*. 3.
Model 12248-AA BatteryMINDer® LED INDICATOR FUNCTIONS -- Tables 3 (top) and 4 A&B (bottom) Battery Condition Indication Battery connected before charge:Vb<11V Vb>11V YELLOW GREEN If pressing Reset Button in the charging stage STOPS CHARGING AND ALLOWS RESET OF ALL SELECTIONS Battery sulphation checked: Battery sulphation checked: Vb<11V YELLOW Vb>11V GREEN Vb<12.5V* YELLOW Vb>12.5V* GREEN *12.75V for Gel battery. *12.75-V for AGM battery setting. 12.
Model 12248-AA 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 9LL=JQ'#( =J ¸ Charger / Maintainer / U.S. Patents: 5783929 & 6078166 Full Time De-Sulfator - Conditioner 12-Volt @ 8 Amp Green = Power ON ERROR: Model 12248-AA 8A TABLE 5 VDC Electronics, Inc. 800-379-5579 (ET) www.vdcelectronics.
Model 12248-AA BatteryMINDer® Detailed Operation Instructions Model 12248-AA 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 11) 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-AA 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, 3. Determine the type of battery you wish to charge. When certain press the Select Battery Type button. The most common is the Flooded kind, distinguished by removable filler caps (6).
Model 12248-AA 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) 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-AA Note: If the battery does not have a mini- Volts (YELLOW)) or greater than 11-Volts (GREEN) BatteryMINDer® 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. It will RED and charger will reject battery.
Model 12248-AA 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-AA BatteryMINDer® INSTRUCTIONS: TEMPERATURE SENSOR Type: ABS-248 (At-the-Battery Sensor) MANDATORY WHEN CHARGER IS USED WITH Sealed or Maintenance-type Aviation batteries, regardless of construction (Gel, AGM, FreeElectrolyte = filler caps) NOTE: We recommend selecting the AGM setting on models 12248-AA when charging or maintaining Aviation type sealed Valve regulated batteries (AGM, Gel) or flooded maintenance (filler caps) types Congratulations on purchasing the most advanced charger-maintai
Model 12248-AA 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. Installed properly, 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-AA 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 Optimum Charge Optimum Float Temp °C ≥120 13.40 12.45 ≥49 110 – 120 13.60 12.55 43 – 49 100 -110 13.70 12.65 38 – 43 90 – 100 13.80 12.
Model 12248-AA BatteryMINDer® Gel Charge and Float Voltages at Various Temperature Ranges** Temp °F Charge Float Optimum Optimum Temp °C ≥120 12.80 12.8 ≥49 110 – 120 13.00 12.9 43 – 49 100 -110 13.20 13.0 38 – 43 90 – 100 13.50 13.1 32 – 38 80 – 90 13.80 13.2 27 – 32 70 – 80 14.10 13.3 21 – 27 60 – 70 14.30 13.4 16 - 21 50 – 60 14.60 13.5 10 - 16 40 – 50 14.90 13.9 4 - 10 ≤40 15.20 14.2 ≤4 Note: This chart shows the Charge and Float voltage ranges v.
Model 12248-AA BatteryMINDer® MAINTAINING MULTIPLE BATTERIES BatteryMINDer 12248-AA 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-AA BatteryMINDer® ALWAYS test each individual battery to be certain it is healthy and free of sulphate before attempting to charge or maintain them, either as a single battery or in sets. NEVER connect multiple batteries together for charging purposes using less than #18 Gauge insulated wire. VDC Electronics, Inc.
Model 12248-AA BatteryMINDer® Troubleshooting - Model 12248-AA 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-AA 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-AA BatteryMINDer® 3. If recharging multiple batteries, 2 or more complete recharge cycles may be needed. Repeat full recharge by pressing START button again. If still RED-blinking, you may need to charge each battery separately. tion. If still YELLOW follow procedure for (After battery has been completely charged.
Model 12248-AA BatteryMINDer® DETAILED SPECIFICATIONS - VDC Model No. 12248-AA 14.1V / 14.4V / 14.1V---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-AA BatteryMINDer® DETAILED SPECIFICATIONS - VDC Model No. 12248-AA (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-AA BatteryMINDer® DETAILED SPECIFICATIONS - VDC Model No. 12248-AA (con’t.
Model 12248-AA BatteryMINDer® DETAILED SPECIFICATIONS - VDC Model No. 12248-AA (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.
Model 12248-AA BatteryMINDer® DETAILED SPECIFICATIONS - VDC Model No. 12248-AA (con’t.) Transformer Transformer Type: Ferrite core transformer Rising Temperature of Transformer: 80ºC Max.
Model 12248-AA 6OLTAGE BatteryMINDer® Full Time Desulphator 6OLT Full Time Desulphator Gel Mode: 14.1-Volt @ 24ºC AGM Mode:14.1-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) Sulphate Float Charge Check (10 min.) (one hour) Absorption Charge (5 hours minimum timer Limited) #URRENT 6OLT START Float Pulse Charge (PWM) (1A / 2A / 4A Max.
Model 12248-AA 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-AA 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.
