Super Brain 977 Manual - Model Rectifier Corporation
Contents
1. Super Brain 977 AC DC Charger with Dual Output and Discharge Function User s Manual Model Rectifier Corporation 80 Newfield Avenue Edison NJ 08837 3817 Phone 732 225 6360 www modelrectifier com Please read this entire manual including all Safety Cautions and Warnings before operating this charger Never leave charger unattended when in use Adult supervision required for children under 12 years of age SAFETY CAUTIONS amp WARNINGS Never leave the charger unattended when in use Do not connect the unit to the DC power supply while there is a battery attached to the unit You should disconnect the battery first and then connect the unit to DC power supply Do not leave the battery inside any product while charging Place the charger and battery on a solid uncarpeted surface with good ventilation Do not charge the battery inside the full size automobile as damage to interior can result Battery damage can occur if the charge current Amps rate is set too high Different capacity batteries may require a higher or lower charge rate Follow the Notes on Charging Batteries in addition to battery manufacturer s instructions If the battery or the charger becomes extremely hot immediately disconnect the charger from the power source and allow the battery and charger to cool The charger is designed to charge 1 9 cells nickel cadmium or nickel metal hydride batteries It will also charge Lith2. 2 volt NiMH battery use a value of 30mV 7 2 volt batteries have 6 cells in them 6 cells x 5mV 30mV For NiCd batteries you can use a value of 7 to 10mV per cell Just remember too high a value may cause overcharging and too low value may cause undercharge Charge Rates NiCd and NiMH What about charge rates amp setting For NiCd batteries you can use a maximum charge rate of capacity times 3 for sub C or larger cells and capacity times 2 for AA cells or smaller For NiMh use maximum charge rate of capacity times 2 For example a 1500mAh NiCd can be charged at 4 5 Amps 1500mAh x 3 4500mAh or 4 5 Amps For new batteries a lower charge rate is better Capacity 2 would be appropriate For example a new 3000mAh NiMH would have an initial charge of 1 5 Amps 3000mAh 2 1500 mAh or 1 5 Amps B CHARGING LITHIUMION POLYMER BATTERIES Never leave batteries unattended when charging Monitor the temperature of the battery occasionally during the charge cycle If batteries become hot or voltage exceeds 4 20 volts per cell disconnect immediately Lithium batteries contain explosive material Because of the volatile nature of Lithium batteries great care must be taken when charging these cells If improperly or overcharged there is the risk that the battery will explode or catch fire Please follow instructions and or recommendations from the battery manufacturer when selecting proper charge rate 1 We recommend that you use
3. Selectable charge rate with 0 10 Amp increments from 0 20 Amps to 5 0 Amps Selectable discharge rate with 0 10 Amp increments from 0 20 to 4 0 Amps Selectable peak threshold in 5mV increments from 5 to 50 mV Cooling fan keeps components cool for continuous charging 12 bit Analog to Digital converter greatly improves measurement resolution Digital Signal Processing filters out noise and provides better measurement accuracy MRC s patented MicroPeak technology keeps batteries cooler DISPLAY The in depth displays on the 977 puts a wealth of information at your fingertips A when lit all functions refer to Channel A Discharge discharge indicator B when lit all charge charge indicator functions refer to Channel B e mAh capacity indicator Aura 3 B Discharge mAh Cell cell number indicator used for Uhl A ae Stop Cell NiCd and NiMH batteries only 7 l 1 Min Min time indicator I e I _ Amp Amp current indicator mV Ty voltage indicator Battery status mV Delta Peak threshold indicator Solid Stop indicates channel is idle m Blinking Stop indicates trickle charge Ill OPERATION A CHARGING NICKEL CADMIUM NICD AND NICKEL METAL HYDRIDE NIMH BATTERIES ONLY Never leave charger unattended when in use The unit has two channels and can handle two batteries at the same time However the LCD only displays one channel at a time 1 Always connect the power source 120V AC adapter
4. a charge rate of no higher than 1C For example for a 1600mAh battery the charge current should be no greater than 1 6 Amps Read your battery s instruction to find the right charge current 2 You must enter the cell number of your Lithium battery pack Enter one cell for 3 7 V battery Enter two cells for 7 4 V battery Enter three cells for 11 1 V battery 3 You must plug in the battery before enter the cell number and press Start 4 After starting the charge process press Display Select button to make sure that the word LiPo appears on the cell screen When charging a Lithium battery never leave the battery unattended Never allow the battery voltage to exceed 4 20 volts per cell C CHARGING 12V LEAD ACID OR GEL CELL BATTERY Never leave charger unattended when in use We recommend using a charge rate of no higher than 0 2 times the capacity of the battery example for 7AH battery the charge rate 0 2 x 7 or 1 4 Amps D DISCHARGING BATTERIES The 977 has a built in discharge feature in it You can discharge your batteries on Channel A only When discharging Lithium batteries do not enter the cell number Once a battery is connected to the charger and the voltage is displayed you can select the discharge function by hitting the Discharge button You can only switch between charge and discharge when the unit displays the voltage in channel A You can then select the discharge rate you wish to use in the same
5. the unit will take the value as capacity limit The 977 will not charge above this capacity However if a peak is detected based on the peak threshold selected before this capacity is reached the 977 will terminate the fast charge cycle After the charge discharge cycle is started this display will show the amount of charge discharge in mAh If you wish to perform a normal peak charge entering the battery s capacity is not necessary Only change if you wish to perform a capacity charge The 977 has the ability to perform a timed charge Pressing the Display Select will bring you to the timer function Min with two bars Here you can predetermine the length of the charge cycle in minutes As with the capacity charge if a peak is detected before the selected time the 977 will terminate the fast charge cycle After the charge discharge cycle is initiated this display will show the elapsed time of the cycle Press the Start button at any time to begin charging discharging If you wish to perform a normal peak charge entering the length of charge time is not necessary Only change if you wish to perform a timed charge Once the charging starts you cannot change settings If you wish to do so please press the Stop button to stop the channel you are currently operating During the charge cycle the voltage charge rate power status peak threshold setting current amount of charge discharge in Amp and ch
6. arge time can be viewed by pressing the Display Select button Power status is the amount of available power out of 100 that the selected channel is currently utilizing If power status shows 100 this is an indication that the displayed charge current is the maximum current that the charger can provide for that particular battery This will happen when you charge 9 cells battery with 5Amp setting The real current will be far below 5Amp Charging discharging can be stopped at any time during the cycle by pressing the Start Stop button When the fast charge discharge cycle is complete the unit will beep once and the word stop will blink on the screen At this time you can scroll through the displays to check the finishing values mentioned above such 3 as time Min and capacity mAh If in the charge mode a 50 minute 50 80mA trickle charge will begin After the trickle cycle the charger will automatically go into sleep mode Press the Start Stop button to reset the charger There is no trickle cycle after discharging 14 If the battery is disconnected or a bad connection occurs at any time during the cycle or before the charger is reset an ERR message will be displayed 15 Once the Stop button is pressed and the channel is reset all settings of the channel and information will be erased except for the current Amp setting Notes on Charging Batteries NiCd and NiMH The SuperBrain 977
7. charger you just purchased is considered a Delta Peak Charger You may ask What is Delta Peak or What is Delta Peak Threshold Delta is a scientific way of saying change in As you charge your battery you may notice that the voltage is consistently climbing The 977 is constantly monitoring your batteries voltage looking for a peak voltage Every battery has a peak voltage and when the battery reaches its peak it will start to drop off a little or start to lose voltage This is what the 977 is looking for that small amount of drop in the peak voltage This is what tells the charger that the battery is fully charged Peak Threshold Settings NiCd and NiMH While the 977 is capable of selecting the appropriate Peak Threshold which is somewhat conservative for NiCd batteries you can manually set the peak threshold for each battery This is the mV setting on the 977 If you set a higher value this makes the 977 less sensitive a lower value more sensitive If you use too high of a value you risk over charging your battery and damage may occur If you set too low a value you may under charge a battery or get false peaks and it will not be charged to its full capacity What values should I use you ask The peak threshold setting depends on the type of battery being charged and the number of cells in that battery For NiMH battery you want to use a value of 5mV per cell So for instance when charging a 7
8. ies before selecting charge rate 6 The 977 can determine the number of cells in the pack you are charging This is based on the voltage and time curve of the battery when connected to the output leads The initial cell number displayed may be incorrect However the final cell number reading will be correct To speed up the test procedure you can simply input the number of cells instead of letting the 977 measure it 7 The 977 will select a peak setting based on the number of cells in the pack 5mV per cell While this setting may be appropriate for NIMH batteries it may be too conservative for NiCd batteries Press the Display Select button until mV setting appears on the screen then press the or button to select the appropriate peak voltage threshold Please refer to the Notes on Charging Batteries section for the appropriate settings 8 10 11 12 13 Once the Delta Peak threshold is set manually the charger will use this setting even if it is not an appropriate setting for the battery Please follow the included recommendation on peak threshold settings Damage to the battery can occur if you are not careful The 977 also has the ability to perform a capacity charge By pressing the Display Select button again you will see mAh displayed with two bars At this point you can enter the capacity to which you wish the 977 to charge by pressing or Once you press or
9. ium lead acid gel cell batteries Because of the volatile nature of Lithium batteries great care must be taken when charging these cells If improperly or over charged there is the risk that the battery will explode or catch fire Please follow instructions recommendations from battery manufacturer when selecting proper charge rate Discontinue use if charger casing becomes damaged or cracked Do not use the DC power source of a full size automobile when the motor is running Always disconnect charger from the power source and any battery when not in use Adult supervision is required for ages 12 and under If at any time the cooling fan should fail discontinue use and return for service Thank you for purchasing MRC s Super Brain 977 Pro charger The 977 offers you the latest technology and many more features over the previous models but still at a very affordable price FEATURES AC DC Delta Peak charger with dual independent outputs Discharge function allows you to get the most out of your batteries Charge two batteries at the same time even if they are different voltages and or battery types Charge and discharge at the same time discharge on channel A only Charges NiCd NiMH Lithium and Lead Acid Large LCD screen shows Battery Status Battery Voltage Charge Rate Peak Threshold in mV Capacity in mAh Number of Cells in Pack Time in Minutes For 1 8 cells any capacity battery NiCd amp NiMH
10. nput Channel B e Charge only for 1 to 8 cells e Current rate from 0 20 to 5 0 Amps Channel B 1 cell 2 cells 3 cells 4 cells 5 cells 6 cells 7 cells 8 cells Max pnarag 2 0Amp 2 5Amp 3 0Amp 3 5Amp 4 0Amp 5 0Amp 5 0Amp 5 0Amp Note Need higher than 12V DC input VI COOLING FAN RB977 power supply is equipped with a temperature controlled cooling fan It only operates under heavy load SERVICE RETURN PROCEDURE If it should be necessary to return the charger for service please include a letter printed clearly with your name address a daytime phone number and a detailed description of the problem you are experiencing Please include 9 00 to cover the return shipping and handling cost MRC will not accept any charger for repair that has been modified in any way Vil Send to Attn Parts amp Service Model Rectifier Corporation 80 Newfield Avenue Edison NJ 08837 3817 2005 Model Rectifier Corporation Printed in China
11. or 12V DC to the charger first The AC adapter has thermal and overload protection When the adapter is overheated or overloaded it will cutoff its output RB977 power supply is equipped with a tempreature controlled cooling fan It only operates under heavy load 2 Attach the battery to one of the outputs on the charger The battery s voltage will appear on the screen If the battery voltage reading is zero check the polarity of the battery connection The 977 will not charge or discharge a battery having zero reading in voltage At this point if you are operating on channel A you can select charge or discharge by pressing charge or discharge button You can select charge or discharge only when the voltage is displayed during setting 3 If you want to use both channels you should finish both channel s settings before starting either channel This will make the setting process faster Once one channel is running the charger will only take one setting command per second for the other channel This is slow if you are making many setting changes 4 Select the appropriate channel output you wish to operate by pressing the A B select button 5 The charge current can be changed by pressing the Display Select button to select the Amp display and then pressing the or button to select the Amps setting WARNING Consult battery manufacturer s instructions or included section Notes on Charging Batter
12. way you would select the charge rate The maximum discharge rate available is 4 00 Amps You can then hit the Start button to start the discharge process You can also discharge on Channel A while you are charging on Channel B E TESTING BATTERY CAPACITY You can test your battery pack s capacity compared to the rated capacity of the pack Simply discharge the battery first and then charge battery using the recommended settings from above Then discharge your batteries using a discharge rate of rated capacity 5 This will give you a good indication of the condition of your battery IV OPERATIONAL FLOW CHART Press Display Press Display Press Display Press Display Press Display Press Dispaly t t t t t t Press to f Press to Press to change delta change capa change time or discharge ent setting battery cell peak setting city setting setting V MAXIMUM CURRENT The following tables show the maximum charge current amp discharge current Channel A e Charge and discharge ability for 1 to 8 cells e Charge current rate from 0 20 to 5 0 Amps e Discharge current rate from 0 20 to 4 0 Amps Channel A 1 cell 2 cells 3 cells 4 cells 5 cells 6 cells 7 cells 8 cells ghia 2 0Amp 2 5Amp 3 0Amp 3 5Amp 4 0Amp 5 0Amp 5 0Amp 5 0Amp Max 4 0Amp 4 0Amp 4 0Amp 4 0Amp 4 0Amp 4 0Amp 3 0Amp 2 5Amp Note Need higher than 12V DC i
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