MRC Super Brain 969 Pro User manual

Super Brain 969 Pro
AC/DC Delta Peak Charger with Dual Output and
Discharge Function
Instruction Manual
Model Rectifier Corporation

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
under12 years of age.
SAFETY CAUTIONS & WARNINGS
1. Never leave the charger unattended when in use.
2. 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.
3. Do not leave the battery inside any product while charging.
4. Place the charger and battery on a solid uncarpeted surface with
good ventilation.
5. Do not charge the battery inside the full-size automobile as
damage to interior can result.
6. 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.
7. 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.
8. The charger is designed to charge 1~8 cells nickel cadmium or
nickel metal hydride batteries. It will also charge Lithium, 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.
9. Discontinue use if charger casing becomes damaged or cracked.
10. Do not use the DC power source of a running full-size automobile
engine.
11. Always disconnect charger from the power source and any battery
when not in use.
12. Adult supervision is recommended for ages 12 and under.
13. If at any time the cooling fan should fail, discontinue use and
return for service.
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Thank you for purchasing MRC’s Super Brain 969 Pro charger. The 969 offers
you the latest technology and many more features over the previous models,
but still at a very affordable price.
I. 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 & NiMH)
•Selectable charge rate with 0.10 amp increments from 0.20 amps to 4.5
amps
•Selectable discharge rate with 0.10 amp increments from 0.20 to 3.0 amps
•Selectable peak threshold in 5mv increments from 5 to 75 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
II. DISPLAY
The in depth displays on the 969 puts a wealth of information at your fingertips.
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A B Discharge
Stop mAh
Cell
Min
Amp
mV
mAh - capacity indicator
Cell - cell number indicator
Min - time indicator
Amp - current indicator
V - voltage indicator
mV - Delta Peak threshold indicator
A - when lit, all functions
refer to Channel A
B - when lit, all
functions refer to
Channel B
Discharge - discharge indicator
charge - charge indicator
Battery status
Solid Stop - indicates channel is idle
Blinking Stop - indicates trickle charge

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III. 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 or 12V DC) to the
charger first. If you use the AC adapter as power supply, the total
charge current cannot be greater than 5A. The AC adapter has thermal
and overload protection. When the adapter is overheated or
overloaded, it will cutoff its output and cause the charge process to
prematurely end.
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 969 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 one 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 changing many settings.
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 Batteries” before selecting charge rate.
6. The 969 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 969 measure it.
7. The 969 will select a conservative peak setting, and it is dependent on
the number of cells in the pack (5mV per cell). While this setting may
be appropriate for NiMH batteries, it may be too low for NiCd batteries.
Press the “Display Select” button until “mV” setting appears on the

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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.
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.
8. The 969 also has the ability to perform a “capacity” charge. By pressing
the “Display Select” button again, you will see a capacity rating (mAH)
displayed. At this point you can enter the capacity to which you wish the
969 to charge. The 969 will not charge above this capacity. However, if
a peak is detected (based on the peak threshold selected) before this
capacity is reached, the 969 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.
9. The 969 has the ability to perform a “timed” charge. Pressing the
“Display Select” will bring you to the timer function (Min). 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 969
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.
10. Once the charging starts, you cannot change settings. If you wish to do
so, please press stop button to stop the channel.
11. During the charge cycle, the voltage, charge rate, power status*, peak
threshold setting, current amount of charge/discharge in mAH, and
charge 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.
12. Charging/discharging can be stopped at any time during the cycle by
pressing the “Start/Stop” button.
13. 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