User Manual

CHARGE - TEST Mode:
The CHARGE-TEST mode tests the present capacity of a
rechargeable battery. The maximum capacity is determined
by first fully charging the battery, then discharging the
battery while measuring discharge current and time. The
battery is then charged to full. After completion of the
CHARGE-TEST mode, tested battery capacity is displayed
in mAh or AH alternating with the FULL indication.
Charge - Test Example: Insert battery into a slot. Press
the MODE button until CHARGE - TEST is displayed in
that channel. Press the CURRENT button to select 200,
300, 500, 700, 1000, (1500 or 2000) charge rate. If
CURRENT button is not pressed the current will
automatically default to 500 mA.
QUICK TEST Mode:
The charger will analyze the dynamic internal battery
resistance by applying a load current and this current
reading is referred to the voltage drop detected on the
battery. Within 10 seconds the tested battery resistance will
be displayed in the unit of milliohms (thousandths of an
ohm). Only fully charged batteries should be tested for
internal resistance. Please note that the internal battery
resistance can be very small, and contact resistance can
be a major factor; thus with the same battery tested in a
different slot or even in the same slot with different contact
conditions, measurements can vary by 20% or more.
Quick Test Example: Insert battery into a slot. Press
the MODE button until QUICK TEST is displayed in that
channel. This symbol will appear in that channel -- --.
Wait for a number or numbers to appear in place of the
symbol -- --; this may take 30 seconds or longer. This
will be the battery internal resistance in milliohms. A
reading of 55 represents 55 milliohms or 0.055 ohms.
CURRENT Selection
After the Mode is selected press the CURRENT button to
toggle between available charge/discharge current selections.
Default charge current is 500 mA. Available selections are
200 mA, 300 mA, 500 mA, 700mA, 1000 mA. If batteries are
inserted in only slots 1 and 4 the charging current can be
further selected to 1500 mA or 2000 mA for channels 1 or 4. If
charge current is selected to 1500 mA or 2000 mA for
channels 1 or 4 and batteries are then inserted into slots 2
and 3, the charge current in slots 1 or 4 will be reduced to
1000 mA maximum.
Default discharge current is 500 mA. Available current
selections are 200 mA, 300 mA, 500 mA and 700 mA for
NiMH or NiCd cells. Further 1000 mA may be selected for
Li-ion cells.
DISPLAY Selection
LCD Display Backlight Control. Press and hold the DISPLAY
button for more than 5 seconds to toggle the backlight mode.
To turn on the LCD Display Backlight press and hold the
DISPLAY button for more than 5 seconds. The backlight will
remain on continuously.
To return the LCD Display Backlight control to auto-off
(backlight turns off after 30 seconds of no button press) press
and hold the DISPLAY button for more than 5 seconds.
Press the DISPLAY button to toggle among the display
parameters Voltage, Current, Capacity and Time.
 Charge/Discharge Current: the instantaneous current is
displayed.
 Time Elapsed: The charging/discharging time of the last
cycle is displayed.
 Accumulated Capacity: The accumulated charge or
discharge capacity is displayed in mAh or Ah.
 Voltage: The instantaneous battery voltage is displayed.
 Quick Test: displays the measured internal battery
resistance in milliohms.
 Full: Battery full charge detected. FULL will flash in the
display when full charge is detected. After the
rechargeable battery is fully charged maintenance
charging will be started automatically for NiMH/NiCd
batteries. Maintenance charging prevents the
rechargeable batteries from being overcharged when left
in the charger and compensates for self-discharging of
the batteries. After Li-ion rechargeable battery is fully
charged then charge is terminated.
SLOT Selection.
Pressing the SLOT button will start the slot selection process
in the sequence; Slot 1, Slot 2, Slot 3, Slot 4, All 4 Slots, Exit.
Flashing display segment indicates slot selection. If all four
display slot segments are flashing, this indicates all four slots
selected. Mode and Current selection will then be for the
selected slots.
Temperature Monitoring
Battery temperature and charger internal temperature are
monitored during operation. Control board temperature is
maintained within operational limits with cooling fan control.
When control board temperature exceeds 40 degrees
Celsius the cooling fan is activated. Battery temperature of
60 degrees Celsius will cause charge operation to be
suspended. During suspended operation due to temperature
limit "0 mA" will be displayed in the LCD digital display.
Maintenance
The device is maintenance free but should be cleaned
occasionally. When cleaning, the device must be removed
from any power source. Only use dry and soft cloth to clean
the housing of the charger. Do not use abrasive or solvents.
Repairs may only be performed by authorized repair stations.
Any repair or modification not performed by an authorized
repair station voids the manufacturer's warranty.