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PREPARATION OF THE BATTERY
For non-sealed lead-acid batteries: Inspect the liquid levels in each cell and top up if necessary, using deionized or distilled
water. To allow any gas formed the cell caps should be replaced but not tightened until charging is complete.
2. BATTERY CONNECTIONS
To avoid sparks which could cause an explosion, the mains supply should always be disconnected before
making or breaking battery connections. Connect the battery clips to the battery in the following order:
Connect the positive charging lead (RED) to the positive post of the battery ( / +ve or P).
For batteries still installed in the vehicle:
Connect the negative charging lead (BLACK) to the vehicle
chassis, well away from the battery, fuel line, and hot or moving parts.
For batteries removed from the vehicle:
Connect the negative charging lead (BLACK) to the negative post
of the battery (marked - / -ve or N).
After connecting the clips, rotate them slightly so as to remove any dirt or oxidization, thus ensuring a good
contact.
3. MAINS CONNECTION - CHARGING
WARNING! DO NOT ATTEMPT TO START THE VEHICLE WITH THE CHARGER CONNECTED. THIS MAY
DAMAGE YOUR BATTERY CHARGER.
Connect the charger to AC outlet and Switch on the mains power supply. Providing the battery is in an
acceptable condition the charge cycle wi
ll now commence and the LED’s will show charging information.
If the charger does not detect a properly connected battery, the red LED will flash until such a battery is
detected. Charging will not begin while the flashing red LED is on. When the charging begins, the Charging red
LED will be lit steady.
When the battery is fully charged, the charger will switch to provide a maintenance charge and may be left
connected to the battery.
Automatic - Processor Controlled 4 step charging program:
Stage 1 -
Diagnosis: Analysis the battery can accept charge or not, prevent charging from proceeding on the a defective battery;
Stage 2 -
Bulk Mode (Constant Current): Fast speed charging, battery is 0% to 85% charged;
Stage 3
- Absorption Mode (Constant Voltage): Absorption to voltage 14.6V, battery is 85%to100% charged;
Stage 4
- Storage/Float maintenance mode: Automatic On-off Monitoring. The charger dc output will shut off and monitor a fully charged
battery. If the battery falls below 12.8VDC, the charger will restart and enter into stage one.
4.
Disconnection
Switch off the mains supply and unplug the charger.
Disconnect the clips, Negative (BLACK lead)
–ve first, followed by the Positive (Red lead) +ve.
If the battery has been removed for charging, replace it and re-connect the cables.
FEATURES:
MP7402 is a fully automatic Micro Processor Controlled maintenance charger with indicator LED. The charge rate is 12V 500mA
The following describes LED Status Indicator light operation
:
If the light is not lit, then the battery is not properly connected and /or the charger is not plugged into AC power.
RED LIGHT FLASHING
The red light flashing indicates that the battery charger has AC power available and that the
microprocessor is functioning properly, if the red light continues to flash, then either the battery
voltage is too low (Less than 2.0 Volts) or the output alligator clips or ring terminals are not
connected correctly;
RED LIGHT ON STEADY
Whenever the red light is on steady, a battery is connected properly and the charger is
charging the battery. The red light will remain on until the charger completes the charging
stage.
GREEN LIGHT
FLASHING
GREEN LIGHT STEADY
When the green light is flashing, the battery is greater than 80% charged and may be removed
from the charger and used if necessary. Whenever possible, leave the battery on charger until
the green light is solid.
When the green light burns steady, the charger is complete and the battery can be returned to
service if necessary. It can also stay connected to maintain the battery for an indefinite period
of time.
Protection Features:
*Short circuit, open circuit, spark proof;
*Overheating
*over current & overcharge.