Kisae DMT1230 - Charging Modes and Temperature Compensation; Three-Stage and Two-Stage Charging; Battery Temperature Function; Temperature Compensation Settings

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more than 5 seconds to force the charger into Equalize Mode and it will start equalizing the
flooded battery. Please note: the battery has to be set to ‘Flooded’ battery type in order to have
this function activated.
• During the charger Setup Menu, this button is used to change to the next available setting.
• ‘Silent’ (Fan OFF) mode: During normal operation, Press and hold for more than 3 seconds to
force the fan to turn OFF. ‘Auto’ icon will turn ON. The charger current will reduce to about half
the set current. The unit will go back to normal after 12 hours and with icon turns OFF.
Note: Every time the “INFO“, “NEXT“ and/or “SET“ buttons are pressed, the back light will
illuminate and will automatically turn off after 60 seconds.
Automatic Override Functions
When positive power is applied to the “Ignition” terminal (do not connect to ground), it will force
the charger to connect to CH3 as long as CH3 is within the Voltage range > 12.3V or 24.6V on
a 24V input.
Programming Your Charger
Press and hold the key for longer than 3 seconds to enter charger setting mode and show
function setting. Once new setting is done, press ‘INFO’ again for longer than 3 seconds to exit
the charger setting mode.
Press the key once to keep / save the chosen setting and change the display to show the next
menu to continue with other settings. Note: The selected setting will quickly flash 3 times to
acknowledge the setting.
Press the key to view other available settings.
Understanding the Three-Stage (Mode 3), Two-Stage (Mode 2) Charging
The Three-Stage Charging (Mode 3) has a Bulk, then Absorption and then Float sequence.
During the Bulk stage, the battery accepts the maximum constant current from the charger. In
the Absorption stage, the battery voltage is held to constant voltage and the charging current
will slowly reduce. In Float stage, the charger continuously produces lower constant float
voltage to fully top up and maintain the battery in a fully charged state. The charger will
automatically restart the full charging cycle if it senses the battery bank is discharged to lower
than 12.9V for lead acid batteries and 13.3V for lithium batteries.
Similar to Three-Stage Charging, the Two-Stage Charging (Mode 2) has only Bulk and
Absorption charging stage. Charger will terminate battery charging once it reaches the
Absorption to Float setting. The charger will automatically restart the full charging cycle if it
senses the battery bank is discharged to lower than 12.9V for lead acid batteries and 13.3V for
lithium batteries.
Understanding the Battery Temperature Function
The Battery Temperature Sensor (BTS) is an optional accessory for the charger to protect your
battery and provide better charging voltage accuracy. When the battery temperature sensor is
used, it is highly recommended to be installed on the main battery bank at the negative terminal.
The sensor senses the battery temperature and overrides the manual temperature settings and
makes small adjustments to the charging voltage. If using lithium batteries, leave temp setting
“NOR” (Normal) and leave temp sensor disconnected.
Battery Temperature Compensation
There are three manual battery temperature settings on the unit (‘Lo’, ‘nor’ and ‘hi’). See the
table below for voltage adjustments for temperature compensation. Based on the environment
temperature, set the temperature accordingly. An optional Battery Temperature Sensor (BTS)
that is used to connect to the negative battery of the House Battery is available and it will
automatically adjust the charging voltage based on the measured temperature on the battery
terminal. See more details on the next section.
Temperature
Setting
Recommended
Battery Temperature
Battery Type
Voltage adjustment from
25°C normal setting
Low (Lo)
< 5°C
GEL, Flooded
+0.675V
AGM
+0.525V
Normal (Nor)
> 5°C and < 30°C
GEL, Flooded
0V
AGM
0V
High (HI)
< 30°C
GEL, Flooded
-0.270V
AGM
-0.210V