13
The charger will charge the battery at approximately 10% of its normal rate (i.e. 4 amps for
a 40 amp charger) until the battery reaches equalize voltage and then the current reduces as
necessary to maintain the battery at that voltage. Three hours after the Equalize cycle begins,
the charger will return to the float mode where the battery can be maintained indefinitely. If
the battery temperature reaches 120 degrees F (50 degrees C) the equalize cycle will end and
the charger output reduced to a very low voltage until the battery cools, and then the charger
will return to the float mode.
Remote Battery Temperature Sensor Installation
The remote battery temperature sensor allows the monitoring of the battery bank so that
the charging profile can be adjusted to optimally charge the battery bank depending on the
temperature of the battery bank. NOTE: The temperature sensor must be used during an
equalize cycle or damage to the battery may occur.
The battery temperature sensor may be installed in many different ways, so long as the sensor
stays in contact with the battery. The preferred method is as follows:
The batteries to be charged will be placed on a platform made of wood. Prior to placing the
batteries on the wooden platform a cavity is hollowed out such that the sensor will fit inside
the cavity and be flush with the battery. Place the sensor inside the cavity facing the proper
way (this is shown on the sensor). Next connect the sensor wiring to the telephone jack
marked “Batt 1” on the side of the unit. Note: If there is only one temperature sensor, it gets
plugged into “Batt 1”. If there is a second temperature sensor, it should be plugged into to the
phone jack labeled “Batt 2”.
Battery Charger Temperature Compensation
The charger is calibrated with the sensor input preset to 77 degrees (25 degrees C). For
example, for a 12V battery, this voltage is 13.6 volts, and 27.2 volts for a 24V battery. See the
specifications for the temperature compensation coefficient.
