Operation Of Battery Temp Sensor - Sentry Voyager 12V 60A Installation & Operation Manual

OPERATION of BATTERY TEMPERATURE SENSOR
The temperature sensor allows the charging voltage to be
automatically adjusted depending on the battery and ambient
temperature.
This function increases battery life, by reducing output voltage and current
due to high ambient and/or battery temperature.
This sensor is screwed onto the main battery's positive terminal (a
service/house battery as a general rule). The 2 wires are connected to the
"TEMP SENSOR" connector on the charger board (not polarity sensitive).
The compensation level is around
+/-25mV per °C for a 24V battery and between +/-12mV per °C for a 12V
battery (see curves below).
Reference voltage
Battery temperature in °C
The temperature sensor initially simulates a temperature of 77⁰F (25°C). The action of the
battery temperature sensor allows the charge to be adjusted, upwards or downwards,
depending on the battery temperature, i.e.:
+/- 15 mV per °C at 12 V
+/- 30 mV per °C at 24 V
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