Battery Temperature Sensor for Solar Charge Controllers
Jaycar's Description of the Battery Temperature Sensor for Solar Charge Controllers
Designed to compensate the charging voltage of PV charge controllers and lead acid battery chargers. It's an integrated circuit temperature sensor, sealed in epoxy to a copper sensor lug that connects to the battery terminal. It has a sensing temperature range of -40° to 100°C. The sensor IC has a sensor gain of 10mV/degree Celsius and it is calibrated with the temperature compensation circuit of our PV charge controllers at 25° at the rate of 20mV per degree of temperature change, for example, a temperature increase of 10° will decrease the charging voltage by 200mV, and a decrease of 10° will increase the charging voltage by 200mV. Suitable for solar charge controllers MP-3129, MP-3722, MP-3724.
* Output voltage at 25°C: 2.98V
* Sensor gain: 10mV/°C
* Impedance: 0.6 ohms
* Max forward current: 10mA
* Max reverse current: 15mA