Central to your car’s operation, the battery provides the power that starts and keeps the car going. It also acts to keep the power free of spikes by acting as an electrical filtering device, and provides the minimum electrical power levels required to make sure your car’s electrical devices and systems work correctly. Batteries are temperature-sensitive and a battery’s optimal operating temperature range is 40 to 70 degrees Fahrenheit. Temperature also affects your battery’s charging rate. To compensate for temperature variations during battery charges, car charging circuits include battery temperature sensors. The sensor is positioned on a battery terminal or the case. The battery sensor’s work is simple: if it senses a temperature variation, it orders the battery control module, or the computer control system in a car or truck, to change the charging rate. Let’s say, if the sensor senses the battery is cold, it will request a bigger charge rate from the alternator.
Facts to Note:
Generally, battery temperature should be routinely checked.
The battery temperature sensor check should include the charging rate (terminal deposits), the cables (fraying or bare spots), and of the linkage point (corrosion or deposits).
Correct battery charging may be difficult if high levels of wear are visible.
How to Fix:
The battery is disconnected and detached
The faulty battery temperature sensor is detached
The new battery temperature sensor is fixed and connected
The battery is reinstalled and connected
The vehicle is tested for proper operation of the battery temperature sensor
A battery temperature sensor needs routine upkeep; with regular checks, the battery temperature sensor can last 80,000 to 100,000 miles. If you neglect consistent battery temperature sensor maintenance, you risk shortening the life of the sensor itself and your vehicle’s battery. Overcharging will severely shorten a car battery’s life. If you find corrosion or deposits or bare or frayed wire, swap the battery temperature sensor as quickly as conceivable.
Common symptoms indicating you may need to change the Battery Temperature Sensor:
Irregular charging rates
Low battery voltage
Corrosion or deposits on the battery or sensor connection
Broken or bare sensor cabling
Importance of this service:
Proper battery sensor service is essential to the prolonged existence of your battery and its operation. Normally, your battery will last you about four years. If you fail to replace the battery temperature sensor, you will continue to damage the battery. Continued use of a non-working or damaged battery temperature sensor runs the risk of depleting your car’s battery to the point where it will no longer hold a charge.