Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. How Long Does a Battery Temperature Sensor Last?

How Long Does a Battery Temperature Sensor Last?

battery temperature sensor

Most people fail to realize just how sensitive the charging system on their car is. If all of the components of your charging system are not working properly, then it will be nearly impossible to crank and run the vehicle. The battery temperature sensor is a very important piece of the charging system. A battery runs best when it is between 40 and 70 degrees. The battery temperature sensor helps to tell the engine computer when a bit more power is needed from the alternator during colder weather. This sensor is located on the battery terminal and is used every time the car is running.

The sensors on a car are supposed to last the life of the engine, but this is not always the case. The heat that is produced by your engine can produce a lot of problem for the sensors on a car. The battery temperature sensor is constantly reading what the temperature is, which means that it can overwork itself and damage the vital components that it needs to run.

Generally, the battery should be inspected on a routine basis to ensure that there are no issues. Since the battery temperature sensor is located on the positive battery cable, it will be relatively easy to give it a once over to make sure that it looks alright. If there is a lot of corrosion on the positive battery cable, then it may cause issues for the battery temperature sensor due to the connection problems the corrosion presents. The following are some of the things that you may notice when your battery temperature sensor is going bad.

  • The charging rates on the battery seem to be off
  • Consistently low battery voltage
  • The appearance of large amounts of corrosion on the battery and the sensor
  • The sensor has visible damage and exposed cabling

Having a damaged battery temperature sensor can prove to be very problematic for your charging system. Driving your car with a damaged sensor may lead to problems cranking the vehicle when needed. Getting the bad battery temperature sensor replaced as soon as there is a sign of trouble is important in maintaining the functionality of your charging system.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.


More related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...

Related questions

Q: Fans aren't spinning

If the fans were working before the radiator replacement, it's possible a temperature sensor and/or wire were left disconnected or damaged. The O2 sensor should not be unplugged but may not be the cause of the fans not working. I'd...

Q: Q: Charging system failure.

This may suggest a failing voltage regulator. The voltage regulator is a unit that regulates the charging of the battery by the alternator. When the voltage regulator is not working properly, this may result in the alternator allowing too much...

Q: have replaced crankshaft sensor twice in one week? what can be causing this?

In your circumstance, there are a few failure modes that could potentially apply: If the crankshaft has a heavily worn main thrust bearing, the crankshaft will move around and the thin metal plate running through the crank sensor can repeatedly...