Engine/Transmission (1994 - 1998) Battery Temperature Sensor - Important?

[TBora]

I just installed new batteries in my 96. The new Walmart batteries came with an optional removeable raised bottom. I used the optional bottom because it would allow more clearance for the hold-down bolts to clear all of the exposed wiring. When I did the installation, I didn't know that there was a temperature sensor to help control the charging rate.



Should I go back and remove the bottom so the sensor can make contact with the battery? The truck will be used in a warm Califorina climate.



Thanks.

 

[Cooker]

I'm pretty sure I used the spacers under mine as well and never thought twice about the sensor.

 

[CToney]

The sensor prevents overheating of the batteries. It will reduce the voltage of the charging systems as the temp rises. When the temp is below 0 my voltage is up well over 14v and closer to 14v the warmer it gets.

 

[TBora]

I'll Probably remove the spacer before summer gets here. I noticed lots of boil-over acid stains on the inner fenders when I replaced the batteries. I don't need to give the batteries another reason to get hot!



Thanks.

 

[Cooker]

The sensor prevents overheating of the batteries. It will reduce the voltage of the charging systems as the temp rises. When the temp is below 0 my voltage is up well over 14v and closer to 14v the warmer it gets.

I have never heard this before. Interesting.



FWIW - I have had spacers under the Wally World batteries of two trucks for a couple years now and have not had any issues.

 

[pete97]

I just put batteries in mine 2 weeks ago from Walmart. I threw the spacers out. The new batteries were the same size as the old ones. Where is the sensor that you are talking about? Pete

 

[TBora]

Where is the sensor that you are talking about? Pete

The sensor is in bottom of the driver's side battery box..... about the size of a 1/2 dollar..... it's spring loaded to press against the battery. Wires run out the bottom of the sensor.