Jump to content

Temp sensor on new batteries


Recommended Posts

So my inverter started to act a little strange showing fluctuating state of charge on the house batteries. 

Previously when I had tested how long I might expect the batteries to last with the New Samsung installed it looked like ~8 hours.   I am now on a trip doing some overnighting without hookups and last night it was cool enough not to run the generator but the inverter kicked off in less then 5 hours, not sure when but when I got up to check it had already kicked off. 

Also, after driving all day the inverter display only showed 73% charged and I know my alternator was putting out +14 volts. 

So I did some checking today and sure enough, one of my batteries was not holding a charge.  But luckily I decided to stop at a Sam's club and they had 4 batteries in stock and installed them for me. 

I had to pry the temperature sensor off the side of one battery.  For now I have it laying off to the side.  I know there's been discussion on using the temp sensor and not using it.  What is the current thought on this and if I decide not to use it do I need to do anything to the Xantrex/Trace RV2012 inverter. 

Link to comment
Share on other sites

I haven’t heard of a temp sensor on batteries be charged by an alternator that has a voltage regulator, but that doesn’t mean it’s wrong. I have however used one on my solar charge controller on a previous coach. 

Link to comment
Share on other sites

I've run the inverter both with and without a temp sensor.  If you have it already there, just push it in-between two batteries or tape it to the side.  

If you decide to update your inverter to a Magnum your batteries will last a little longer.  

Link to comment
Share on other sites

16 minutes ago, tmw188 said:

I haven’t heard of a temp sensor on batteries be charged by an alternator that has a voltage regulator, but that doesn’t mean it’s wrong. I have however used one on my solar charge controller on a previous coach. 

The Temp Sensor is for the inverter, which uses the reading to regulate state of charge.

Link to comment
Share on other sites

The temp sensor controls the battery charger (or solar controller) so it can charge as fast as possible without destroying the batteries buy overheating. I would recommend reconnecting to the new batteries. 

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...