You are missing the point. Stock OEM Battery Terminal Connectors are for chit, bad, suck, defective.................. get it yet? It is not a matter of "if" they fail, they all will because they are junk. I do not care how much cleaning you have done to the old crappy azzes battery terminal connectors, they need to go, ASAP!

Do some searches on the H3/H3T Battery Terminal Connectors. Poor connections to the battery cause significant issues in computer controlled vehicles and the H3/H3Ts are known to Gremlins caused by the factory connectors. Just like your problems.

 

what do you think of this SHT301 I like the idea of the volt meter on it.

 

Also can you recommend any terminals from Amazon or Autozone or similar stores? I cant find any stinger terminals local and want to see if this resolves the issue.

 

You have to open the hood to check volts. Too much work for me, I use a simple plug and play.

 

I got mine on ebay 10yrs ago for under $20pair. Still a great price here:>>> Two Stinger Battery Terminals SPT53501 Multiple Output 4/8 AWG Positive/Negative

 

??? What's the voltage inside the cabin? Check auxiliary outlet with a meter or a plug in like I posted above.

 

thanks i just ordered those. If its not the terminals what else should i check?

 

 

after car sitting in freezing cold for about 7 hours 12.6V when i start engine its at 14.7V

 

Tested inside the cabin or at the battery?