WELL I GUESS The title says it all.One passenger side battery has already exploded and I get the feeling ots going to happen again if not corrected. So what would upur diagnosis be?The drivers side battery charges at 12.8v peaking at 13.3 perfect.. now go over to the passenger side battery and I get an insane 18+ volts..
What is going on here? Is this an alternator issue or something else?
Thanks for your time iy is appreciated

 

Do you have a battery isolator? Do you have more than one alternator?

 

No it's a basic stock pickup
nothing g fancy like 2 alternators or stereo systems
and no I do t belive the truck uses N isolator

 

Gotta be something in there somewhere between the batteries then, to account for the difference in voltage. What is output from the alternator itself? (Measured AT the alternator.)

 

Will have to get back with the alt output this evening.

MY COWS ARE CALLING ME
Thank you for your time

 

And they tend to be a bit insistent. Have fun with the cows, let us know what ya find when ya find it.

 

I believe I have read about this issue before, and there was a faulty crossover cable between the two batteries. I believe this crossover cable runs across rad support