The trucks batteries tried to kill us last night

I usually do, if you’ve got a weak battery, you’ll find it next.

 

Yeah. Batteries are cheap, replace them all, especially going into winter.

 

Yeah, I did when one went bad. Had the rest tested and found out they weren't long for the world either.
Same with my air bags. One went bad and i figured they were probably all made the same day, installed the same day, and had all pulled the same freight.
Sometimes simple logic will spare you from a road call.
Like my old tire story.....TLDR, "dude, you're gonna buy a tire. Now whether you do it on the side of the road or at the tire store is completely up to you. But, one way or another, you're going to buy a new tire."
Choose wisely.

 

Yep. Replace all 4. As others have stated, you’ll have peace of mind, going into winter.

Most likely, a plate broke and is touching the one adjacent to it, which causes a dead short. I just had the same thing happen to mine, early June, after bouncing across Indiana I-70.

 

I would suggest installing a Carbon Monoxide detector in your sleeper

 

Checking the batteries should be a routine part of your pre-trip inspections -- each & every day.

You should be checking them for:

• swells
• smells
• leaks

-- L

 

It wont do much in the case of a battery outgassing. That's just Hydrogen and Oxygen. They are good to have for other reasons, but they won't protect from a battery incident until the truck actually starts to burn.

 

When it smells like you just parked over a septic tank, you got problems

 

You handled it the right way. I would replace all 4, usually when one goes bad, the others are not far behind.