Thanks for the great info guys!

Nelrod~ That's my girl Harley..5yrs old and 220 lbs of mushy sweetness lol
I also have a male apricot named Trucker ( full show name Lacelles Big Mudder Trucker) lol he is not even 2 and already 230 and growing. Incredible dogs..gentle and so laid-back.
Friends have a cane corso..sweet just more active.

 

I had the same issue, it was a bad connection on the crossover cable coming from the passenger battery to the driver side battery.

 

x2, driving down the road the other day and big explosion under the hood, litteraly shook the truck. pulled over and passenger side battery was in pieces. Had been smelling rotten eggs for about a week and thought it was the cat, I was wrong

 

AS said before replace both of them at the same time!!!