VOLVO VNL 2011 Cummins isx won’t crank

Hello guys,
I was on vacay for two months and today when i went to start up my truck, of course batteries were dead. My buddy came to jump start it with big jumper starter and first time when i tried to start it did crank but start to smoke around the batteries somewhere, after that we tried one more time cranked but had no power to start and smoked again, after that truck won’t crank i just hear click. Do you guys have idea what could be the issue ? blown fuse ? wires ? something got burned ?

Any help is welcome!

 

My friend came also with his truck, we ran jumping cables from his truck to my truck and it shows 12.5 but like i said still no crank do you think one battery will make the truck no to crank at all.

 

I do have quick shut off switch. I replaced it 2 years ago because i had the same issues truck sometimes had power sometimes not. Batteries looks okay. Mechanic was cleaning them last time they have like some black stuff around i guess for protection against corrosion

 

Eaton Fuller 13 Speed Manual

 

I replaced all 4 batteries still nothing. I just hear click around starter area