cant find parts for big rig

[demongunner27]

so i have just started playing this game today and after three hours and 125km i have not been able to find the 150 amp battery for the rig. i have stopped at every location looking for one as i have had a engine in my truck since near the start of the game. is the battery just really rare or am i missing something?

[Markus Reese]

I don't think I have ever seen one actually....