For a while I’ve been meaning to fit my FIA battery cut out switch and haven’t been bothered. Silly me now I’ve gone and lost the instructions and resitor.
Luckily, found this post on PistonHeads and thought I may share it. And not that I am taking credit, but incase that post/site ever goes away, here’s some diagrams from that post.
Can you quote some cheaper battery cut-off switches for Heavy commercial vehicles