Q: "Why do I have battery problems?"
A: Why wouldn't you?
Any ONE of these can cause slow cranking, starter damage, starter relay damage, starter cable damage, alternator damage or malfunction, low voltage, random spurious fault codes, driveability issues, winch/inverter malfunctions...
The rest of this photo album shows the CORRECT way to replace these terminals. Look for PREV/NEXT at the top Left of this page, or click the album name links, or just keep scrolling down if you're already viewing the whole album.
. Motorcraft F2TZ-14301-B
Negative Battery Cable with body, frame, & block grounds