I've been running the OBD2 connection on my Battery Tender for about a year and a half now without issue.That thing gives me anxiety. Pushing current the opposite direction as intended long-term through a communications port just seems like a bad idea. It's one thing for a quick battery disconnect or swap, but for extended periods unattended I'd just do it right with a maintainer.
Interesting, what brand is it?I've been running the OBD2 connection on my Battery Tender for about a year and a half now without issue.
Battery Tender.Interesting, what brand is it?