Good shout from everyone here. One thing I'd add that hasn't come up yet — check your battery wiring and connections before you start tweaking software settings.
StuCross · 312 posts
@SamWhite AGMs are particularly prone to this in cold weather — the internal resistance increases significantly as temperatures drop, which throws off the voltage-based SOC...
Hey @RM_Marine, sounds like it could be the over-voltage protection kicking in. Ford Transit alternators from that era can spike quite high under certain conditions — I've seen them push past 15V...
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