so i went out for a quick spin to re-torque my lugs on my photoshopped WEDS wheels. had a good time. got home, plugged my car in (battery tender). i checked back a few hrs later, the tender was still showing red = charge.
i checked the voltage at the battery terminals 13.71v which is correct as far as charge voltage, but should've floated within 15min of me plugging it in. i pulled my other tender off my G and hooked it up to my Z. flashed green (80%+ charged) within 5min which was expected, then floated in 15min.
tossed the old tender i was running on my Z (10 yrs old?) and ordered a new one.
for reference, float voltage for the battery tender is roughly around 13.1721343201105428323v.