Quote:

... I consider 13.2 volts the minimum acceptable level for any car or or bike. A weak battery drags your starter and unnecessarily taxes your charge circuit.




A garden-variety AGM in top condition won't hold 13.2 resting voltage for very long. If it can hold 12.6 after 24 hours off of a charger I would call it acceptable.

OP, which battery tender model specifically are you using to charge?