ATPMSD
Active Member
I believe a fully charged AGM battery will read 12.85V, so it sounds like you are reading the charging voltage e.g. the car is not asleep?I'm curious as well, my 12V AGM battery doesn't seem to charge beyond 13.7V but then again my 12V replacement warning has been on over the last 8 months/4K miles.I
AGM Battery: Voltage and SOC/Capacity - Sunon Battery
The end voltage of an AGM battery is critical, because it affects whether the battery is over-discharged. Then how to set the end voltage?
sunonbattery.com