2 Sam's Club batts put in our travel trailer 05/07. Lowest I think I ever pulled them was 11.7 volts. Spent winters outside, charged monthly by the WFCO converter for a couple of days. Getting new ones with the new 5th, but left these on for the guy who bought our old camper. Best I could tell, as of a boondocking trip last fall, they still had around 85% capacity of new.
2003 GMC Serria 2500HD - Lotsa Mods.