I have the original battery in 2016 MKC Reserve, BXT-47H6. It is in a tight space, hard to check fluid levels. I checked resting voltage after sitting all night and read 12.04 volts, i know this is not the optimal way of checking. Has anyone replaced with a higher cca AGM? Replacement specs group 47 and 48, any experience with these two sizes? Any tips on checking fluid?
I let the MKC sit for a couple of days, popped the hood and if course the welcome and running lights activated. Battery voltage read 11.9 on my volt meter, let it sit for an hour and it recovered to 12.4 volts with no lights on.