BFL13 wrote:
You can get away with two of those batteries for the sunnier half of the year. Save the weight of one. You would only exploit having three when there is no solar and lots of furnace time.
EDIT-depending on how it is, you might run planks across the floor joists of the compartment and sit the batts on them instead of where they sag the floor down?
There’s no obvious sag that I can see other than the slight separation on the caulking seam, but i’m worrier ;) The batteries right now sit in the metal frame, but i’m concerned about gradual wear over time.