True North wrote:
As I. Other years, I just brought the boat battery into the basement. I
charged the battery and then attached a clearance type light to the posts
to run for 30 days...then another charge to start the monthly cycle
again. This will go on for 6 months.


Why would you discharge the battery? Hard on them to deep cycle. I use to
cook the battery with the old type charger, so plugged the charger in to a
wall timer, and took the on pin off the timer, and manually turned on the
timer and it turned off in 12 hours or so. Just attach the charger and
monthly let th charger run for an hour.