Without doubt every single time in the garage the roof is down, unless it's damp/wet in which case it's allowed to fully dry, then dropped.
Allows the car to air, allows the soft-top area between roof and rear seal to dry, runs the roof motor, keeps the hinges and joints moved.
Leaving it down imho has more advantages than disadvanteges and I cite my 2003 on original motor and near perfect roof as an example (albeit with hardtop in Winter).
To the question re chargers - Pointless putting trickle chargers on batteries unless being left for several days and alarmed as 1) car shuts down almost completely after 15 mins if not alarmed 2) altenator will keep it in perfect condition.
Allows the car to air, allows the soft-top area between roof and rear seal to dry, runs the roof motor, keeps the hinges and joints moved.
Leaving it down imho has more advantages than disadvanteges and I cite my 2003 on original motor and near perfect roof as an example (albeit with hardtop in Winter).
To the question re chargers - Pointless putting trickle chargers on batteries unless being left for several days and alarmed as 1) car shuts down almost completely after 15 mins if not alarmed 2) altenator will keep it in perfect condition.