I have a BMW model battery charger, for "gel" type batteries, that plugs into accessory plug on side of my K12GT. Dumb question, since I don't want to remove the battery quite just yet for the winter. Will this thing, not only keep it charged up, but protect it from the cold??. I mean, does the charging on maintenance mode, keep the battery warm somehow?. It is getting down to zero (0) "C" to -10 below here now (after being 55 here 2 days ago). I need the battery in to do my electrical projects, really don't want to keep removing and installing.