Been useing one for a long time . I leave the wire in an awkward place just so I dont start the mog with it plugged in.
Checked the battery last week and had to pop a drop of d/water in one cell.
I use a CTEK through the cigarette lighter socket if the Mog is not driven for more than about two weeks. I do the same with my Elise, and it still has the original battery of 2006, still in good condition.
Andy