My 2009 4/4 was left for a few weeks without charging which drained the battery completely. I was a bit surprised that it went that fast despite having a brand new battery.
I checked whether there is a 'parasitic drain' somewhere, often this is a trunk light or an interior light that is not switched off. Well, the Morgan has neither of them, so it must be something else.
In my car there is a constant current of ~200mA through the fuse of the engine management. This is definitly enough to drain the battery over time.
So I also installed a CTEC extension plug behind the seat that allows a comfortable trickle charge.
Wolfgang
