The trads suffer from battery drain as well, my Roadster used to flatten the battery in about 2 weeks. I used to flip the isolator switch on the Aero (under the bonnet on the front of the fuse box) after every run, that stopped the need for constant charging, the battery would stay charged for months with no use.
(the electric windows and radio needed resetting each time, less hassle than charging or a flat battery every time)

As has already been said, there must be an underlying problem with Morgans as My tin top can stand for 2 months outside in all weathers then start first try!!

Ian


2017 Mercedes Benz SLC 200 AMG.
2019 Mercedes Benz GLA 200 AMG
Now Ex-Mogger!