We are back from a weekend away, having driven the car about 200 miles. The battery us showing 12.9v, ignition off.
I've connected the charger, a "RING" brand device that charges, maintains, repairs and keeps a battery warm in very cold conditions. It is capable of charging at 12A in repair mode.
In maintenance mode it sarges at up to 0.5A.
The battery is new, a Yusa 60Amp device.
There is no tracker or other device and the USB adaptor is unplugged.
When the ignition is off the heated front screen with is partly illuminated for about 10 min before going out.
Also, as soon as the door is opened the footwell lights come on and the seatbelt, hazard flasher and heated screen come on.
The Radio is an Alpine device that does not have any ability to retain station information when disconnected.
Its highly unlikely that there is a battery fault. 12.2 v is a battery roughly half charged so you are saying that the car when switched off uses 30aH in 10 days or a constant drain of 125 ma. Without a radio or tracker and alarm / immobiliser (does it have one?) there should be no drain at all, or to be totally correct just the small internal drain that every lead acid battery has.
Finding what is happening is a tiresome ballsaching exercise involving putting an ammeter on the battery lead whilst in the garage , noting the current flow and then disconnecting various bits of the electrical circuit to see what changes. Personally I couldnt be bothered. I'd simply wire in a trickle charger and plug the car in every few days. For travel abrioad you can get solar chargers that put out that level of power.
The Morgan has lots of quirks - this is just another!
P.S. If you do decide to have a go, I would start with the items you have highlighted. The hazards shouldnt come on when you open a door and neither should the heated screen
