Modern batteries tend to last well. My 2002 Plus8 had an Odyssey battery when bought. I used a Ctech conditioner when garaged. I used the connector for direct to battery that came with it. The battery lasted 10 years over my ownership but no idea how old before I bought the car. Voltage checks showed it to be dead. Replaced with like battery. I remembered to transfer the screw in terminals from old to new as none came with the battery so check yours before disposing!
The Ctech/battery combo mean5 no problems over 10 years. I recommend direct to battery connection rather than using a 12V auxiliary socket. Better connection integrity.
In the past the most common starting issues on cars I had proved to be earth deterioration. The cars were usually not new and older. Considering Morgans tend to be older then periodic earth checks/cleaning make sense. On my first Mog, a 1993 4/4, I had earth issues. Using a long jumper lead from battery neg to starter cured it so earths maintenance at battery to chassis at the rear and chassis to starter at the front was the solution.
