Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing Battery replacement-higher charging voltage needed

The original Banner battery served in my +4 2L Duratec MY 2009 unbelievable 14 years. Still functional, but the time for replacement is coming.

The current standard batteries are now all CaCa type (Calcium). This kind of battery needs a higher charging voltage 14,4V - 14,8V. In 2009 the standard usual generator voltage was 13,8V, which was sufficient for the battery types of those times.

However, with 13,8V charging voltage the CaCa battery has problems to get fully charged. It will work also with the original 13,8V, but the life time of the CaCa battery will be considerable reduced.

Did somebody try to adjust the generator's charging voltage to >14,4V with a new voltage regulator or soldering a diode into the regulator circuit to increase the voltage? So far, I couldn’t find a voltage regulator replacement with >14,4V.

Thanks for your comments

Peter