[rcwiegand]

Disconnected Carbon alarms and it resolved most of drain issue. House batteries still drained to 9+ volts after sitting two weeks in dry dock with switch off-this used to be the case in less than 24 hours. I will replace hard wired alarms with new ones with internal batteries-like the smoke alarm. Still need to put a amp meter in series at the battery feed to isolate and determine the remaining drain.