Originally Posted by Capthead
I lived in a marina for 30 years and we has derelict boats with no batteries that sat there for years. If you go chasing "IF'S" you will have a long day. Still 34 years later we don't get that many sinking boats. Good maintenance is the best insurance.
My T105's are 6 years old and still running strong. My charger must be very smart. I see zero advantage in not keeping the charger on. Your batteries may last a little longer than mine but the $ savings is negligible.