Batteries only overheat if they get hot. Stupid simple rule but charger manufactures assssssssssume customers not want to go anywhere near their batteries, ever. So they pick 14.4 And THAT is a car alternator voltage regulator set point!
My WFCO defaults to 13.6 far too soon. And it has 18" lengths of factory wire connected to a Lifeline AGM. WFCO is the YUGO of converters. Yeah. Start a big generator, run it three hours and find your single battery 65-70% charged by a converter that brags it's rated output supplies 65% of the battery's total amp hour output. This is about as GREEN as a wild coal-field fire.
BUT BUT BUT
Converter manufacturer's NEVER get sued for customer negligent overcharging. And that is the hidden REAL GOAL of converter and charger manufacturers.
Efficient? Shirley You Jest
