Okay, gonna put a new battery in during my many repairs. I can't recall ever seeing a debate about batteries, so here's your chance. Should I get one from Honda, or get one from Tractor Supply Company. Is there a difference?
Have used the Deka ETX20L for years in my S&S powered V-Twin....this is the same battery that fits the GL1800. Premium AGM, made in USA and has a 1 year warranty. This battery comes ready to install, which means it's fully charged....no filling and charging required.
Suggest you don't buy a cheap battery....buy OEM or better, as described above. JMHO