I bought my EarthX for my Cafe' bike in 2013...and it is still working fine. I have never put it on any kind of a charger or tender. It holds a charge just fine for the 5 winter months, and the bike starts right up in the spring. My Cafe' bike doesn't have any clock or other gear that uses battery juice when the key is off.
While I am happy with the EarthX, I only spent the extra to get the Lithium for the small size and light weight - if I was replacing a battery in a stock bike.....I would likely just get a quality brand AGM battery.
The next battery that I buy for any stock bike will be this "motocross" brand....it is made the same place that Yuasa batteries are made - in the USA!
https://www.batterystuff.com/blog/motocross-vs-yuasa-which-is-the-better-moto...