Well the Jap Yuasa that came in my '93 YZF750SP, despite long periods of inactivity finally was wrenched out start of 2003 so I put 10 years, but that was so I could fit a smaller AGM to save a kilo which was a decent saving back in the day.
It sat there on the floor for 6 months until the battery in my RF9 failed & I noticed that with a bit of rubber pruning it would fit in that. Now I sold the dirty ol' RF in '09 & I don't think I'd had to replace it. . .
I've been told. Dreaming`s free.
Think I'll go, back to sleep.
Everybody listen, voices in my head
Everybody listen, do yours say, what mine says?