Got long life out of a Yuasa battery

[_Sheffjs_]

Looks like Doug marked the year of the battery as 2012 - it still cranks but not enough to fire -

[Squirrel]

I recently bought a Yuasa battery for my Goldwing trike.  After purchasing, I was talking to a guy who doesn't like them.  One thing he said was if they ever go completely dead, they will not charge back up!  I just hope mine never goes completely dead.  Lol

[Thunderbolt]

I always had good luck with Yuasa batteries.  Any battery that you "kill" will never be worth it's salt so to speak after that event.  As I understand it the lifespan is diminished if it gets to 50% or lower of it's capacity. 
I recently installed 6 Lithium Iron Phosphate 100A batteries in the 5th wheel as well as 5-320W solar panels on the roof and a charge controller configured to handle the power.  These are not the type that you hear about that catch things on fire like in E cigarettes or the kind that is in a drone/quadcopter.  You definitely don't want to disassemble one of those as in punch a hole with a pocket knife like somone I know did. They will catch fire and you have to throw them out the door........All this to dry camp or boondock as they call it.  If you could get a battery in the YTX-14 size made from the same cells it would be much lighter and you can actually take them down to zero and just charge it back up with no damage.