To be fair I have not looked into what constitutes a high performance motor cycle battery.
It could be NiMH or some variation of a lithium Ion battery with internal charge and protection circuits - in which case it might very well last 10 years or more.
There are some pretty amazing battery technologies out now. EverReady has a AA lithium primary cell that last 4 times as long as a standard alkaline battery, and they managed to get its voltage to match 1.5V (lithium cells are normally 2.4V) so it works in just about anything. Primary cells are not rechargeable, but if you have a flash light or camera or GPS unit that you want to use for a long time without having to swap batteries, they are ideal.
Where I live it snows from December to March and we put our bikes away for the winter, either taking the battery off the bike into the house or putting a keeper on it which is another whole thread (the keeper they sell at Walmart costs more than a battery from amazon).
But that is why I asked - my bike is almost totally stock and I have not added anything that will load the electrical system. For me a standard lead acid battery is fine every 3 to 4 years. I was curious where the requirement for these $200 batteries came from, because if the dealers are only selling those, there must be people buying them.
One thing that no one has mentioned - when your battery is weak and the bike will spin over but will not start, you can push-start it down a bit of a slope, Kick it up into second gear, and it will fire 95% of the time. Cranking the starter pulls the weak battery voltage down far enough that the electronic ignition and/or fuel injection (if you have it) will not fire. When you push-start the bike the starter load is not there. Also the perfect indication that you need to replace an old battery.
Last edited by KCW; 10-16-2016 at 08:39 AM.