What he said , I bought an 05 with 8K on the clock a few months ago that had the Yuasa original battery in it . I had a new battery in stock so I replaced it , then I put the original on a battery tender and it's still fine and holding it's charge . Not cheap but they are good batteries . For the bikes I own that sit 99% of the time I buy the cheapest I can find for them and just keep them on a tender .I have tried many moto Bateries and the only one I have ever been satisfied with was the Yuasa Batteries! All my Yuasa batteries have lasted 5+ years minimum! The last one went 8 years!!!
Shorai are good if you live in a warm climate or don't ride in temps below 40f degrees. The cold zaps the amps in the lithium batteries and some chargers will damage them beyond repair.
I bought a Shorai for Australia as my KLR sits for 9 months and every time I came back I needed a new battery ....this time it was fine and a 3 year warranty but it is $$. Heat kills the battery in tropical Australia.