Can battery be replaced on Apple Watch 9?

According to Apple Watch Service & Repair...

"Battery service

We can service the battery in your Apple Watch for a fee. Our warranty doesn’t cover batteries that wear down from normal use.

Your product is eligible for battery service at no additional cost if you have AppleCare+ and your product's battery holds less than 80% of its original capacity."

Yes, but not for several years. Just curious...whiy are you asking this question?

FWIW, the battery replacement is not a "do-it-yourself" option.