my battery is dying VERY quickly

what is apple doing about this issue? I have a series 4 watch. brand new and was replaced by apple. they could not figure out what to do about my quickly dying battery. I have done everything including turning off background refresh....to removing apps on my watch. ever since iOS 13, I have to take my watch off and recharge it by mid afternoon. it lasts only 6-9 hours depending on what I do. even when it sets off of the charger, and not worn or used , the battery quickly dies. has anyone heard if apple is admitting that there is a problem and addressing it?. I called support and jumped through all kinds of hoops to address the issue but they never admitted that there has been a problem since the update. input welcomed... have unpaired it an paired it...I have done everything.