Apple Watch Ultra 2 Battery Draining Fast - Like 4-5 hours

I just bought an Ultra 2 watch 3 days ago. The battery seems to die very quickly, like 1% every few minutes, which gets me about 4-5 hours until it's completely dead.

I bought from Verizon and the first one I received did this, and I returned it the next day and Verizon replaced as we both thought it was faulty. That was 3 days ago.

Now the second one I have is doing the exact same thing. 4-5 hours at best. It's also slow to charge. For example now, it was 10% 2 hours ago, and now it's just 27% charged.

I followed others advice on this page to turn off certain things on the watch, but did little to nothing.

How can I fix this? I tried to make appointment with the apple store, but they give no options for things like this, unless it needs repair. I just need to know how i need to set up the watch so battery survives to 36 hours like it was advertised. Very frustrating. Please help.