To be clear, it's not the battery, though I'm sure we all wish it was better, but it's the new (super awesome otherwise) Snoopy watch face that's killing the battery prematurely. My watch usually can make it through about a day and half on a non-Snoopy watch face. With Snoopy on it can't make it through the day. If I charge my watch in around 8am it's dead by dawn (💀), meaning when I wake up my watch is dead.
I had to finally give up and switch back to a boring face and now I'm back to getting a day and half. I think the animations play more easily when my wrist moves around. Meaning it's getting false positives that I'm actually looking at my watch so it goes into animation/live view mode. That's just a guess though as I'm not actually looking at my watch to know (see the paradox there 😉).