Received my 38mm sport band yesterday. Been loving it! Everything except the battery so far. Does all of this sound like normal drain? Woke up at 10AM today, went for a 20 minute run. Battery drained from 100% to 89%. I figured that's ok, had the heart rate monitor on so I expected some drain. Took the watch off when I got back home while I showered. During my quick 5 minute shower it went from 89% to 87%. Thought that was a little strange. It's now just after 12 noon and the watch is down to 70%. Granted I'm still using it heavily because it's brand new, but not constantly. I made a minute phone call from the watch and it dropped from 73% to 70%. Is that normal? Does the battery improve after a few charges? I let it drain down to 0 last night before charging as well. I'm loving the watch so far, but if the quick battery doesn't even get through the day I may have to second guess it...but I really like it and don't want to return! haha Any insight fellow watch users?