I've had a series 0 that has been doing just fine. However I've noticed over the last month the battery had been getting shorter and shorter. Now, I'm lucky to get 4 hours before it is totally dead. Example. I left the house at 745am and the watch was at 91% (1 hour workout prior) At 2:15 the watch is totally dead. At one point, I watched it go from 11%- 5% in about 10 minutes. 5-4% happened while looking at the watch (less than 30 seconds) I've repaired the watch which seemed to be a temporary fix. Before I get to the apple store, any suggestions? Thanks!