Is anyone else experiencing this issue with their fitbit: I bought the fitbit versa last May to replace my old alta so I could monitor my heart rate during my runs. In the last 2 days I noticed my battery was draining rapidly and would die after 5 hours of wear compared to previously when it could last 3-4 days before it needed to be recharged. Today I put the versa on the charger (again, the battery died a few hours after charging to 100%) but this time it isn't turning on nor is it charging. I can feel the fitbit on the charger and it is warm to the touch. What is causing this issue and any advice on how to get the fitbit to work again?