Battery draining and red x

[ALP8]

Have a sense 2 which is around 18 months old. The battery has suddenly started draining quickly which means I am having to charge it on a daily basis. I have done numerous resets and get a red X on the screen each time. I have also done a factory reset, deleted the Fitbit app on phone and reinstalled it. I have done everything suggested in similar posts in the forum but it is still not working properly. Can you help please?!

[pbyogi]

Same thing started happening to me. Everything was working great prior to the most recent update from June. 

[jeip14]

I am having the exact same issue, and went through all of the suggested steps as well. Charged my watch to 100% last night before I went to bed. It’s 5:30am and it’s already down to 75%. It is also frequently disconnecting from my phone, and this morning when I looked at it the time was incorrect! It fixed once I synced it but if it can’t even keep time at this point it’s worthless.

[Trussman86]

Same thing is happening to me. I charged mine last night, and minutes after taking it off the charger and just walking downstairs and it’s down to 78%, then after playing a sport it randomly shut off like it was dead. But 10 seconds in the charge it’s back up to 60%.