Not tracking heart rate - Sleep recorded inaccurate

[Naneliza]

My Charge 2 stopped tracking my heart rate a few days ago, and also hasn't been tracking my sleep correctly (only recording 2 or 3 hours when I've actually slept well for 7 to 8 hours.

Moderator edit: Subject for clarity 

[RicardoFitbit]

Hi @Naneliza thanks for bringing this to my attention, welcome to our Fitbit Community! Let me give you a hand with your difficulties.

Seems odd that your Charge 2 is not recording heart rate at all. If you haven't already done so, please check our help article: Why don't I see my heart rate on my Fitbit device? and take in consideration all the information and steps that are specified there. Also, can you please let me know if you're receiving auto-sleep logs or Sleep Stages? Take in consideration that Sleep Stages need heart rate data to be recorded. Can you please let me know when was the first time your sleep was not recorded accurately and how many times? I'll be looking to your reply.

Keep me posted and let me know if you have any additional questions. 

[Naneliza]

It looks like the heart rate and sleep tracking started messing up last
Wednesday, May 29th. I figured they were related to each other. Now I just
got notification that my Fitbit battery is very low, but it was fully
charged at about 11 this morning, so I'm not sure what is going on.
Thanks!
Naneliza

[RicardoFitbit]

Welcome back @Naneliza thanks for your reply and update, my apologies for my delay in responding.

I appreciate the details that were provided in your response, such information helped me to better understand your concern. Can you please let me know if the steps that were shared in my previous post were tried? Also, is the battery of your Charge 2 not charging anymore or this rapid-depleting situation was experienced again? I recommend you to check our battery life tips from our hep article: Can I improve my Fitbit device's battery life? and let me know how it goes. 

Looking forward to your reply, I'll be here.