Blaze won't hold a charge

[Abongo123]

My app for my Fitbit on my phone says that Fitbit is fully charged but the actual Fitbit device says battery is flat, and flashes red all the time.

Moderator Edit: Clarified subject

[Abongo123]

My app for my Fitbit on my phone says that Fitbit is fully charged but the actual Fitbit device says battery is flat, and flashes red all the time.

[Rich_Laue]

Your app will only be able to tell you what the status of the battery during its last sync. How long ago does the app say the last sync was?

I would try charging the Blaze. You may also want to try a restart.

[Abongo123]

Hi there I charge my Fitbit fully and sync with my phone, but within3 hours it fit bit shows battery flat when phone shows still says it has 80%

Sent from my iPhone

[Abongo123]

Hi there I have charged both phone and fitbit  and synced them after exercise I sync again. fitbit showing needing charged but app says 80% charged. No clue how to fix this.