I wonder charging history data (with Inspire 3)

[LuceteLee]

I wonder if there is any information on the charging record among the data that can be viewed through data export from Fitbit.
For example, there is information that you charged the device on what month, what day, and what time, so I want to know when the user charged the device.

So far, no such data has been found.
If such information is not provided, is there a rule that is carried out during the charging period in other data (step, heart rate, etc)?
For example, if the device is charging, some data values are stored as either zero or NULL values.

While charging, I thought the heart rate value would have been 0 or null, but when I checked the data of the time I thought it was charging, I have a big question because it is not.

I would really appreciate it if you could give me an explanation or a solution for this.

Thank you for making a good device and program.

[LZeeW]

Hello @LuceteLee and welcome to the Community.  No Fitbits store a charging history, like you can see on your phone.  Likewise, there's no battery health indicator.  I always have a gap in my heart rate while its on the charger.