Gear S3 battery temperature

I’ve just installed a watchface that has battery temperature gauge yet I’m not getting any reading. Has anyone had the same experience or know if this watch is capable of giving that information?

I have a Gear S3 and an Active 2 and neither of them will read battery temperature. I’m assuming either they can’t or Samsung won’t allow Facer access to it.

not sure to reply to the question but facer has a tag for that #BTC# (celsius) or #BTI# (Farenheit).
… but never tried on my design tbh.