It is it normal for it to go down about 10% an hour while listening to Apple Music on Bluetooth or Airplay while browsing in Firefox and Edge browser. I don't use Safari as it does not support two must use extensions.
I almost never charge the battery to 100%. I will let it discharge to around 50% then charge it to around 80% while using it.
I almost never charge the battery to 100%. I will let it discharge to around 50% then charge it to around 80% while using it.