This past Friday i wore the More 1’s for 15 hours and 25 minutes and did probably a total of 7 streaming hours (phone plus TV adapter). Went to bed with one HA having 14% and the other 15%.
I have thought about the spare rechargeable and have to agree that there is no practical way to keep them charged because you can only charge them inside of the instrument. For me, this would make it unworkable in practice because you need the HA’s in the charger longer to charge two sets of batteries. I would also have to store them safely given they are Lithium-ion and presumably a (small) fire risk if they shorted out against each other somehow.
This suggestion from Volusiano is what i will end up doing if i run into issues. It’s what i do for my Apple Watch which i wear during the day and at night for sleep tracking. A small inconvenience and its all about routine.
Will keep tracking usage and the 16 hours still seem reasonable so far… It will be interesting to see what happens as the batteries age. I understand replacement is under warranty so we’ll see.