Hi @x475aws This is the problem with the internet as the information they gave is speculation rather than know how. It’s not a 675 size cell. And 2mm difference on a hearing aid is big.
It’s always the same phenomenon in the clinic: user walks in, needs performance and battery time, but when they see the consequence on size the moment you put different alternatives on the table they go “ohh… I prefer the smaller”. Cosmetics is important. And yes, there is the market segment who learned that performance for longer time is key. And the question is where one sets the trade-off between
size (ie cosmetics & comfort)
battery time
or alternative ways to charge during the day
Especially on point 3 I believe the systems could improve in terms of a) reliably charge and b) knowing better how people would charge on the go
Presumably they get some engineering advantage from the higher voltage achieved by connecting the two batteries in series rather than parallel, and it doesn’t make any difference to the user. This doesn’t mean that the device couldn’t be made to work on 1.45V supply voltage. For what it’s worth, human nerve potentials are in the tens of millivolts.
It’s not so long ago that you (the manufacturers) let us make our own decision within the limited technology choices then available. Aids came with a choice of battery sizes, so one customer could choose a smaller device with shorter runtime, and another could pick a larger device with longer runtime. Now that there are more technology options, you’re sticking us with the dreaded “one size fits all” on these very expensive devices.
In 2022 I was so glad I didn’t have rechargeable hearing aids during Hurricane Ian. We were without power for 8 days. I was President of our condo association and needed to be able to interact with contractors.
people, there are solutions for such cases. This is normally used for camping, but it can also be used for emergencies. There are various sizes. Disposable batteries are practical, but it seems that they can no longer satisfy the market because hearing aids require a higher voltage.
