Wow I have missed a lot since the last time I was online. Let me only reply to @jim_lewis and everyone else please feel free to intervene
If running in Airplane Mode did make a big difference, why wouldn’t ReSound want to advertise it? They advertise that you get a longer battery life when you don’t stream. The HA’s, AFAIK, function perfectly well without a BT connection to my iPhone (I’ve lost the connection occasionally and haven’t noticed until I checked the Smart 3D app). I’m sure one will save some battery life, but the math on the 37.5 hr runtime in flight mode you calculate is not a “50%” increase. 7.5 hr increase / 30 hr runtime without streaming is a 25% increase in runtime over that advertised by ReSound. And if your 7.5 extra hrs were correct, 7.5 / 37.5 = 20% of available runtime, i.e., if turning on Flight Mode does completely shut off BT, then BT is only consuming 20% of the battery charge during normal operation with some level of sound input taken for granted by ISO standards.
You cannot compare my projected 37.5 hr to the Resound 30 hr. My measure was that with HA flight mode on, 40% battery lasted for 15 hr; and without flight mode, 60% for this 15 hr (no streaming at all in both tests). The ratio is 50% gain. All other numbers are just projected, and the ratio must be kept. Specifically, with flight mode on, 40% battery = 15 hr, then (projected) 100% battery = 37.5 hr; no flight mode, 60% battery = 15 hr, then (projected) 100% = 25 hr.
If you argue that your measure is wrong because Resound told us it must be 30 hr in the 2nd test, okay maybe in my tests, the HA was activated much more than when Resound tested their HA. But, then, if we were to place my HA in the same condition of Resound to go up to 30 hr in the test with HA flight mode off, the same time increase will be observed with HA flight mode on (specifically, if I were to scale my time from 25 hr to 30 hr, my 37.5 hr will be scaled to 45 hr). And, therefore, this does not change the ratio 50% in my tests.
And now, you can use these numbers to project how much BT consume in normal operation like you have done. But, don’t forget that you have just projected the consumption of BT in idle mode.
Now I will address your rhetoric question
If running in Airplane Mode did make a big difference, why wouldn’t ReSound want to advertise it? They advertise that you get a longer battery life when you don’t stream.
The rule of thumb is that you only advertise something that either (1) gives you competitive advantage or (2) is mandatory.
Does turning HA flight mode on give Resound the advantage? No, it is true for all HA with wireless features. Is it mandatory? No, of course. This is the same reason that Resound not advertise that the Li-Ion battery of 961R will degrade after some years (the reason that made you choose 962).
The same logic, Resound did not “advertise that you get a longer battery life when you don’t stream”, they rather state that “if you found your HA lasted less than our announced 30 hr, it may be due to the streaming, and we have no reasonability for that”.
@Morgan1946
Way too much over thinking on this…
@jim_lewis
That was my point repeatedly, too. Especially if going into Flight Mode degrades speech understanding.
I do not disagree. However, it is better know all options we can have instead of accepting only what we have been told. As I have said above, I will probably choose 612 and pack several 13 packs with me during my travel.
Nevertheless, I would like to say that turning my HA flight mode to disable all wireless features, I do not see any difference in speech understanding. Not at all!
Does this mean that all the advertised “intelligent speech enhancement” is really worthless? Or maybe we need very good ears (which we of course don’t have in the first place right?) to hear the very “improvement” if the features using wireless components are on?!
If anyone find that they have difficulty understand speech with HA flight mode on, please tell me.
Feel free to tell me if there is any point that I forgot to address.