I have new Phonak Lumity L90 with Lumity CROS in bi-CROS for 6 days. I had heard that the battery in a CROS unit won’t last for the “16 hours with 4 hrs. streaming” that Phonak advertises for the Lumity. The reason is that the CROS is continuously transmitting sound to the main aid. That makes sense.
In 12 hours my CROS is under 20% remaining battery. But the main L90 is under 10% at 12 hours, with no more than 30 minutes of streaming. I am wondering if a bi-CROS setup uses more battery in the main aid as well because it has to continuously receive the signal from the CROS and then process and amplify it. That in addition to processing and amplifying the sound from it’s own mics.
Does anyone know if that is correct? Otherwise my main aid’s battery must be defective because it is not getting even close to a full day’s use.