Philips 9010 T R questions

I am new to the forum, but my Philips is my third HA in 20 years. I am using the provided iPhone application and I find that at the end of a typical day my right hearing aid use about 25% more of the battery than my left one. Is this usual or is it an exceptional case or even indication of a problem? My second question concerns Philips TV Adapter. Please share your experience with the unit and do you think it is worth the money? I believe its $240 price is high compared to generic Bluetooth transmitters. Thank you in advance.