The battery life on my rechargeable Phonaks is noticeably less than the Oticons I have. I usually wear them from 7 AM to about 9 PM and they are sometimes into the "red" battery condition. I don't do a lot of streaming either. The Phonaks end the day with about 25% less battery charge than the Oticons. There are a number of other things I don't like about them too, but they do perform well for me. I can list the good and bad of each brand if you'd like.