Phonak Bolero B90-PR Rechargeable Hearing Aids and Charger. B90 is Phonak's top of the range device, P is the Power model (BTE) and R is for rechargeable. I tested the battery the only way I know how. I charged them fully then removed from the base and set on a coffee table to listen to the household noises all day. I started at 11am and at midnight after 13 hrs they were still on indicating acceptable battery life.
You must provide to me either a signed statement from a physician or a signed waiver before I will deliver this item to you.