Updates; I searched these forums for information about (nano coating/IP rating) in a quest to find out what happens to the IP rating for moisture control if we open the HA case? Whew! Nobody knows, especially regarding factory repair and whether the factory would somehow re-apply nano coating? Personally, I am not going to worry about this, and open the hearing aid case when I need to do so. YMMV.
Also ZPower was used by several manufacturers; Here’s some comments from a popular seller platform: ZPower is the only manufacturer of its patented 312 Silver-Zinc rechargeable battery. Other ZPower batteries sold are surplus from hearing aid manufacturers sold by unauthorized parties. These batteries are either damaged or over a year old and expired. Leading to numerous comments from those who have bought them over short life or do not work. Do not buy these batteries. Buy direct from ZPower instead. ZPower Silver-Zinc batteries, made in the USA and shipped direct to you.
Compatible with ZPower Rechargeable Hearing Aids from the following manufacturers:
- Starkey- Unitron- Signia- Bernafon- ReSound- Widex- Beltone- NuEar- Audibel