You all know that if you bring your Oticon hearing aid for a new battery to the audiologist, they charge you $150 and give it back in a week. Then when you look at potential retail places to replace your rechargeable batteries, there are not many options. I also found out that Z22A is compatible with part numbers with LIR840.
I found one on ebay that is a decent price.
https://www.ebay.com/itm/267061985713
That Ebay listing is for something like this. Tiny capacity, about 10% of a 312. You can get 100 of them for $100 at Alibaba in plain, wired, or tabbed. But $1000 shipping. LOL But gives a hint about what the Ebay seller is probably doing. No idea what Oticon uses or if DIY replacement might be difficult or even a scam. https://www.aliexpress.com/item/1005007205581536.html
Unfortunately, the new Intent has to be sent back to Oticon for battery replacement, as it’s hard wired due to contact charging.
All good thiongs come to an end!
Bought it, did DIY easily to replace battery and it works well. Easy to recharge and use all day.
I had tried the 312 battery as its much cheaper and tried it. Found that I was replacing them far too quickly.