Blockquote @Volusiano You can’t ask your audi to order a spare set from Oticon for you?
Tried that, but Oticon said that they had no process in place to ship Li Ion batteries to the Audi.
They insisted on my aid being returned to them to check it and install a new battery. Last time I did that it cost me $280.
I declined and ended up fixing the battery myself using a device as shown in another thread.