My summary added 11.30.2023: My Costco in Bend Oregon U.S.A. quoted @$200 for rechargeable battery replacement on KS10 HAs if they are out of warranty; no cost if within the USA 3 year warranty period. Interestingly she also said that she had some wiggle room if they were only slightly over the 3 year limit. About 2 week turn around.
Your experience with having Costco send KS10 aides to Phonak for rechargeable battery replacement:
- Are they still doing this as of November 2023?
- Approximate cost?
- Approximate turn around time?
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My 4-year old KS10s no longer make it through the day and need partial charging during the day. I am nearing end of trial of new Philips Hearlink and plan to return them and go back to KS10s. With Roger remote mic options, the KS10s/Phonak are better fit for my needs (and severe hearing loss) which now includes more situations in at least moderately noisy environments with several people.
Original battery had good longevity; I was usually quite careful with it. Meaning tried to never let it go much below 20% before recharging; rarely left in charger after fully charged. I had learned from numerous articles a decade ago that while rechargeable batteries all get the same number of lifetime recharging cycles, you can optimize those cycles by trying to use battery within the range of 20% to 80%; reducing quick charging in favor of slow charge; avoiding extreme temperatures. (Article for example BU-808: How to Prolong Lithium-based Batteries - Battery University).