March 14, 2014
Dear Costco Member,
Costco Australia records indicate that you have purchased a Kirkland Signature size 10 hearing aid battery item #704131 which is manufactured by Rayovac. Certain quantities of these batteries have not performed as specified.
If you have experienced any issues, please return your batteries to your local Costco for a full refund.
Improvements have been made and the batteries are now performing as specified.
We apologize for any inconvenience caused.
General Manager Merchandise
Full PDF letter sent to affected members