HEARING AID PRODUCTS: BATTERIES In addition to offering batteries during our on-site visits, Dr. Goldstein's Western Reserve Audiology offers Hearing Aid BATTERIES BY MAIL. Our "Batteries by Mail" program is prepaid for TWELVE MONTHS and you can simply call our office before you are out of batteries and we will mail them to you. The battery prices will include postage and handling. #675 BLUE #13 ORANGE #312 BROWN #10A YELLOW Battery "EIGHT PACKS" are also available upon request. Battery Carriers and Battery Testers are also available. These are great for persons who wish to carry batteries on their key chain, and who want to be able to check the function of their hearing aid batteries at a moment's notice.