HEARING AID BATTERIES 101
• Hearing aid batteries are standardized with number and color codes to make it easy to find what you need. The easy-to-remember codes are 675 (Blue), 13 (Orange), 312 (Brown) and 10 (Yellow).
• Hearing aid batteries typically last about 7-10 days, depending on the size of the battery, your model hearing aid, level of hearing loss and the demands of the location where you use them. The more active your hearing aid is, the more battery power it will use.
• Keep at least a month’s supply of hearing aid batteries on hand, about eight to 10, and order more once you’re down to four to allow for shipping time.