Sizes of Batteries We stock premium Zinc Air batteries for most models of hearing aids – inquire at reception. Size 312 (Brown) Size 10 (Yellow) Size 13 (Orange) Size 675 (Blue) Cant find what you need? Contact us to request a specific product. Subscribe To Our NewsletterJoin our mailing list to receive the latest news and updates from our Robillard Hearing Centres. New subscribers are eligible to receive 2 free packs of batteries, redeemable in-store! SUBSCRIBE! You have Successfully Subscribed!