We carry nearly all accessories for the Gould TR3000 Ophthalmic Diathermy Unit Medical. If you are looking for a battery or electronic accessory for the Gould TR3000 Ophthalmic Diathermy Unit and cannot find it, please feel free to contact us. We are always adding new products to our site, and we would love to help you find it. We always have people, not computers, that answer the phone.