Home > Accessories > Batteries « Back Rayovac Hearing Aid Batteries (Size 675) x30 Cells Condition: New £9.99 £8.33 (ex. VAT) You will earn 9 points which is the equivalent of £0.18 Print Send to a friend Description Rayovac Hearing Aid Batteries - battery size 675 x30 Rayovac Zinc Air Hearing Aid Batteries (Size 675) Type: 675AU. Colour code: Blue. Capacity: 1.4V 640mAh. Reviews Write a customer review and share your thoughts with other customers. Be the first to review this product.