The Rayovac Extra Size 675 (Blue) batteries come in a colour coded pack of 60, perfect for those with a high demand for hearing aid batteries or, due to their four-year shelf life, for those who like to keep spares. Their packaging has been designed so they are straightforward to use, simply slide them out of the packaging using the tab, which has been produced bigger to make the battery easy to insert into your hearing aid.
Using innovative technology, Rayovac have maximised these batteries performance by including a new active core, which provides long-lasting power. They have also included their own Air Management System, which ensures the battery receives the specific amount of air that is needed to ensure cell stability and reliability.
It has also been made sure that these batteries are more environmentally friendly, created without the use of Mercury.