These batteries are the newer version of Rayovac Extra Advanced batteries and now have replaced them due to its advanced technology of Active Core Plus with Air Optimisation. That is why, Active Core Plus is state-of-the-art of technology.
80 x RAYOVAC Extra Hearing Aid Batteries Type 312 - PR41 - Colour Code Brown - 1.45 Volt - Pack of 80 (10 x 8 Batteries)
40 x RAYOVAC Extra Hearing Aid Batteries Type 312 - PR41 - Colour Code Brown - 1.45 Volt - Pack of 40 (5 x 8 Batteries)
80 x RAYOVAC Extra Hearing Aid Batteries Type 10 - PR70 - Colour Code Yellow - 1.45 Volt - Pack of 80 (10 x 8 Batteries)
40 x RAYOVAC Extra Hearing Aid Batteries Type 310 - PR70 - Colour Code Yellow - 1.45 Volt - Pack of 40 (5 x 8 Batteries)
6 x Rayovac Extra Advanced 675 Hearing Aid Batteries 2018 Design with Active Core Technology - 675AUX-6XEMF
6 x RAYOVAC Extra Advanced with Active Core Technology 10 - the latest generation of hearing aid batteries
