PowerOne Size 312 Hearing Aid Batteries – 50 x 6 Packs = 300 pcs.

A long service life with a guaranteed high cell voltage thanks to a patented cathode technology makes frequent battery changing redundant and promises the best sound.
Each individual cell is tested for its electrical and mechanical characteristics in accordance with its specifications.
A highly developed film seal for every cell guarantees that the battery does not dry out or drain prematurely.
The stainless steel housing provides high-level stability and safe protection against corrosion.