A number of these zinc-air batteries are mainly used in the medical field as batteries for hearing aids.
The design and characteristics of the battery provide maximum performance for a constant operating voltage at various ambient temperatures, which is the first step for maximum battery reliability.
Their storage time is up to 3 years and the working temperature is -20 °C to +40 °C.
Technical parameters:
chemical composition: zinc air
voltage: 1.45V
category/series: Hearing Aid
nominal capacity: 170 mAh (at 1.0 kOhm load)
type designation: GP ZA312 (7002ZD, PR41)
dimension: 7.9 x 3.6 mm