BRAND NEW!!!!!! ZENIPOWER HIGH PERFORMANCE HEARING AID 10 CARD OF SIX BATTERIES Product Description ZeniPower premium long-life zinc-air batteries have high performance and the world’s best price! The zenipower Co., has been marketing their hearing aid batteries since 1988. All their batteries are designed high power and are suitable for digital hearing aids and cochlear implants. You can expect clearer tone, less sound distortion, fewer volume adjustments and longer service life.