14 Hearing aid batteries type 312 02/2018

Around 1.5 million people in Germany wear hearing aids that mostly draw their power from small button cells. Stiftung Warentest took 42 of these zinc-air batteries into the laboratory, 14 of each of the three most commonly used battery types: Type-10 cells for the small inconspicuous in-the-ear devices, Type-312 batteries for behind-the-ear devices of medium size, and Type-13 cells for high-amplification large devices. Almost every second one is good - but it is worth looking at the prices.