Hearing Aid Batteries Size 312 Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

DURACELL is the best-performing hearing aid batteries size 312 brand in July 2026, moving 14,000 units across 5 ASINs for 60.9% of Top 10 volume. Amazon Basics follows with 3,000 units (13.0%), ahead of VARTA on 3,000 units (13.0%).

With 5 brands splitting the Top 10 and 87.0% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $16.49 to $24.55, which frames the price band a competing listing has to justify.

Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, 2 ASINs forced its way in: B003S8NYD6 booked 1K units at $21.99, with ▲ 11.1% MoM change. On the growth side, B07ZDR75BT leads positive momentum with ▲ 500.0% MoM growth on 300 units.

The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.