21/23 Battery Buying Guide for B2B Buyers

The phrase '21 23 battery' refers to the A23 (or 23A) 12V alkaline specialty battery, primarily known under brand designations like Duracell's MN21/23. These batteries are high-voltage cells constructed from eight stacked 1.5V button cells, designed for devices requiring high-energy pulse signals.

Market insights for 2026 show that demand remains strong for legacy applications such as garage door openers, car key fobs, and wireless doorbells, while growth is seen in IoT sensors and medical alert pendants. B2B pricing for these units is highly competitive, with bulk wholesale rates ranging from $0.10 to $0.30 per unit from manufacturers in specialized battery hubs like Shenzhen and Ningbo.

Detailed technical specs, market volume trends, and sourcing data are available in the report below.