Battery Formats We Commonly Test at S9
- Pavel Mitev
- Jun 12
- 1 min read
Updated: Jun 13

Curious if your battery is a fit for S9’s services? This article outlines the most common cell types we test, including cylindrical cells like 18650 and 21700, small pouch cells, coin cells, and solid-state lab samples. We also explain the kinds of projects each format is typically used for, making this a quick reference for engineers, researchers, and product teams.