CellBench helps you design and simulate lithium-ion battery packs using real cell data. Compare 18650 and 21700 cells side by side, configure a pack, and see how it performs before you buy a single cell.
Every cell in our database is backed by a data source you can see: cells we've discharge-tested in our own lab, specs pulled directly from manufacturer datasheets, and clearly-labelled synthetic estimates where no published data exists. We show you which is which so you can judge the numbers for yourself.
Start with the cell database, build a pack in the pack simulator, or read reviews and build guides on the blog.