PackForge is a battery pack sizing calculator that turns hours of spreadsheet work into a few minutes of interactive modeling. Pick a commercial cell from the built-in library — or enter your own specs — then size modules and packs, choose structure materials and cooling systems, and immediately see estimated voltage, energy, mass, cost, and power density, along with engineering risk flags for thermal limits, C-rates, and fast-charge stress. Presets based on real production hardware, like the Nissan Leaf and Tesla Model 3 modules, make it easy to baseline a design against proven architectures before you commit to detailed simulation or prototyping.

The tool is built for EV and e-mobility engineers, battery system integrators, energy-storage designers, students, and serious hobbyists — anyone who needs trustworthy first-pass pack estimates early in a project. A free demo covers the essentials, while paid tiers unlock the full commercial cell and module libraries, custom cell entry, saved configurations, and side-by-side comparison of design alternatives.

PackForge is built and maintained by the PackForge team. Cell specifications and cost figures are engineering estimates compiled from public manufacturer datasheets and market research — always validate final designs against official manufacturer data and your own testing.