Arduino-Based Low-Cost Battery Capacity Measurement Tool

This work presents the development of a new high-precision coulomb counting-based capacimeter. The goal was to provide a reliable, low-cost, portable, accessible, and user-friendly tool for non-professionals to accurately assess battery capacity. Results demonstrate that our slow discharge capacimeter offers precise and reproducible measurements of Li-ion battery capacity. This advancement opens new avenues for optimizing energy systems and selecting high-performance batteries.