Glossary: Battery Cell Balancing

Battery cell balancing is the process of equalizing the charge levels of individual cells within a multi-cell battery pack.

Expanded Explanation

In battery packs where cells are connected in series, small differences in capacity and internal resistance cause cells to charge and discharge unevenly over time. Cell balancing corrects these differences by redistributing energy or limiting charge to individual cells, helping maintain uniform performance. Balancing is typically managed by a Battery Management System and may be passive or active, depending on system complexity and application requirements.

Why it matters

Proper cell balancing improves safety, maximizes usable capacity, and extends overall battery lifespan.

iTECH Context

iTECH incorporates appropriate cell balancing strategies based on battery configuration and application risk profile.

Applications

Medical battery packs, industrial systems, multi-cell lithium batteries