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ISL94203 Battery Management IC Slide 6

Cell balancing is the process of equalizing the state of charge in all the cells of a lithium-ion battery pack. The more cells in a system, the more likely that balancing is needed. Cells are usually matched when a pack is assembled to be within 0.2% of each other, but can become unbalanced due to varying charge and discharge rates, temperature variations, and unbalanced loading, among other reasons.

PTM Published on: 2015-11-19