Battery Balancing Techniques
An advanced method of managing an equal SOC across the battery pack''s cell is known as active battery balancing. Instead of dissipating the excess energy, the active balancing redistributes
Selecting the appropriate battery balancer depends on several factors: Battery chemistry: Ensure compatibility with the specific battery type (e.g., lithium-ion, LiFePO4, lead-acid). Number of cells: Choose a balancer that supports the required number of cells in series. Balancing current: Consider the required balancing speed and efficiency.
needs two key things to balance a battery pack correctly: balancing circuitry and balancing algorithms. While a few methods exist to implement balancing circuitry, they all rely on balancing algorithms to know which cells to balance and when. So far, we have been assuming that the BMS knows the SoC and the amount of energy in each series cell.
Battery balancing is the process of equalizing the charge among individual cells within a battery or between batteries in a group to maintain consistent voltage levels and state of charge (SOC). This ensures that no cell is overcharged or undercharged, helping to prevent performance issues, capacity loss, and a shortened battery lifespan.
To prevent unbalance in the future, as the batteries are aging, use a Battery Balancer. The battery balancer is wired into a system as indicated in the image on the right. It measures the battery bank voltage and also the individual battery voltages.
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