4S 5A Active Balancer: Precision Cell Equalisation for LiFePO4 and Li-ion Battery Packs Maintain Peak Battery Performance with Capacitive Energy Transfer Balancing The 4S 5A Active Balancer is a high-efficiency battery equaliser designed to keep your LiFePO4 or Li-ion cells in perfect balance. By actively transferring energy from higher-voltage cells to lower-voltage cells, it maximises usable capacity, extends cycle life,...