Features: Achieving equalization current with low 0.005V-0.01V through microcontroller driven energy transfer between adjacent capacitors. This module operating at 1.5-2.5mA standby consumption while supporting scalable configuration for flexible battery pack integration. Ideal for electric vehicle owner, solar energy user, and enthusiasts requiring professional battery management solution. Optimizing in high demanding applications like battery arrays, industrial backup, and energy storage units where consistency is critical. Engineered for durability and adaptability, this active balancing maintains long term across 4S-8S configuration using expansion capabilities, backed by measurable current at 1V differential Specifications: Component:Plastic Size:Approx.85x70mm/3.34x2.75inch Package Includes: 1 Set Active balancing equalizing note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.