Fogstar Drift Pro Active Balancer 2A 4S Ensure optimal performance and longevity of your LiFePO4 batteries with the Drift Pro Active Balancer 2A 4S. Engineered to actively balance 4-cell lithium iron phosphate battery packs, this unit helps correct voltage imbalances, prolongs battery lifespan, and supports consistent performance. Key Features Designed specifically for 4S LiFePO4 batteries (4 cells in series). 2A active balancing current allows for fast and efficient voltage equalisation. Improves battery pack efficiency and supports extended battery health. Compact, easy-to-install unit for integration into existing battery systems. Ideal for leisure battery setups and off-grid power applications. Ideal For Off-grid solar storage systems 12V campervan battery systems Leisure battery maintenance Marine power systems Technical Specifications Battery Type LiFePO4 (Lithium Iron Phosphate) Cell Configuration 4S (4 Cells in Series) Balancing Current 2A Input Voltage Range 2.2V - 4.6V per cell Operating Temperature -20°C to +60°C Dimensions 102mm x 80mm x 25mm Weight 250g