Working voltage 1.8V-4.5V, suitable for ternary lithium, lithium iron phosphate, and lithium titanate batteries. Working principle: The capacitor transfers the charge, and the balance board connects to the battery to initiate balancing. Features ultra-low internal resistance MOS, 2OZ copper thickness PCB, and a balance current of 0-5.5A. The higher the battery balance, the lower the current. Includes wiring position for sleep switch. Working current in sleep mode is less than 0.1mA, with equalization voltage accuracy within 5mV. Quiescent current is approximately 12mA. Recommended for battery capacities between 30-300Ah. Includes under-voltage sleep protection; automatically enters sleep state when voltage drops below 3.0V, with standby current less than 0.1mA. Appearance and color may vary between batches, but this does not affect performance. Accessory Type: Battery Accessories Model Number: Active BMS Board Balance Current: 5A active balancer Configuration: Active balancer Type: Capacitor-based active balancer Compatible Battery Types: LiFePO4, Lithium, Lipo, LTO Cells: 8S Color: Black Material: PCB Package Contents: 1 x Lithium Battery Balance Board Note: Other items not included. Note: Lighting and display differences may cause slight color variation between image and actual item. Measurement error allowed within +/- 1-3cm.