Features: Made of food-grade material, strong, durable, and with good conductivity, offering reliable performance and long service life. High current discharge capacity and high energy conversion efficiency with low process loss. Simple charging and discharging circuit; no dedicated rechargeable battery charging circuit required. Designed with high safety and maintenance-free operation. Excellent ultra-low temperature performance; operating ambient temperature range: -40°C to +85°C. Specifications: Material: Fiberglass Board, Electronic Components Size: Approx. 9.3 x 3.8 cm (3.66 x 1.5 in) Color: Black Quantity: 1 Piece Product Parameters: Maximum Charge Voltage: Single rated voltage × N (N = number of series-connected units) Maximum Charge Current (A): Not restricted (dependent on supercapacitor discharge current) Maximum Discharge Current (A): Not restricted (dependent on supercapacitor discharge current) Minimum Discharge Voltage: 0.1 V Cell Balancing Start Voltage: 2.65 V Balancing Start Voltage Tolerance: ±0.25% Balancing Status Indicator: Red LED illumination Balancing Current per Cell: Less than 1 A DC Resistance: 1 mΩ Operating Temperature Range: -40°C to +85°C Storage Temperature Range: -40°C to +85°C Notes: 1. Equipped with LED overvoltage balancing indicator. To prevent damage to the balancing board, discharge each supercapacitor cell to 0 V before assembly. 2. Solder components individually onto the supercapacitor balancing board. For intellectual property protection, silkscreen markings on sample units may be omitted. Package Includes: 1 × Super Capacitor Balancing Protection Board