12V 3A 24W 36W UPS Board 3S Lithium Battery Charging and Discharge لوحة يو بي إس

The 12V 3A UPS Circuit Board is an uninterruptible power supply module designed for 3-string (3S) lithium batteries, delivering up to 36W of max output power with seamless automatic switching during power outages. Key Specifications: Input/Supply Voltage: 12V DC Maximum Output Power: 36W Battery Compatibility: 3-String (3S) lithium battery packs Max Charging Current: 0.5A Output Voltage Range: 11V to 13V (stable DC 12V output) Operating Temperature: -40°C to 80°C [1, 2, 3, 4] Important Usage Cautions: Wiring: Use thick, short wires of at least 20AWG, keeping lengths under 10 cm for input and output connections. Connection Order: Always connect the power and load first, and attach the battery as the last step. Battery Configuration: Remove resistors R16, R17, and R18 if using a 4-wire battery connection; keep default settings for a 2-wire connection. Thermal Management: The control board generates heat during operation, so mount it at a safe distance from the lithium battery pack.