1Pcs Type-C Usb Dc 5V To 3.7V 4.2V Lithium Battery 4A Pd 18W Fast Charge Module 1S Bms 18650 Li-Ion Charging Discharging Board

Description 3.7V/4.2V Lithium Battery Charge-Discharge Integrated Board | PD Bi-Directional Fast Charging Power Bank Module 4A Specifications Max Input/Output Power: 18W Battery Charge Cut-off Voltage: 4.2V / 4.35V Battery Charge Current: Fast Charge Trigger: Up to 4A (max) Critical Note: Ensure connecting wires between battery and module are short and thick. Battery protection board optional (must sustain minimum 4A output current). Protocol Support Compatible Fast-Charge Protocols: PD3.0, QC3.0, AFC, FCP, PE2.0 Material: Metal Size: 28 * 28mm Packing: 1pcs Tested Compatibility: Type-C port supports for Phone Fast Charging (verified for Phone 16PM; requires original cable). Excluded Protocols: VOOC/SCP (does not support currents >3.5A). Huawei Note: Supports FCP but not SCP. Battery Configuration Recommendations For optimal performance, use 4× 18650 batteries in parallel (high-capacity configuration strongly advised). CC/CV Charging Workflow (4.2V cutoff example): Trickle Charge Mode (Battery <3V): Charges at 300mA until voltage exceeds 3V. Constant Current (CC) Mode (Battery ≥3V): Non-Fast Charge Adapter: 2.5A Fast Charge Adapter: 4A (max) Constant Voltage (CV) Mode (Battery =4.2V): Current gradually decreases until reaching ~300mA (charge termination). Auto-Recharge: Activates if post-charge voltage drops below 4.1V. Button K Functions Short Press: Activates Type-A port and light-load Type-C port for discharge. Enables power level display. Double Press: Deactivates Type-A/Type-C ports and power display. With External Power: Only disables output ports (display remains active). Note: 1. The color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please refer to the actual product received. 2. Please allow slight manual measurement deviation for the data. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.