Specification 3.2V LifePO4 Lithium Iron Phosphate Power Bank Circuit 22.5W Fast Charging Charging current up to 5A (battery side), efficiency up to 96%Output power up to 22.5W, efficiency up to 95%Supports PPS/PD3.0/PD2.0Supports QC4 /QC4/QC3.0/QC2.0Supports AFC Supports FCP, SCPSupports FCP, SCP, HSCPSupports PE2.0/PE1.1Supports SFCPCharge the battery Support PD3.0/PD2.0, AFCFCP, SCP, PE1.1Module input interface:Key: short press action, open the USB port and light load Type-C output port external discharge and power display. When double-click action, close the USB port and Type-C output port and power display; if there is an external power supply present, only the output port will be closed.Type-c port: support input and output USB port: high-current output interfaceB : battery positive interface, the use of must be welded, the line must be thick, can not be too longB-: battery negative interface, the use of must be welded, the line must be thick, can not be too long module wiring with a multimeter to measure the module charging and discharging when the voltage of the B and B- contacts are the same or the difference is very small, if the difference is large, then there are wiring problems or battery aging. Problems or battery aging usePrecautionsThe motherboard received, first connected to the charging head test, look at the LED light status, to confirm that the lights can be lit before assemblyNormal application, the battery must be welded, (wire twisting will be insufficient power supply), the battery reverse motherboard must burn. Be careful. Line as thick and short as possible.Batteries can only be connected in parallel (parallel number is not limited), not in series, series must burn the motherboard.If the battery comes with a protection board, make sure that the protection board protection current is greater than 7A (fast-charging version requires more than 10A) or remove the protection board.The board will be burned in reverse. Burned IC will have traces. 8. Access to the battery to determine access to the 3.2V lithium batteries, not other batteries. Ensure that the battery is not connected in series, otherwise the battery terminal access voltage is higher than 4.5V may burn the board.Board power indicator built-in coulomb meter, just connected to the battery display will not be allowed, the power meter to support the battery capacity self-learning function, more than a few times the complete charging process can learn the current battery capacity.Package include22.5W fast charging module * 1