Features Constant Voltage Mode: When the battery voltage rises to the charging target voltage, such as 4.2V, the charging module enters the constant voltage mode, the current gradually decreases, and the battery terminal voltage remains unchanged. Constant Current Mode: When the battery voltage is greater than 3V, the charging module will enter the constant current mode. At this time, it will charge at full speed according to the set target current, and the power can get up to about 21W. Fast Charging: The charging process is divided into the following three processes, trickle mode, constant current mode and constant voltage mode. When the charging current decreases to the cut off current, the charging ends. After fully charged, if the b Trickle Mode: When the battery voltage is lower than 3V, the charging module is in trickle mode, and the charging current is 300mA. Supporting Protocol: Supports PPS, PD3.0, PD2.0, QC4+, QC4, QC3.0, QC2.0, AFC, PE2.0, PE1.1, SFCP, vooC, input fast charge protocol support for PD3.0 PD2.0, for FCP, SCP. Feature: 1. Wide Application: Supports 4.2V, 4.35V, 4.4V, 4.5V battery type, current up to 5A, efficiency up to 95%, support JEITA specification, support temperature loop control, Type C interface, supports Try.SRC function. Specification: Item Type: Fast Charging Module Material: PCB Input Voltage Range: 6V-32V Output Voltage: 5V by default, automatically adjusted between 3-12V after triggering fast charging. Output Power: 22.5W (5V at 3.4A, 9V at 2.5A, 12V at 2A, etc.) Conversion Efficiency: 95%. Package List: 1 x Fast Charging Module Note: If the voltage exceeds 4.2V, it is normal and the battery will not be damaged. When the voltage is 4.2V, the lamp is still flashing, which means it is not fully charged. Full charging depends not only on the charging voltage. Package List 1 x Fast Charging Module