Features 【Soft Starting】: Has built in soft start function to prevent faults caused by excessive inrush current during start up, also has integrated output over current, short circuit, over voltage, over temperature and other protection functions. 【Safer Working】: The output discharge port will be closed in the electric state to prevent the input high voltage from damaging the charged device. 【Convenient Use】: Equipped with various ports for input and output, and the quick charging indicator will clearly show the charging status. 【Auto Adjusting】: Automatically adjust the charging current for adapters with different load capacities. 【Quick Charging】: Supporting quick charging protocol, the module can convert 3.7V input to 5V, 9V and 12V. Specification: Item Type: Battery Quick Charging Module Material: PCB Model: IP5328P Output Interface: USBA+USBA+TYPE C supports quick charging output (see the specification for the quick charging protocol) Input Interface: MICRO + TYPE C, supports quick charging input (see the specification for the quick charging protocol) Power Supply Voltage: DC 3.7V Quick Charging Indicator: Input and output high voltage quick charging indicator. Conversion Efficiency: 95% Function: Used for boosting. Applicable Scene: For mobile power.  Package List: 1 x Battery Quick Charging Module Note: The main board has positive and negative poles, the battery cannot be connected reversely, which will burn the main board. Package List 1 x Battery Quick Charging Module