10Pcs USB Type C Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery with Charging Boost Power Supply Protection Module and and LED Charge Indicators 1A 5V

This is a new type of integrated charging and discharging power board module. It not only overcomes the limitation of being used solely for charging or solely for discharging, but also features a compact and lightweight design, making it easy to install and use.
Module specifications: voltage
range: 5~6V, current: 1A, interface: Type-C. When the charging current drops to 100mA after reaching the final float voltage, the charging cycle will be automatically terminated. When the battery voltage drops below 4.05V (which corresponds to 80% to 90% of the battery capacity), the charging cycle will restart. When the battery voltage is below 2.9V, the battery will be pre-charged with a current of 100mA.
Protection function: equipped with a protection board, it provides over-voltage protection, over-discharge protection, and over-current protection.
Over-discharge protection value: 2.4V
; over-current protection value: 4A.
Note: the first time you need to connect the power supply to activate the protection board; the battery cannot be reversed; the battery terminal voltage cannot exceed the purchased voltage; the battery can only be connected in parallel, not in series, as connecting in series will damage the module