Single Lithium Battery Charger Charging Module 1A 5V-6V 4.2V TC 4056 Micro USB Power Supply Board (Replacement TP4056)

Basic parameters
Input voltage range: 5~6V
Output voltage: 4.2V
Charging current: 1A

Features
When the charging current drops to 100 mA after reaching the final float voltage, the charging cycle is automatically terminated.
When the battery voltage drops below 4.05V (approximately 80% to 90% of the battery capacity), the charge cycle begins again.
When the battery voltage is lower than 2.9V, the battery will be precharged at a current of 100mA.