TP4056 Mini 3.7V Li-ion Charger Module 1A With Battery Protection Micro USB

This module is made for charging rechargeable lithium batteries using the constant-current/constant-voltage (CC/CV) charging method. In addition to safely charging a lithium battery the module also provides necessary protection required by lithium batteries.
TP4056 1A Battery Charger Module Micro USB
This TP4056 specification charger board allows user to charge battery using either a Micro USB connector at 4.5V – 5.5V input voltage
Features:
Input Interface: Micro USB port
Charging method: linear charge.
A full charge voltage: 4.2V.
Charge Current: 1A (default), modify the onboard resistor to adjust the charging current
Charging accuracy: 1.5%.
Charging indicator: BLUE LED charging, RED LED full.
Dimensions: Approx 22 x 17mm