This TP4056 1A Li-Ion Battery Charging Board Type C with Current Protection is a tiny module, perfect for charging single cell 3.7V 1 Ah or higher lithium-ion (Li-Ion) cells such as 16550s that don't have their own protection circuit. Based on the TP4056 charger IC and DW01 battery protection IC this module will offer 1A charge current then cut off when finished.
Furthermore, when the battery voltage drops below 2.4V the protection IC will switch the load off to protect the cell from running at too low of a voltage and also protects against over-voltage and reverse polarity connection (it will usually destroy itself instead of the battery) however please check you have it connected correctly the first time.
 
Specifications:
Charging accuracy (%)
1.5
Charging method
Linear
Full Charge Voltage (V)
4.2
Over-Current Protection (A)
3
Under-Voltage Protection (V)
2.5
Input Voltage (V)                                                         
4.5-5.5
Rated Power (W)
4.2
Operating Temperature (°C)
-10 to 85
Connector type
USB Type C
 
Applications / Suggested Uses-
Li-ion Battery Charging Circutis
DIY Projects with Arduino