This 5V 1A TP4056 module with mini USB port is a constant-current / constant voltage linear charger for single cell lithium-ion batteries. It's SOP package and low external component count make the TP4056 ideally suitable for portable applications. 

 

TP4056 Module Specifications:

• Input voltage : 4.5V ~ 5.5V
• Full charge voltage: 4.2V
• Power: 4.2 w
• Charging accuracy: 1.5%
• Charging indicator: micro LED
• Input Interface: Mini USB port
• Charging method: linear charge
• Operating Temperature: -10 to +85^ºC

Package content:

1 - TP4056 1A li-ion lithium battery charging module - mini USB.