The TP4056 1A Li-ion Lithium Battery Charging Module with Current Protection - Mini USB is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries. Its SOP package and low external component count make the TP4056 ideally suited for portable applications. The TP4056 can work with USB and wall adapter.

The Li-ion Cell Charger/Monitor module used for this Battery pack solution is based on TP4056 1A Standalone Linear Li-lon Battery Charger with Thermal Regulation chip. No blocking diode is required due to the internal PMOSFET architecture and have prevent to negative Charge Current Circuit. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The TP4056 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached.

Technical Specification:

• Input voltage : 4.5V ~ 5.5V
• Input Interface: Micro USB port
• Charging method: linear charge
• Charge Current: 1A
• A full charge voltage: 4.2V
• Power: 4.2 w
• Charging accuracy: 1.5%
• Operating Temperature: -10 to +85ºC
• Charging indicator: Blue LED charging, Red LED full
• Size: 3cm*2cm*1cm (L*W*H)

Features:

• Use mature charging chip TP4056 for simple peripheral circuits, good protection performance, and high charging accuracy
• Fully machinery automated processing, all patch parts manufacturing
• The charging current can be adjusted by just changing the circuit board’s fixed resistors. It can change the output to the 100mA-1000mA, very conveniently
• The connection wire should not be too thick
• Make sure the connect point is good
• Led indicator: red is charging Green is fully charged
• Current Protection: Yes
• Inversed polarity: NO
• Use mature charging chip TP4056 for simple peripheral circuits, good protection performance, and high charging accuracy
• Fully machinery automated processing, all patch parts manufacturing

Applications:

• Charge and Discharge Lithium cells
• Commonly used with 18650 Li-ion batteries
• Portable electronics
• Power banks
• Used with 5V booster for powering Arduino projects