TP4056 Lithium Ion Battery Charging Board Module

TP4056 is a Li-Ion charging and discharging module with a micro USB port. The module protects the lithium-ion battery to overcharge and over-discharge. It is a complete constant voltage/current linear charger of a single cell. It monitors the cell during charging and discharging and after a critical value, it disconnects the circuit.

The module features with internal PMOSFET architecture that neglects the use of blocking diode, externally programmable current by using a single resistor, thermal feedback that regulates the charge current to limit die temperature and onboard charging indication.

Features

• Onboard charging indication
  • Red light: charging
  • Greenlight: fully charged
• Mini USB interface
• Adjustable charging current
• 1% linear charging method
• Suitable for single 3.7V and 18650 cell

Specification

• Input voltage: 4.5V to 5.5V
• Full charge voltage: 4.2V
• Charging current: Adjustable 1A
• Charging precision: 1.5%
• Operating temperature: -10℃ to +85℃

Application

• Portable devices
• Power back
• Battery charger