TP4056 charger with protection for Li-Ion and LiPo cell

TP4056 charger for Li-Ion and LiPo cells with protection circuit. Indicates with 2 LEDs when charging and when fully charged.

Max charging current is 1000 mA. It can be reduced by replacing the resistor R3.
On delivery (default), R3 = 1.2kohm (SMD 0603) = 1000mA

10kohm 130mA
5 kohm 250mA
3 kohm 400 mA
2 kohm 580 mA
1.66 kohm 690 mA
1.5 kohm 780 mA
1.33 kohm 900 mA
1.2 kohm 1000mA

Specifications:

• Overvoltage protection: 4.3V
• Undervoltage protection: 2.4V
• Overcurrent protection: 3A
• Input voltage
• Voltage via micro-USB: 5V
• Voltage via solder connection: 4.5-6V
• Battery (solder connection): B+ and B-