TP4056 Li-Ion Li-Pol Micro Automatic Charger Arduino
Automatic charger for Li-Ion Li-Poly batteries based on the TP4056 system with a charging current up to 1A and protection of cells against excessive battery discharge below 2.5V. The system enables easy and quick charging of cells, e.g. type 18650, and other types of batteries without a protection system. The power source can be a microUSB port or voltage directly connected to the input pins of the +/- system. The battery to be charged should be connected to pins B + / B-. The target circuit that we want to power from the batteries should be connected with OUT +/-.
- input voltage: 4.5-5.5V
- final charging voltage: 4.2 V
- max charging current: 1A (default setting)
- USB port type: micro USB
- LED diode - cell charging signal (red diode)
- LED - signaling that the cell is fully charged (blue LED)
- dimensions: 28mm x 17mm
- total height with a 4mm micro USB socket (after removing the 3mm socket).
- operating temperature range: -10 ° to + 85 °
- reverse polarity: no
- current protection: 3A
- securing the cells against excessive battery discharge below 2.5V: yes
The module can be used to create PowerBanks.
The charger module is sold with a charging current of 1000mA (1A).
By changing the values of the resistor R3, the charging current can be changed.
For R3 = 1.22kOhm, the charging current is 1000mA (1A).
For R3 = 2kOhm, the charging current is 580mA.
For R3 = 5kOhm, the charging current is 250mA.
For R3 = 10kOhm, the charging current is 130mA.
For R3 = 20kOhm, the charging current is 70mA.