Type-C MCU power module 18650 lithium battery charging 1.8V 3.3V 5V power supply -87889

Module introduction:

The module can provide uninterrupted power supply to the single-chip microcomputer through the 3.7v 18650 lithium battery and Type-C usb port input 5v power supply, and can also be used as power supply for some modules with suitable electrical parameters (not directly connected to the motor), the module is spaced at 2.54mm It outputs three different voltages of 5V, 3.3v, and 1.8V in the form of a pin header, which can be used as a power supply in various scenarios. The module has 4 indicator lights, which are used to identify the current battery power and battery charging status.

LED Indicator Description (Right -> Left):

Discharge mode:

LED1: remaining power ≤ 25% (when flashing, it means that the power is less than 3% and it is time to charge)

LED2: remaining power ≤ 50%

LED3: remaining power ≤75%

LED4: remaining power ≤ 100%

Charging mode:

LED1: Blinking indicates that the current charging capacity is less than 25%

LED2: Blinking indicates that the current charging capacity is less than 50%

LED3: Blinking indicates that the current charging capacity is less than 75%

LED4: Blinking means that the current charging power is less than 100%, and it is always on when it is fully charged

Introduction to parameters:

1. USB port input voltage: 4.7-5.5V

2. Battery working voltage: 3.1-4.3V

3. Battery full voltage: 4.15-4.25V

4. Maximum output current:

5V: 1.5A

3.3V: 400mA

1.8V: 150mA

5. Cut-off output voltage: battery 3V

6. Charge while discharging: the output voltage is 4.5V and the maximum is about 400mA

7. Battery connection method: parallel connection (one or two batteries can be connected)

Use and Precautions:

There is a toggle switch on the module, which can control the output. When it is turned to the left, the output is turned off, and when it is turned to the right, the output is turned on;

If the battery protection chip triggers protection, installs a new battery, and turns on the switch indicator light, it can be connected to the usb port

Activate the charging;

After the output is turned off, the indicator light will remain on for about 30s and then go out;

Note that the battery connected to the module is in parallel, do not connect the battery to the module in series;

Pay attention to distinguish the positive and negative poles, reverse connection will burn out the module (there are positive and negative silk screens on the board, install the battery strictly according to the silk screen instructions);

Note that the output should not short-circuit the input and output interfaces;

Note that the module output interface cannot be directly connected to the motor.