Type-C MCU Power Module,1.8V 3.3V 5V 18650 Li-ion Battery Charging & Discharging Board MCU Development Module

Features:
1. This module can continuously provide power to the microcontroller through a 3.7V 18650 lithium battery and a 5V type-C input port power supply.
2. It can also be used as a power supply module with appropriate electrical parameters (not directly connected to the motor).
3. The module outputs three different voltage levels of 5V, 3.3V and 1.8V in the form of a row of 2.54mm pitch pins, which can be used as power supply in different scenarios.
4. The module comes with 4 signal lights to distinguish the current battery level and the battery charging state.
5. Easy to use, the module supports both drilling and placement, and there is a saklar toggle on the module that can control the output.

Parameters:
USB port input voltage: 4.7-5.5V
Battery working voltage: 3.1-4.3V
Battery full charge voltage: 4.15-4.25V

Maximum output current:
5V: 1.5A
3.3V: 400mA
1.8V: 150mA
Cut-off output voltage: 3V battery
Simultaneous discharge while clearing: the output voltage is about 4.5V 400mA MAX
Battery connection method: parallel connection (Can connect one or two batteries)
LED indicator light description (right->left):
Discharge mode:
LED1: Remaining battery capacity ≤ 25% (flashing indicates that the battery is less than 3% and needs to be charged)
LED2: Remaining battery capacity ≤ 50% LED3
: Remaining battery capacity ≤ 75%
LED 4: Remaining battery capacity ≤ 100%
Charging mode:
LED1: Flashing indicates that the current charging level is less than 25%
LED2: Flashing indicates that the current charging level is less than 50%
LED 3: Flashing indicates that the current charging level is less than 75%
LED 4: Flashing indicates that the current charging level is less than 100%, and the constant light indicates that it is fully charged.

Usage and precautions:
1. The module is equipped with a toggle switch that 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.
2. If the battery protection chip triggers the protection, reinstall the battery or turn on the switch indicator light, it can be turned on by connecting to the USB port for charging;
3. After the output is turned off, the indicator light will remain on for about 30 seconds before turning off;
4. Note that the battery connection on the module is parallel, and the battery is not connected in series with the module;
5. Pay attention to distinguish between positive and negative electrodes, because reverse connection can burn the module (the positive and negative electrodes are screen-printed on the board, and the battery should be installed strictly according to the instructions on the screen);
6. Be careful not to short-circuit the input and output interfaces;
7. Note that the output interface of the module cannot be directly connected to the motor.

Product test:
Battery: 18650 with internal resistance Ω 70M.
Battery capacity 2000mAh: can supply 5V1A.
Battery capacity 3000mAh: can output 5V1.5A.
The maximum battery input voltage is determined by the load, and the maximum output current is 1.5A. The parameters can be obtained from the following formula: LIN = (5 * lout) / (0.7 * Vin).
It is recommended to use 18650 batteries with a total capacity exceeding 1500mAh.

Package includes:
1X module