Features:
1. The module can be realised to supply power to the microcontroller through the 3.7V 18650 lithium battery and the Type-C port input 5V power supply.
2. Can also be used as part of the electrical parameters of the appropriate module power supply (not directly connected to the motor).
3. Module in the form of 2.54mm pitch pin output 5V, 3.3v, 1.8V three different voltages, available in a variety of scenarios for power supply.
4. The module has 4 indicator lights, used to identify the current battery power and battery charging.
5. Easy to use, the module supports charging and discharging at the same time, there is a toggle switch on the module to control the output.
Product Parameters:
USB port input voltage: 4.7-5.5V
Battery operating voltage: 3.1-4.3V
Battery full voltage:4.15-4.25V
MAX output current:
5V:1.5A
3.3V:400mA
1.8V:150mA
Cut-off output voltage:Battery 3V
Side discharge: output voltage is 4.5V MAX 400mA or so
Battery connection mode: parallel connection (battery can be connected to one or two)
LED Indicator Description (Right->Left).
Discharge mode.
LED1:Battery remaining ≤25% (blinking indicates that the battery is less than 3% and it is time to recharge).
LED2:Remaining power ≤ 50%
LED3:Remaining power ≤75%
LED4:Remaining battery ≤ 100%
Charging Mode.
LED1:Blinking indicates that the current charging power is less than 25%.
LED2:Blinking indicates that the current charging power is less than 50%.
LED3:Blinking indicates that the current charging power is less than 75%.
LED4:Blinking indicates that the current charging power is less than 100%, normally lit is full.
Use and Precautions:
1, the module with a toggle switch, can control the output, when dialled to the left is off the output, dialled to the right to open the output.
2, if the battery protection chip trigger protection, installation of new batteries, open the switch indicator light is not lit, you can access the usb port charging activation.
3、After switching off the output, the indicator light will continue to light up for about 30s and then turn off; 4、Attention to the way of connecting the battery on the module.
4, pay attention to the module to connect the battery in parallel, do not connect the battery in series to the module.
5, pay attention to distinguish between positive and negative poles, reverse will burn the module (board has positive and negative silkscreen, strictly in accordance with the silkscreen instructions for the installation of batteries).
6, pay attention to the output do not short-circuit input and output interfaces.
7, pay attention to the module output interface can not be directly connected to the motor.
Product Tests: Battery: 70m Ω
Battery: 18650 with 70m Ω internal resistance.
Battery capacity 2000mAH: can output 5V1A
Battery capacity 3000mAH: can output 5V1.5A.
Battery MAX input voltage is determined by the load, MAX output current is 1.5A, the parameters can be derived from the following formula: lin=(5*lout)/(0.7*Vin)
It is recommended to use 18650 batteries with total capacity over 1500mAH.