Power Board

We use a 4-Way 18650 Battery Holder.

Pictures

Power Module Top Power Module Bottom

Operation

ON/OFF via Push Button

The push button controls the module switch.

  • Make a light press to turn the module on.
  • A 3 seconds long press will turn it off.

LEDs Current and Charge Indicators

  • When charging, LED1, LED2, LED3, and LED4 will blink until the batteries are fully charged.
  • During discharge, the LEDs represent the current intensity.

Mode Switch: Normal/Hold

  • In Normal mode, the board will auto shutdown when the current is too low.
  • In HOLD mode, it keeps outputting and does not shut down until the over-discharge protection is triggered.

Specifications

Input Ports for Charging

  • 1 micro USB port
  • 1 USB type-C port

Output Ports

  • 5 output ports 5V/2A, to solder
  • 5 output ports 3.3V/1A, to solder
  • 1 USB output port

Other

  • 4 slots for 16850 batteries
  • 4 LEDs
  • 1 ON/OFF push button
  • 1 mode DIP switch: Normal/Hold

Safety and Limits

  • Overcharge protection
  • Discharge protection
  • maximum peak current: 3A for short period of time. depends on the quality of the 18650 batteries.
  • Pay attention to battery polarity when installing. The + and - are clearly marked on the board, and the wrong direction will burn the module.