52pi
https://wiki.52pi.com/index.php?title=EP-0159
TIDAK TERMASUK RASPBERRY PICO BOARD+BATERE
feature
Plug & Play
Support Raspberry Pi Pico Only
Monitor battery voltage (error ±2%), monitor battery current (error ±10%).
Monitor the charging current.
If it is not in charging mode, the power LED indicator will not be on, wake up for 5 seconds every 2 minutes to reduce light pollution.
In charging mode, it can judge whether it is fully charged, and stop flashing lights when fully charged.
In charging mode, the LED will flash when it is not fully charged.
Evenly allocate the power ratio of each LED to prevent the load from appearing abruptly.
The static power consumption is less than 10mA.
Serial output data.
Only supports 18650 lithium battery