Powering the Raspberry Pi via
Pogo Pins: Powering the Raspberry Pi via pogo pins, without using any GPIO resource, compatible with Raspberry Pi 4B / 3B+/3B, etc.
Real time monitoring: Monitoring the ba-tte--ries voltage, current, power, and remaining capacity via I2C. When the voltage dips too low, it is possible to save files properly and then shut down the system by software, to avoid any data loss