X725 Power Management Board board for two 18650 batteries for Raspberry Pi in general works and does not work!
What doesn’t work
– the function that can be activated by jumpers does not work completely – protection of the battery against over discharge, on or off when the power returns
– charging does not work when Raspberry Pi is on if the voltage of the accumulators is already approximately 3V (for example at 3.6V it is charging)
– The CHG light flashes constantly, that is, the battery is constantly discharging and charging, even if the power is on; in my opinion this should not happen
– Power comes on for anything – I pull the Ethernet cable out of the Raspberry Pi when it’s off – the x725 turns on!