Unfortunately, I did not get IP5306. This version 1.0 of M5Stack POWER BANK will not be implemented. I'm creating version 2.0 with IP5108, which is available:
IP53108 can be purchased here, for example:
LiPol 103450 with capacity 2.500mAh here, for example:
If I create M5Stack POWER BANK, I will continue in the section projects.
This FAQS contains problem with the IP5306 and it is a pity that the M5Stack team does not respond and does not inform: the last delivery, which I received, contained the M5Stack in black with IP5306_CK, which does not have an automatic standby! Hurray!