Working external battery pack?

[mario]

hello @Bibil10,
you can find some suggestions here:

Working external battery pack?

Any suggestions for external usb-c battery pack to connect to PPM? Or did anybody try to connect external battery and see it working/charging? I have 2 different external USB c battery pack (both linked below) and none of them seem to charge the PPM. (the charging icon next to the battery does not appear when connecting the battery to usb-c power source). I will try and post video later whenever possible. Really surprised that first one below didnt work

and some more general info on power requirement here:

PPM Power requirement

Does anyone know how much power the PPM is pulling via the USB-C? I have a couple of Bluetooth Speakers (inc Beolit 15) which can power some devices via USB-A output, but I am guessing this won’t be enough for the PPM. Also wondering about high output power bank battery as an alternative to keep it going outdoor for more than the 2-3 hours I am expecting. Thanks in advance

Mario