Why are you continuing to lie? I never said you can connect directly to it. The parent comment said
“You can use any USB battery with it, just plug it into the battery pack.”
Which is absolutely true. You claimed it was false. I corrected you. I’ve made no other claims about wanting a Vision Pro, loving Apple, or anything else that you are insinuating. Just take the L dude.
I could not find any resources that charging a the Vision Pro battery from an external battery is a safety hazard. It’s using USB spec for power delivery, as long as it receives the correct voltage and current it wouldn’t care what is on the other end.
Sure, some cheap battery banks are not designed to be charged and discharged at the same time, but this is clearly not the case here.