I had also charging issues with my BV9500 Pro (BV9500pro_V1.0_20180827_20180904-1729 / s/n BV9500pro0000924) ,
I have just replaced the Cable by another one , keeping original Blackview power supply, seem's Ok now !
Be aware that "intercom" application must be closed before charging, otherwise it will take longer for charging.
Many users solve this issue by replacing the cable, many by replacing both charger and cable, many closing the intercomm app, many others can't solve this issue performing all of these things.
A software fix willl be an huge part of the solution, that's why the issue has been tracked
It's nice that the issue has been tracked, but a bit more information about the problem would be helpful.
If some people can solve the issue by replacing cable, charger, both cable and charger or closing intercom app (BV9500 PRO only btw!!), I'd be highly interested what went wrong, since many of us can't charge quick and it takes between 9 - 17 hours for a full charge!
Sorry but we bought your product and it does not work as promised - at least we need more information like when there will be a software update