enzioprecise wrote:1 HDMI to VGA cable.
Take a powered converter instead of this cable.
enzioprecise wrote:... and plug more thing like me how long Pi can run
You need to take numbers (power consumption) of each your device from the list and calculate sum.
Even with this your "customized" sum, it is going to be an approximation, because the power consumption depends of the mode of each device (eg. the webcam is capturing or not), etc.
So, you cold take another approach - instead of calculating the values from specifications, measure them.
Put everything together (without Power Bank) and measure overall current for various use cases. Then estimate your ratio of these use cases and you'll get quite precise average consumption. At this point you have easy math to multiply averaged consumption with authonomy needed... and the result is required Power Bank capacity.
Best wishes, Ivan Zilic.