I want to power a monitor using a 12V car battery.
My monitor uses 19V and 1,5A of power and it includes an AC power supply. However, I don't want to transform my 12V into 110 or 220V and then let the power supply transform it back to 19V again, because that would be stupid I think. So I found a power supply which converts 12V into 19V and it has the proper connector, but says it can output 4A. Therefore I wonder: will this power supply burn my monitor, because it supplies 4A, or will the monitor make sure it will only draw as much as it needs (1,5A)? So is it safe to use a different power supply with a monitor?