Quote:
Originally Posted by luka
The RPi foundation recommends a 3A power supply for the RPi 4. However, 1.2A is reserved for the various USB peripherals (see this). That leaves 1.8A as the maximum consumption of RPi 4 itself. This is consistent with the maximum power consumption tests that can be found on the net (see this one for example).
In other words, RPi 4 will never use more than 1.8A and so it will happily run from a 2A power supply. But, if you start attaching cameras etc to its USB ports you may need a larger power supply. |
But a Pi 4 won’t even boot unless it has the power it needs 5.1 volts DC. at 3 amps.