toxibunny wrote:I've ran mine from some sort of 2 amp apple charger. Nothing exploded. Hope this helps.
Thanks for the reply, but I was thinking about upper/lower voltage limits. The amps are not important here, unless its lower than the Pi requirements.
The amp rating means the maximum current the powersupply can deliver, if the amp used is to high the voltage on the powersupply will drop.
However I found the following statement on another website:
http://www.petervis.com/Raspberry_PI/Ra ... ltage.html
"The absolute minimum voltage required for the Raspberry Pi Board B is 4.8V. If the voltage is lower than this then a number of things can happen. When I experimented with my laboratory grade variable power supply, I noticed that the first main problem to occur at 4.6V was that the USB keyboard was no longer detected at boot time. At 4.4V the mouse wasn't detected at boot time. Whilst the Raspberry Pi appears to operate at lower voltages, when running video intensive applications, when the GPU is driven at maximum, the Pi can reset itself or lock-up with a blank screen."
As for maximum voltage, I still havent found a solid answer. I have read someone stating 5.2V is ok, but dont go over 5.5V. But there are also youtube videos of people booting their Pi on alkaline AAA batteries. These are 1.5V fully charges, so it equals 6V. But maybe the voltage drops below 5.5V at 500mA+.