Hi guys this is my first post (I hope I've put it in the right category)! All I want to know is will this http://www.amazon.co.uk/PortaPow-Mains- ... 355&sr=8-1 power supply work on the raspberry pi?
hi mahjongg,mahjongg wrote:Hmmm. it actually states its "for a raspberry PI"
At 1A and 5V (I assume these are actual values not "chinese labeling") it should be fine, as long as the 5V output doesn't dip under 4.9 Volt at maximum load, and the amount of ripple on the 5V is negligible.
What is important is the resistance of the cable and plug. I have three leads, all about 1 ft, the resistance per connection are 0.5R 1.5R and 2.5R. So for the worst cable that is in effect 5R in series with the power supply. So the worst one would loose 3.5V if the Pi took 700mA. In fact I measured the Pi's consumption at about 300mA. Even so that is a voltage drop of 1.5V, the best cable I have only looses 0.15V.kriston wrote:I have found that the length and quality of the cable matters if you expect to plug anything into the USB ports of the Raspberry Pi. I have lots of cables but the only ones that work reliably are of the three-foot variety.