Quite easily built with components similar to what we're discussing. I'll look at buying in some li-po's and a few components and have a go at building something you guys can use. I have no real purpose for battery power or regulation myself, but hopefully I can share the schematics and be useful t...

An update: I have successfully booted my Pi with FHD HDMI monitor, keyboard and mouse. :) Everything is working as it should and the voltage changed. I measured ~5.18 V when using only keyboard and ~5.09 V when I added a mouse. It's still a bit hugh, but it's within the safe zone. I don't think 5.2...

Maybe the PSP-PSU is just too good! :lol: As said I tried resistors, with no difference. Maybe there is built in voltage detection? Adding too much resistance I think could make it more unstable though, it probably has the limits of a regulator. To low voltage/too much adjustment and it just can't d...

I somehow posted this thread 2 times, here's the link to the other one: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=26&t=15250&p=155595#p155595 The "works with four AA-batteries" story was only ever really true with one of the first beta boards, which featured a 5V low drop regulator. Official...

hippy wrote:There is no regulator for 5V on the R-Pi. Whatever voltage you provide becomes the '5V'.

Ah, okey. Then I should make sort of a protection behind the PSU.

I don't think I manage to wait until I get new parts, so I think I just try with my current voltage. Any thoughts?

Maybe the voltage will lower as the RPi use more power? This is all I have, and I haven't tried the RPi yet (I've had it for weeks, month). The reason for this is lack of time and money.

Hi, :) I have 5 PSP power supply units laying around, so I made a USB plug at the end of one of the chargers. I tested the PSU at forehand, and I got 5.42 V, also while connecting a resistor in seriel (auto adjustment?).Why is this? I tried to plug it in the RPi and I measured 5.31 V over TP1 and TP...

Hi, :) I have 5 PSP power supply units laying around, so I made a USB plug at the end of one of the chargers. I tested the PSU at forehand, and I got 5.42 V, also while connecting a resistor in seriel (auto adjustment?).Why is this? I tried to plug it in the RPi and I measured 5.31 V over TP1 and TP...