Would it damage my PSP (I think it's a second gen) if I plug it into a 7.4 volt power supply, or should I get a 5v regulator?
I would like to use 2 IMR cells when I'm on the road.
EDIT: Another way to think of this question is – does the PSP have an internal voltage regulator for charging, or do I need to give it a clean 5 volts?
Best Answer
I have checked the manual for the PSP models E1002 and E1003 and it clearly states that 5 volts is required input voltage. I would highly doubt that it has an internal voltage regulator if it comes with an external AC adapter.
I worked in a large electronics store in the UK and we occasionally got people who tried to blame us for using too high a voltage setting on the universal laptop power supply we sold them. The result was that it damaged their laptop, I suspect that doing this would have the same results as 7.4 volts is almost 50% higher than correct input voltage.