What voltage adapter should i use for my 5.4v pda?

Question

When a device (let's say a PDA) wants 5.4 vdc@whatever mA, will 5v@ the same mA or 6v@ the same mA be ok, or are the tolerances really that tight? I have a 5v source and a 6v source, both with plenty of current...

Answer 1

Both should be OK, but you might want to go with the 5V one if you're paranoid. (Lower voltage is safer than higher.) Note that voltages tend to vary anyway; what you get out of the wall can fluctuate rapidly. As long as it's not significantly off, you should be OK - most electronic devices are built to be fairly tolerant of electrical variances.





The current does matter, but you will mostly want to be sure that the adapter has a high enough current rating. Also be sure to check the polarity. Reversed polarity is very damaging, and is probably the most likely way you could mess up your equipment.