I just measured the voltage on the power supply connector for our HP 2730 Elitebook and found the center pin also measures 19V to the outer sleeve. I can't get the probes in to measure the center pin vs the inner sleeve. YMMV
On Mon, Apr 6, 2020 at 6:57 PM Craig via Mercedes <mercedes@okiebenz.com> wrote: > I have been using our HP 8460P Elitebook laptop to connect to church and > other meetings. > > Yesterday I noticed the laptop was running on battery when I had the > power supply's DC cord plugged into the laptop. I measured the voltage at > the DC power plug and found the power supply was indeed outputting the 19 > VDC it was supposed to. > > I had originally thought the slender center pin was the power connection, > but I found there is an inner cylinderical ring which actually carries > the power along with the cylinderial ring on the outside of the plug. > > Does anyone know what the slender center pin does? > > Thanks, > > > Craig > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > -- OK Don "Whenever you find yourself on the side of the majority, it is time to pause and reflect." Mark Twain “Basic research is what I’m doing when I don’t know what I am doing.” Wernher Von Braun 2013 F150, 18 mpg 2017 Subaru Legacy, 30 mpg 1957 C182A, 12 mpg - but at 150 mph! _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
