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@xzvf LMFAO 🤣
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@electrineer yeah, the side pins are both ground. I guess it's for latching onto the outer ring of the barrel connector from both left and right. But since the wires that I used as a breakout from the base/docking board (turns out that this laptop actually docks into a sorta big dongle thing for having more ports, and stationary stuff like monitors, Ethernet wires etc permanently connected) are 18AWG (i.e. 10A ampacity) I figured that I'd only need one. This laptop only draws about 2.5A anyway.
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@deadPix3l in the long run I'm probably going to order a connector for it yes, and makeshift my HP charger to be able to connect to both laptops. After all, my lab PSU's fan is pretty noisy when under load.. and apparently HP has their DC input lines designed as such that there's so much electrical noise that my DPS5005 units can't regulate fast enough and averages out at 18.3V instead of 18.5V. HP, do you even choke bro?! Even in the business class of laptops - from years ago nonetheless! - they are and always were pretty shitty apparently. Maybe shit attracts shit and the charger of my other HP (2 HP laptops, 1 charger.. actually that sounds way to much like that scat video :v) can actually deal with the crappy circuit on the laptop itself.. I honestly don't know.
*receives an old business laptop as payment for refurbishing another one*
Hmm, this thing doesn't have a charger with it.. looks like it's taking 18.5V.. my HP laptop's charger supplies that but its barrel connector doesn't fit 🤔
Regular users: oh dear now I have to buy a charger with a fitting connector for this.. where do I even start?!
Me: Well I guess I could just remove the charging port and solder some wires straight into the board instead 🤔
But that voltage.. my HP laptop's charger is still in use and I don't really want to fuck around with that one.
Regular users: oh dear oh dear, shouldn't I just throw this laptop away?
Me: well I guess that I could just use one of the rails of my upgraded lab bench power supply for it?
Lab electronics saving the day, every day, time and time again.. fuck yeah 😎
rant