That actually is what I do have... I had a serious case of ETF (Electronic Trinket Fever) and wasted an unreasonable amount of money on this now mostly worthless collection. I have a hangar full of ancient computer equipment. Some of it has become very difficult to find and have some historical significance. One of these days we will move to a smaller place and I will have to dispose of most of it.
You can probably find a power supply that will have enough interchangeable plugs to handle most of those old laptops. Unfortunately, old laptops can be difficult to revive. The CMOS battery will have gone dead years ago, so you will get some error messages at it starts up. If the hard drive has not been run in years there is a very good chance that it will have problems. Old desktop hard drives often have difficulties as well depending on how they were stored.
Here is a universal laptop power supply that I have had good luck with:
https://www.amazon.com/gp/product/B0132ST35Y/
It comes with 16 tips, but you may have to purchase an additional set of tips or a different power supply to get the tip assortment that will work best for your laptops.
Thanks for the link, I’ll give it a try.
I know what you mean about the ETF because I’m a natural packrat. I have stuff I’ll never ever use again but can’t seem to part with.
I’m talking tools at least 100 years old that I’ve forgotten what they were used for. Other things like an updraft carb for a 1950’s International farm tractor. None of it is worth anything.
Two years ago I got rid of half of my “treasure trove” as my wife called it and it was like ripping off a limb. I’m at the point that I need to bite the bullet and dispose of it myself or leave my kids a mess to dispose of.
I tell ya, its enough to make a man want to take up drinking again!
You ought to watch the YouTube channel “LGR”, he’s a guy my age (mid-30’s) who does a lot of old builds of DOS machines and other 80s and 90s tech. If you’re looking to throw stuff out, consider donating it to his channel. He has a video on his channel where he and some other guys dug through a warehouse full of old PC stuff, “American Pickers” style, so he’s down for that sort of thing too, I think.