Found another one today. Dell E5430, with an i3 in it. Win7 sticker but it looks like the free Win10 upgrade ended? I did check, it does power up and go into BIOS, so it might not be a brick. Prior owner took the HD out, so I'll swap in one of my 128GB SSD's and put on Mint. Daughter needs a better laptop and if this can do google docs it might be all that she needs. Just need a new battery, new ac adapter, and maybe another 4GB (8GB should be enough I think). Ok, not quite free, would guess there's a reason why I found it for that price.
Nice Sunday project all the same.
Dang, I just threw out our stock of batteries for that model and your e6410 laptop a couple months ago. Those things were built and weighed like bricks.