[mothered]

Alright, cool. I was looking at the three major shipping companies, of course being; FedEx, UPS, and USPS. Each mention no shipment of "hazardous" items, the criteria of which is to be a variety of different things. But the ones that I can use are if the item is flammable, explosive, or corrosive. And FedEx just straight up won't ship lithium-ion batteries. With a "faulty battery," this seems like it might work.

Sounds good. You've done well with your research.

Fingers crossed, Lenovo doesn't nominate a carrier that does handle hazardous Items.

Thanks, I want this to go as smoothly as possible. He responded with, "Great. Do you have a box? I can send a box and shipping  label if needed." So, I'm assuming that I get to choose my own carrier and I will say that each carrier won't let me ship out the laptop. I was thinking that he might eventually recommend their own carrier, which seems like something I can't come back from.

So, I'm assuming that I get to choose my own carrier

If that's the case, be sure to select a carrier/service without tracking. Then tell them you've sent It and they should receive It soon.

As such, they'll have no way to locate Its whereabouts In transit.