I use a T480 (bought new a lot time ago) moderately-capable gaming PC (lol):

- 3 extended, swappable batteries + third-party external battery charger (also has an internal battery T490 lacks)

- 32 GiB RAM

- i7-8650U

- 2 TiB SSD

- Retrofit/modded magnesium top case

- I pre-acquired replacement parts like fans, hinges, backlit keyboards, and case screws

- Works with Windows 11 + Razer Core X TB3 with an RTX 3070 Ti eGPU

Needs a couple of utilities to max out CPU TDP to 25W.