[O_H_E]

salvaging old laptop battery as a power bank made me actually lol in real life.

[nrp]

It makes total sense! A half worn out battery may no longer be useful to you inside of your laptop, but can still be useful as an external power bank.

[celestialcheese]

There's a big community of people out there doing just this - https://www.youtube.com/watch?v=Ao1mwEcPsEk

https://cellsaviors.com/blog/how-to-salvage-18650-cells