Yes. I have done this forever. They have to be sharpened and your clippers also need to go too, so they can be checked over, cleaned well and in the best working order.
I'd used the same clipperman for years..but can't find him now, don't know what happened to him, but he was fantastic.
I also take blade off after clipping, clean out hair from clippers/blades, and then make sure they are wrapped well before storage.
It will extend the life of your clippers by years.
Most of them will not do cordless, from what I am seeing now?
If you don't know of any? Call local barber shop or dog grooming place as they will know who is good to use.
Horses make me a better person.