I did have one once, a good few years ago, but it was seldom used. I think I got rid of it during my grand clear-out to go to the States.

I'm not a great fan of cordless power tools of any sort. I know they're handy for awkward spaces where it's a hassle to run an extension cord, but compared to AC-operated tools they're still quite expensive and lower powered. You're also reliant upon keeping a spare battery pack fully charged all the time, which adds even more expense.