I had 2 of them - one I bought (and quickly returned) a battery operated peppermill, since it did not last long, with 4 AA batteries. Another was given to me as a gift, with 6 AA batteries, and lasted a little longer, but was slower to use than my Perfex manual. I don't remember the brand names, but the second one is still upstairs, somewhere, in case I really need it someday. I also have 2 other Perfex - one for white pepper, the other for Szechwan. And 3 other manuals, for whatever reason!