Get a rechargeable one with the edge trimmer on the back, I've had a 3865XL model for about 25 years, I use it everyday, it won't break or wear out. A few years ago, the nicad batteries wouldn't take a charge as well. I bought a couple of AA nicads with solder tabs at a swap meet. Soldered them in and its good as new. I'm 60, this shaver may out last me.