With my old Braun Series 3 - 360 of the battery weakened. So I decided, zuzulegen me a new razor. After two weeks of heavy use I am very satisfied. He shaves faster than the old, is quieter, thoroughly and gently. The cleaning of the shaver with water is better than I thought. My old razor I could open and clean with the brush. The new I run under running water. That works very well. The battery I had to recharge again after 8 days.