The Panasonic ES-RT 81 I have about 4 years ago (at satellite ...) because of the good reviews bought - a very good price (€ ca.59,). At first I was excited about this razor. The device is handy, quiet, the shaving performance excellent in dry and wet shaving, and the battery lasted more than 2 weeks before it had to be reloaded. The battery indicator is carried out in 20% increments, which I initially in display 0% nor more than 30 min. could shave before abschaltete. (shave in network operation is not possible !!!!) After almost 2 years of battery suddenly was suddenly empty already at 20%. I have complained about this, returned the razor and after a few days to get back to the usual good performance and display. After another year, the games began again again. At 20% the device switched off. This condition worsened continuously. Now, after nearly 4 years has been at a capacity indicator of 80% final. The battery only keeps at full charge by approximately 12 to 15 minutes and is then empty. It is time for new knives and shear blades, but then I would also replace the battery and is not worthwhile at this price. I have again my old Braun Series 1 brought out of the drawer, granted him new shear blades and use these again, the Panasonic permanent for emergencies in the closet. That is now not but that Brown would be better. I had already Braun Shaver Series 3 and Series 7, both were immediately after the warranty period defective (wanted ???). In the 3 Series, it was the long hair trimmer and the 7 Series trimmer and switch. One at the end, the cleaning stations of Brown and also from Panasonic are still in my opinion pure Geldmacherei. Cleaning the shaver under running water is sufficient. The expensive cleaning fluid you can save. These cleaning stations are pure electronic waste for me. If at all possible you should buy only devices without this nonsense. Conclusion: With a better battery of ES-RT81 a buy rating and 5 star would be well worth, so unfortunately only conditionally.