The title says it all you need to know. Some will perhaps ask why the scoring with two stars as hard turns. Which is simply based on the fact that I actually always use this toothbrush and the half-life of this electric toothbrush is getting shorter. I or the battery simply no longer hold for the moment and I assume Brown that they specially not a LiPo battery block for example. Furthermore there very long until the toothbrush is loaded vollatändig lasts. The with revised engine is slightly stronger than the old one and who is sent artisan can also change the battery if it is defective.