this review title is: eats batteries and the content is: save money in the long run by buying a model with a chargermy husband and i have had these brushes for about a year and a half and are down to replacing the batteries about once a weekmine died within a couple months of use it would just keep shutting off during use even though the batteries were new i called sonicare they had me take it apart and clean the contacts with rubbing alcohol that did not help so they sent a replacement the new one started doing the same thing within a few weeks called again again they sent a replacement their customer service is actually pretty good and they stand behind their products but it gets old replacing batteries and replacing brushesoverall i like the performance of the brush it does a great job and my teeth really do feel much cleaneri just ordered a set of two with chargers from amazon they are more initially but i know we will save money in the long run by not having to use aa batteries every week.there are other information for this review, one is this reviewer did not purchase it and the other is 0 people think this review is helpful.