Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worst Norelco I've had

I have been using Norelco electric shavers since 1960. This is the worst model I have had. It does not hold a charge for more than 3 shaves. I like the fact that it can be rinsed clean is the only good thing I can say about it. I have had it about 2 yrs. as compared to the others I have owned and all of the others have lasted longer. I went to buy replacement heads and it was over $31 dollars. I decided to replace the shaver instead. I just bought the norelco 7810xl and will try it within the next day or two.. I wish I could give the razor a 0 due to the fact I have been shaving with the plug in for the past several months.