Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Batteries Die After One Year

I've had these phones for a year now and the batteries are already dying. After 30-45 minutes off of the base both phones begin beeping and last about 5 more minutes. Pretty ridiculous given the cost and that my old panasonic cordless still lasts about 10 hours off of the base.Of note, when these were new they did have great range...