Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Poor Battery Life

After reviewing Consumer Reports I decided to purchase the EXS 9960 and the EXS 9966...big mistake. Though the range and sound quality have been satisfactory, the battery life is poor at best. What is so disappointing is that I followed the instructions word for word. In addition I purchased additional batteries for each phone under the assumption that I would run the phone/battery down then have a fresh, recharged battery waiting in the wings. I purchased the phones less than a year ago and they both fail to get me through more than 30 minutes of talk time.