Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The 10 Year Battery Lasted 3 Years [and 2 months]

I bought this smoke alarm in April of 2008 [thanks, Amazon, for the record] because I wanted to put it in a place that's hard to reach. A 10 year battery seemed like a good solution. However, it only lasted 6 months longer than the battery in a regular smoke detector I bought at the same time. So, I got a total of 3 years and 2 months before I had to replace it. Not a good deal.