Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Does not last as long.

I purchased three RayoVac akaline batteries for smoke alarms and our wall clock. They claim to "Last as long as Energizer." Unfortunately they did not last as long. I have had regular heavy duty batteries last longer. The smoke alarm was 6 months, and the clock was 3 months. Energizer leaves them in the dust. I will give them credit in that RayoVac did replace the batteries, but I will not buy them again.