Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Battery is wonky

This phone has a bug. Sometimes when you answer it the battery drops to zero and you can't talk to whoever has just called you! And you can't call them right back because you have to wait for the handset to charge again. Also, you can't take the phone off it's cradle for any amount of time, like if you're expecting a call, without the battery draining within about 5 or 10 minutes. Customer support is non-existent.Sound is just fine though.