Instruct: Classify the given Amazon review into its appropriate rating category
Query: Battery life is low

Works well, but the battery ran out super fast. I only used it about five times and kept it on for maybe 15 minutes each time. It was always switched off when not in use. Now the battery has died and I’ll need to start with the second one and unfortunately purchase more. Is great otherwise, but shouldn’t fade so fast since I rarely use it.