Rayovac High Energy 9V Batteries (8 Pack), Alkaline 9 Volt Batteries

Customers find these 9V batteries to be of good quality and value for money, working reliably for years. The battery life receives mixed feedback - while some say they last a long time, others report them lasting only two weeks. Similarly, the voltage performance is mixed, with one customer noting they measure in the low 9's, while beeping issues are also mixed, with some customers reporting no more beeping while others mention their alarms chirping in the middle of the night.