Amazon Basics 8-Pack 9V Long-Lasting Alkaline Batteries for Smoke Detector, Electronics & Audio, Reliable, 5-Year Shelf Life

Customers find these 9V batteries offer good value for money and perform well, with one customer noting they match name brand batteries in quality. The battery life receives mixed feedback - while some say they last as long as other brands, others report they die quickly. Power delivery is also mixed, with some customers saying they provide as much power as name brands while others mention they don't have enough power.