Powermax ACDelco UltraMAX 20-Count AA Batteries, Alkaline Battery with Advanced Technology, 10-Year Shelf Life, Recloseable Packaging

Customers find these batteries to be of very good quality and appreciate their long-lasting performance, noting they outperform regular alkaline batteries. They work well in various devices, with one customer specifically mentioning their effectiveness in room deodorizers and clocks. Customers express confidence in repurchasing these batteries.