Powermax 100-Count AA Batteries, Ultra Long Lasting Alkaline Battery, 10-Year Shelf Life, Recloseable Packaging 100 Count Pack of 1

The Powermax AA batteries are alkaline batteries from Ningbo, China. They come in recloseable packaging and have a 10-year shelf life, though the package states a 7-year storage duration. While they do not have an expiration date printed on them, they are said to be a good battery. According to reviews, these batteries work well for most people and can be used in devices such as wireless microphone packs and walkie-talkies. However, some customers have experienced issues with the batteries leaking or not lasting as long as they would like. Additionally, one customer reported that these batteries caused their vibrator to be louder and die faster than usual. Overall, the Powermax AA batteries seem to work well for some people, but experiences vary widely.