Review on ACDelco UltraMAX AAA Batteries: 20-Count Alkaline Powerhouses with Advanced Technology and 10-Year Shelf Life by Sony Bailey

To be honest I haven't used these batteries long enough to speak of durability. However, I suspect the battery life is at least decent (if not I'll change the rating) and based on that and the current price it's very good. The batteries are made in China by PowerMax USA. The AC Delco brand is licensed to PowerMax. I tried to find the output by current (not voltage) but didn't see it. I wanted to compare it to the batteries I normally use. Since they're alkaline, I suspect they'll perform better than rechargeable ones, but apparently they're not rechargeable. I find the durability of 10 years very attractive. Obviously there's no way to fully verify the application, but I'm assuming a good expiration date. It is very annoying to need new batteries only to find that they are dead before using them. Seem to be good batteries at a very good price. 5 Stars.