Duracell batteries should be more powerful, and more durable than NoName batteries. You'd have a fit and the same article again with Duracell to prove once with NoName batteries and then use evenly (and in the TV advertising with the drummer rabbits) to the. But if two cheap batteries last as long as an expensive Duracellbatterie, what is better? You'll have to decide for yourself, perhaps taking into account the environmental standpoint. Well, the Duracell undoubtedly.
Unfortunately, these batteries do not have the so-called Power Check, an attached on the battery "Battery tester", where you can check on the battery itself, how much power is left.