Which battery lasts the longest: Duracell, Energizer, EverReady or Rayovac?
On One Hand: Rayovac Lasts the LongestDespite what advertisements might claim, a study by BatteryDatabase.com shows that Rayovac batteries last longer than Duracell or Energizer regular. Duracell Ultra have been shown to perform the best, but the increase in performance was small and uneconomical.On the Other: Check Your Expiration DatesBatteries constantly loose energy even when not in use. Often the most important element in battery life is how long it has been sitting in the package. Consider the expiration date posted on the packaging as much as you do the brand name.Bottom LineIf you are choosing from among standard brands with the same expiration date, the order of performance is Rayovac, Energizer, Duracell and EverReady.
