To be honest no, Energizer batteries are not more cost effecting in the long run. Battery technology is a very competitive area and none of the major companies (energizer, Duracell, etc.) has a major lead over the others. Even the "generic" brands are quite good, so I would suggest going for the lowest price rechargeable battery.
A Duracell, because they are more adaptive to all devices requiring batteries.
Energizer batteries are used exclusively to power the Energizer Bunny, which keeps going and going and going...
No, a pack of AA rechargeable batteries are not expensive. A pack of four generally runs between 7 and 12 dollars and are manufactured by Energizer or Duracell.
Internally nothing. Merely different manufacturers.
The difference between Duracell and Eveready is largely in their design and branding. Both use very similar principles in the way their batteries are constructed.
Procell are charged slightly more. A normal 9V duracell is 9V Procell is charged to 9.5V
There are several different manufacturers of AAA batteries and chargers. Sanyo, Duracell, Energizer and Rayovac are some of the larger and more well known brands. There is no major difference between the brands of chargers since all of them perform the same function of charging AA batteries. The only real difference is type of rechargeable batteries, for example NiCd or NiHM have different charge capacities.
There is really no difference. Duracell use DL and Energiser and others use CR. The important thing for you is the number 2025 for your appliance. Apart from the price though, check the AH. That in plain terms is the amount of fuel in each one. The energizer has 160AH and the Duracell 150AH last time I looked. That, all things being equal, should mean the enegiser would last about6% longer.
The electrolyte in Duracell batteries, particularly in alkaline batteries, is a mixture of potassium hydroxide (KOH) and water. This alkaline electrolyte facilitates the movement of ions between the anode and cathode during the battery's discharge process. In other types of Duracell batteries, such as lithium or nickel-metal hydride (NiMH), different electrolyte compositions are used specific to those chemistries.
CR lithium batteries are cylindrical in shape and typically used in watches, calculators, and some small electronics. DL lithium batteries are coin-shaped and commonly used in medical devices, cameras, and other portable electronics. The main difference is their size and shape, with CR batteries being cylindrical and DL batteries being coin-shaped.
The major difference between batteries is that they come in two basic kinds. One is 'Alkaline' and the other sort is variously described as 'heavy duty', or 'super heavy duty', or 'zinc chloride'. The Alkaline ones have double the capacity, or more if there is a heavy current drain on the battery.
The batteries are dangerous to swallow.