It is also known as (quadruple-A) is 42.5mm and 8.3mm in diameter. This alkaline cell weighs about 6.5g and produces around 1.5V. This battery size is also known as R8D425 (IEC) and 25 (ANSI/NEDA). The alkaline battery in this size is also known as Duracell type number MN2500 or MX2500 and energizer type number E96.
Traditionally, its consumer electronics use was very limited, and after 2010, it has made its appearance in the market where one can buy its more common AAA relative.
|ANSI/NEDA name||25D||25 A|
|Typical Capacity||300 mAh||500-600 mAh||325-500 mAh|
|Nominal Voltage||300 mAh||1.50 V||1.25 V||1.25 V|
The battery is defined as a collection of electrochemical cells connected in series. But this definition has changed in modern times now battery is known as any collection of cells that are packed in a container with outside connections provided to power electrical devices.
Chemistry of Battery
The terminal voltage of the battery cell depends mainly on the chemicals and materials used in its construction, and not on its physical size. For example, primary (non-rechargeable) alkaline batteries have a voltage of 1.5V. Rechargeable batteries NiCd (nickel-cadmium) and NiMH (nickel-metal hydride). It has an output of almost 1.25 V per cell.
Dry Leclanche (carbon-zinc), and lithium batteries are the most common types of modern batteries. Mercury Batteries had stable cell terminal voltage of around 1.35 V.
Physical Structure of Battery
They have different shapes depending on which you choose. Here is a brief review of each of them.
These are round in shape with height longer than their width. In zinc-alkaline batteries, they produce almost around 1.5 V. Other types of batteries will produce a voltage of their own 1.2 V for nickel-cadmium and the A23 alkaline battery is a stack of 8 cells in the same overall layout. This package has a positive nub terminal at the cap of the cell, and the negative terminal at the bottom of the can, the side of the can is not used as a terminal. The polarity of these can be changed according to their chemistry and whether the can is sealed from a positive or negative terminal. The common types are named bobbin, spiral and coiled.
They are designed to be rectangular. The first-volt battery in 1956 is to hold up the power needs of the transistor radio and other moveable devices. This was cheaper, lighter, and moveable than the battery holder for 6AA batteries. They also have the advantage that they can be connected backward.
Digital and film cameras often used a special type of primary cells to produce a compact product. Flashlights and portable cameras use these types of batteries.
Button cells – coin watch
Coin-shaped cells are thin as compare to their width. Polarity of it is labeled on the metal case.
Zinc-air cells (hearing aid)
These are small button cells that mostly use oxygen in the air as a reactant and they have high capacity according to their size. Each cell of these needs around 1cc of air per minute at a 10 mA discharge rate.
These types of cells were old now they are no longer available. They are only used in inheritance applications.
Uses Of AAAA Batteries
This battery size is used in small devices like laser pointers, LED penlights, powered computer styluses, glucose meters, and small headphone amplifiers. These are not as common as AA AAA so they are not easily available.