1. Size. AA batteries are relatively small and are generally used in more portable machines. The disadvantage is that the capacity is too small and can only reach 1/4 of the AA batteries of the same brand. AA batteries are larger and are used in tape players and cameras. On a machine with a lot of power. AA batteries will be marked "AAA" and AA batteries will be marked "AA".
2. AA battery, the general size is: diameter 14mm, height 49mm; AA battery (i.e. AA, R6) is one of the battery types, its general size is 14mm diameter, height 50mm. AA batteries are widely used in many small electrical appliances and digital products due to their small size and moderate capacity. The maximum capacity is 2700mAh.
The AA batteries sold on the market today include: nickel metal hydride rechargeable batteries, nickel cadmium rechargeable batteries, alkaline zinc-manganese batteries (referred to as "alkaline batteries"), ordinary acidic zinc-manganese batteries (referred to as "ordinary" Battery") etc. We can understand the basic performance of AA batteries through the letters on the battery, so that we can decide what kind of battery to use on what device.
3. AA battery, AAA battery, is an American dry battery standard. It is compatible with mainland China’s AA battery or Taiwan’s AA battery standard. The battery is cylindrical in shape, 43.6 mm high and 10.1 mm in diameter. Is a common battery, smaller than AA batteries. It is often used in electronic products that are smaller in size and consume less power, such as MP3 players, small remote controls, etc. There are both disposable alkaline batteries and rechargeable nickel-metal hydride and lithium-ion batteries
4. AA is what people usually call AA batteries. The general size is: 14mm in diameter and 49mm in height. In Japan, it is called "Single 3-shaped" AAA, which is what people usually call AA battery. The general size is: 11mm in diameter and 44mm in height. Japan has other models called "単4-shaped"
Let's talk about the common "AAAA, AAA, AA, A, SC, C, D, N, F" models
AAAA models are rare, and disposable AAAA Energizer alkaline batteries can occasionally be seen, usually used in computer pens. The standard AAAA (flat head) battery has a height of 41.5±0.5mm and a diameter of 8.1±0.2mm.
AAA type batteries are more common. In the past, MP3 players mostly used AAA batteries. The standard AAA (flat head) battery has a height of 43.6±0.5mm and a diameter of 10.1±0.2mm.
AA type batteries are well known to everyone. Digital cameras and electric toys are indispensable for AA batteries. The standard AA (flat head) battery has a height of 48.0±0.5mm and a diameter of 14.1±0.2mm.
Also, AA battery is about as thick as a finger, and AA battery is about the same thickness as an ordinary pen:
Battery refers to an electrolyte solution and metal electrodes that contain electrolyte solution and metal electrodes to generate electricity. A current cup, trough, or other container or part of a composite container, a device capable of converting chemical energy into electrical energy. It has positive and negative poles.
Battery models
Generally divided into: No. 1.2.3.5.7, among which No. 5 and No. 7 are particularly commonly used. The so-called AA battery is No. 5 battery, and the AAA battery is No. 7 No. battery.
D-type battery (large battery/LR20/AM1) diameter ф34.2; height 61.5mm
C-type battery (size 2 battery/LR14/AM2) diameter ф26.2 ; Height 50.0mm
AA type battery (AA battery/LR6/AM3) diameter ф14.5; Height 50.5mm
AAA type battery (AA battery/LR03/AM4) Diameter ф10.5; height 44.5mm
AA/2 battery (AA battery LR1/AM5) Diameter ф11.0; height 30.0mm
AAAA battery (AA battery /LR61/AM6) diameter ф8.0; height 39.5mm
AAAA/2 type battery (small AA battery/LR61/AM6) diameter ф8.0; height 28.0m