Several names for AA and AAA batteries

AA and AAA are respectively a type of battery, the daily corresponding to the model of No. 5 and No. 7 batteries, the global standard is usually to distinguish the battery types by letters, such as D type batteries corresponding to No. 1, C type batteries corresponding to No. 2, AA corresponds to No. 5, AAA corresponds to No. 7; for example: AA is what we usually call No. 5 battery, the general size is: diameter 14mm, height 49mm; AAA is what we usually call No. 7 battery, the general size is : Diameter 11mm, height 44mm. There is also a five-digit model representation method, for example, 14500, 17490, 26500. The first two digits refer to the diameter of the cell body, and the last three digits refer to the height of the cell body. For example, 14500 refers to the AA battery, which is about 14mm in diameter. , 50mm high battery knowledge: talk about the common'AAAA, AAA, AA, A, SC, C, D, N, F'these AAAA models are rare, disposable AAAA alkaline batteries can occasionally be seen, generally It is used in a computer pen. The standard AAAA (flat head) battery has a height of 41.5±0.5mm and a diameter of 8.1±0.2mm. AAA batteries are more common. General remote controls and electronic scales use 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 batteries are even more well known. 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. Only one A indicates that the type of battery is not common. This series is usually used as the battery cell in the battery pack. The built-in nickel-cadmium and nickel-metal hydride batteries of the old camera are almost 4/5A or 4/5SC battery cells. The standard A (flat head) battery has a height of 49.0±0.5mm and a diameter of 16.8±0.2mm. SC models are also not common. They are usually the battery cells in battery packs. They are mostly found on power tools, cameras and imported equipment. The standard SC (flat head) battery has a height of 42.0±0.5mm and a diameter of 22.1±0.2mm. The C model is the second battery, which has many uses. The standard C (flat head) battery has a height of 49.5±0.5mm and a diameter of 25.3±0.2mm. The D model is the No. 1 battery. It has a wide range of uses. D-type batteries can be found in civilian, military, and special-type DC power supplies. The standard D (flat head) battery has a height of 59.0±0.5mm and a diameter of 32.3±0.2mm. The N model is not common. The standard N (flat head) battery has a height of 28.5±0.5mm and a diameter of 11.7±0.2mm. F-type batteries are generally used as battery cells in the battery pack, and are rarely used alone. The standard F (flat head) battery has a height of 89.0±0.5mm and a diameter of 32.3±0.2mm. Everyone noticed that the word (flat head) means that the positive electrode of the battery is flat and has no protrusions. The battery core used for spot welding of the battery pack is generally the same type of pointed tip (which can be used as a single battery power supply). The height is 0.5mm more. By analogy, I will not explain them one by one. Also, when there are a lot of batteries, the main models of'AAA, AA, A, SC, C, D, N, F'are not regular, and there are often scores '1/3, 2/3, 1 in the front. 2, 2/3, 4/5, 5/4, 7/5', these scores represent the corresponding height of the cell body, for example, '2/3AA' means that the height is 2/3 of the general AA battery rechargeable battery ; Another example is '4/5A' which means that the height is 4/5 of the general A battery rechargeable battery. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: What is the significance of the research on the balanced charging of lithium iron phosphate battery packs?