How many sizes of batteries are there in a ***? Where are they used?

Generally divided into five types: 1, 2, 3, 5, and 7:

No. 1 battery: Model D, diameter 32.3±0.2mm, height 59.0±0.5mm , commonly used in flashlights, gas stoves, etc.;

No. 2 battery: Model C, diameter 25.3±0.2mm, height 49.5±0.5mm, relatively rare, with more lithium batteries, commonly used in some cameras, amplifiers Speakers, etc.;

No. 3 battery: Model SC, diameter 22.1±0.2mm, height 42.0±0.5mm, mostly used in power tools, cameras, battery cells in battery packs and imported equipment;

No. 5 battery: model AA, diameter 14mm, height 49mm, voltage 1.5V, capacity approximately 2400mAh, the most commonly used battery, widely used in flashlights, cameras, remote controls, toys and other products;

No. 7 battery: model AAA, diameter 11mm, height 44mm, voltage 1.5V, capacity approximately 1300mAh, commonly used in remote controls, toys and other products.

AAAA: Height 41.5±0.5mm, diameter 8.1±0.2mm, usually disposable AAAA Energizer alkaline batteries or used in computer pens, rare;

< p>A-type battery: height 49.0±0.5mm, diameter 16.8±0.2mm, commonly used in battery cells in battery packs. Nickel-cadmium and nickel-metal hydride batteries for old cameras are almost all 4/5A or 4/5SC batteries. core.

N model battery: height 28.5±0.5mm, diameter 11.7±0.2mm, this type of battery is uncommon;

F model battery: height 89.0±0.5mm, diameter 32.3±0.2 mm, a new generation of power battery products, are generally used in battery cells for electric mopeds.

Reference materials

Battery_Baidu Encyclopedia