It's hard to imagine what our life would be without compact batteries, known by everyone as "finger batteries". Children's toys, remotes from TV sets, players, cameras and flashlights draw their strength in these small cylinders. Despite such a wide range of habitats, it is not always possible to find the most suitable food item. This article will help you understand the battery diversity.
Finger batteries AA
Although all finger batteries are externally different from each other only by the design of the label, they can vary greatly in performance. The reason for this lies in their inner world, or rather, in the electrolyte. There are the following types of batteries type AA:
- Salt . These are the weakest and short-lived finger batteries, the capacity of which is sufficient only for the operation of low-power devices (control panels from music centers and televisions, for example). Strictly speaking, this type has long been outdated, but still does not leave the market due to a very attractive price for the average consumer. At the same low cost, all the advantages of salt finger batteries are exhausted, since other types are still much more economical in terms of working time. They can be stored for no more than 3 years, after which they are completely discharged.
- Alkaline . These elements can be attributed to good workhorses - affordable cost and excellent performance when working in a constant load mode can successfully use them in children's toys, players and hand lamps. And here, where it is a question of loads above the average, for example, in cameras, they very quickly leave the race. Alkaline finger batteries can keep working almost two times longer than salt (up to 5 years).
- Lithium . These are real monsters in the battery world, easily coping with a high-precision impulse load. They can be used in radios, in photo and video equipment, etc. Of course, for an increased resource will have to pay more, but the lifespan of lithium finger batteries exceeds the figure of 5 years.
Finger battery capacity
The main parameter of any accumulator is its capacity, that is, the amount of energy delivered to the circuit throughout the discharge time. This parameter is measured in ampere-hours and varies from 800 to 3000 mA / h.
Finger battery - marking
The name "finger", although understandable to everyone, is nevertheless unofficial. According to the American standard, finger batteries are marked with two big letters A. According to the system of the International Electrical Company, the marking includes the digits 03, which designate the size of the element and letters corresponding to the type of electrolyte:
- salt - R03;
- Alkaline - LR03;
- lithium - CR03.
Russian finger batteries are standardized products and are officially called "element 316".
Disposal of finger batteries
Today, no family can do without portable equipment, and the issue of proper disposal of old batteries is especially acute. The period of decomposition of chemical elements of nutrition takes a long time, during which they poison the environment with salts of heavy metals. Therefore, it is so important not to throw out spent batteries in garbage containers, but to take them to special reception points, where they will undergo processing by all rules. In practice, the points of reception of batteries in the post-Soviet space function only in some large cities. In small settlements, fighters for the environment have to simply store them up to better times.