As a rule, when buying new batteries, we ask the seller the only question: "Do they hold for a long time?" Although most often we do without it, we just buy the first ones we get. However, battery to battery is different. Different types of these compact energy sources have different characteristics, their advantages and disadvantages. Separately, I want to talk about such an invention of man as alkaline batteries.
They are alkaline. The closest to them in terms of characteristics are alkaline-manganese, as well as manganese-zinc energy carriers.
To begin, consider the main advantages of this type of battery. Among them are the following:
low cost;- in conditions of high current and low temperatures, they show themselves much better than Heavy Duty or LeClanche (batteries that use other types of electrolytes);
- distributed almost universally, are available in large quantities;
- retain the value of the impedance during discharge.
Of course, there are also drawbacks: a high mercury content and a falling charge curve. However, with proper operation, these shortcomings are not critical.
The use of alkaline electrolyte in such batteries opens up prospects for a significant increase in electric capacity (for example, for AA and AAA batteries, it doubles). The life of an alkaline battery depends on how often you use the device, where it is installed, and how much energy is needed for normal operation. However, with small and intermittent loads, the alkaline battery can last up to seven (!) Years. That is, the lifetime of batteries of this type also significantly exceeds the same indicator of other disposable cells.
Alkaline batteries largely win against the background of the no less popular mercury and lithium options today. The situation with mercury batteries is becoming clear by their very name. As you know, mercury is very dangerous for the human body. When handled carelessly, such batteries can cause many problems to the user. As for lithium, they are certainly much safer than mercury. But here there are drawbacks: for several advantages you have to pay an exorbitantly high price. Constantly buying lithium batteries is not a cheap pleasure. That is why for solving everyday problems, alkaline ones are most often used.
Alkaline batteries can have various sizes, and you can easily find exactly what you need. There are several main types of batteries:
- AA (standard finger-type);
- AAA (“pinky”);
- C ("barrel");
- D (“barrel”).
Also on sale, you can find alkaline batteries of non-standard forms, for example, button batteries.
When choosing, preference is naturally given to eminent manufacturers whose products are well known in the market and have been trusted by customers for many years.