The number of batteries sold every day in the world is estimated at millions. The lion's share of this number is accounted for by alkaline batteries - batteries, in which the alkali solution (potassium hydroxide) plays the role of electrolyte. Their advantages include low cost, the ability to work continuously in a constant load mode and maintain a charge for 3-5 years.
AAA alkaline battery
In devices with low power consumption, for example, TV and video control consoles most often use alkaline batteries of the AAA size, called still "little fingers" or "mini-finger" batteries. According to the standards of the International Electric Commission, they are labeled LR6. The capacitance of these elements is sufficient to maintain the functionality of the remote control for 1-2 years.
Alkaline finger batteries
AA-size batteries are commonly known as finger fingers , they are universal "workhorse" and find their application in musical children's toys, portable receivers and players, flashlights, telephone sets, office equipment and many other devices. For long-term work in photographic equipment, which requires maximum energy output, special photo elements have been developed, which you can learn from the prefix "photo" in the title. The capacity of conventional cells with an alkaline electrolyte varies from 1500 to 3000 mA / h, and the voltage produced by them is 1.5V.
Alkaline D-type batteries
Batteries type D, popularly known as "barrel" or "barrel" are most often used in radio receivers and a radio transmitter, a Geiger counter and radio stations, that is, where large capacity is needed. By the standard of the International Electric Commission they are labeled LR20. The operating voltage is 1.5V, and the capacity can reach a level of 16000 mAh.
Alkaline and alkaline batteries - differences
Quite often sellers of technology operate with the term "alkaline" batteries. Although this name sounds quite impressive, it comes from the English word "alkaline", which stands for all the same alkali and is used in the marking of alkaline batteries of foreign manufacture. Thus, both alkaline and alkaline batteries are no different from each other, and these two names are conversational synonyms.
The difference between alkaline batteries and salt
Although both salt and alkaline batteries consistently occupy the leading positions in sales, they have significant differences :
Salt:
- discharge completely in about 2-3 years of storage;
- more subject to fluctuations in temperature, which significantly shortens the shelf life;
- under the influence of internal chemical processes at the end of the discharge, they are often "letting in", pouring in the equipment contacts and packing everything around, so they can not be left in unused devices categorically;
- have a relatively low capacity and running time;
- do not withstand high loads and are suitable for use only in devices with low power consumption: watches, kitchen scales, remote controls;
- belong to a low price category.
Alkaline:
- keep working capacity for 3-5 years;
- practically do not react to temperature fluctuations;
- do not leak;
- the specific capacitance of alkaline batteries exceeds the analogous parameter of salt batteries by 1.5 times with low-load loads and by 4-10 times with high-precision loads;
- suitable for technology with any level of energy consumption, but the best results are shown under conditions of constant load;
- belong to the average price category.