The modern world is inconceivable without such necessary devices as a flashlight, radio, remote control. The functionality of these devices is provided by special batteries manufactured by many companies.
Among the popular portable power sources, it is impossible not to mention the “Krona”, the production of which began in the Soviet Union. Batteries of a similar format, borrowing their name from coal-manganese precursors, are produced now.
Content
Specifications
Krone is a combination of six series-connected batteries of 1.5 volts. In total, the circuit gives 9 Volts. All elements are built into a metal or plastic case, in appearance this device is a parallelepiped.
The most common varieties of such an element are those on which the following markings are present: 6f22, 1604, 6r61, 6lr61, mx1604, er9v, mn1604, am6, Corundum and others.
It should be noted that connecting in the wrong polarity is almost impossible. The plus is a plug, and the minus connector pin is a socket shape.
The main characteristics of a 9 Volt battery are:
- Height 48.5 mm.
- Width 26.5 mm.
- Depth 17.5 mm.
- Capacity. Up to 700 mAh.
- Voltage is 9 V.
- Weight is approximately 53 grams.
Varieties and their features
Depending on the chemical compound, the following types of Crohn are distinguished. A battery is a galvanic cell in which irreversible electrochemical processes occur. Recharging products is strictly prohibited, since such actions can cause depressurization and leakage of harmful substances. We'll figure out what kind of batteries are Crohn's.
Manganese-zinc salt. Similar batteries were mass-produced by American firms at the end of the nineteenth century. They served as a power source for radios, automotive equipment, for mining equipment, aviation and the navy.
They were replaced by salt ones: a solution of ammonium chloride was used as the electrolyte, and the electrodes were made of manganese oxide and zinc.
Now the scale of production of such elements is declining. The main disadvantage of batteries is the formation of white plaque in the compartments for batteries, which leads to the rapid failure of equipment. In addition, salt grains that have settled as a result of depressurization can be harmful to human health.
Alkaline They are the next generation of batteries, which are also called alkaline. They differ from previous products in higher cost and longer service life. The operation of these elements is possible even under intense loads.
Lithium iron disulfide. They have a solid positive electrode made of a material that is better known to us under the name pyrite. The performance of such batteries is maintained at temperatures up to minus forty degrees. Interest in them is growing from year to year.
Manganese-lithium. The electrode in such instances is made of manganese dioxide. The chemical reaction produces lithium oxide.
Air zinc. The principle of operation is based on the reaction that occurs during the oxidation of zinc by atmospheric oxygen. A promising, environmentally friendly version of the products, in addition, has a large capacity.
Lithium thionyl chloride. Do not lose their operational properties at extremely low and high temperatures.Thanks to these characteristics, they are used in outdoor meters, surveillance systems, and military and aerospace electronic devices.
Crown Batteries
The main difference between rechargeable batteries and conventional batteries is the ability to recharge them. That is, they can be charged and discharged in a limited number of cycles. The Krone battery is charged using a special charger for this size, connected to the mains.
Ni-Cd. Nickel Cadmium Batteries have a capacity of 120 mAh. Withstand more than 1000 recharge cycles. Due to the affordable price are widespread.
Ni-MH. Capacity nickel metal hydride elements is in the range of 170-300 mah. Safe for disposal, do not contain impurities of heavy metals.
Li-ion. Efficient products that are distinguished by their performance. The capacity of lithium rechargeable cells varies from 350 to 700 milliampere hours. The most promising of these, however, work qualitatively only at positive temperature, when negative, they begin to drastically lose capacity.
Li-Po. The latest invention that can be found on store shelves today. The principle of operation is based on pulse conversion. A battery is built into the case, which can be recharged from any 5-volt source, for example, from a USB port. It does not adversely affect the operation of sensitive equipment: radio microphones, receivers.
Where is the Crohn battery used?
The scope of Crohn is very extensive. They are suitable for devices operating at a voltage of 9 V, these are:
- control panels;
- radios;
- radio-controlled children's toys;
- multimeters;
- stun guns;
- dosimeters;
- GPS navigators
- autonomous fire detectors;
- some medical devices.
In general, a battery is used in areas where its benefits are invaluable. The pluses include:
- excellent performance;
- reliability and efficiency;
- light weight, compact size;
- a charge that lasts for a long period;
- environmental friendliness.
How to charge the Crohn battery
Chargers are available on the market for electrical goods to charge the Krona battery. Such devices differ in their capabilities and power indicators. However, they can be made independently: craftsmen make such devices from cheap Chinese chargers for mobile phones.
The battery is charged with a current of 10-20 milliamps, the limit is 40 mA. The charge time is calculated by the following formula:
Charge time (in hours) = Coeff. multiply by capacity (in mAh) divided by the value of the charging current. The increasing factor is selected in the range from 1.2 to 1.6, depending on the magnitude of the charging current. The smaller the current value relative to the capacitance, the greater the coefficient.
Important! You can only recharge the rechargeable Krona, that is, only when the battery is not a battery. A special designation on the model body testifies to this. It indicates the capacity and the inscription "Rechargeable".
Popular manufacturers and their features
Of particular popularity in our country are products known to us under the following brands:
- Energizer Quality copies produced for over 50 years.
- Duracell. Save a charge, are productive and durable.
- Varta. It has an increased resource of work.
- GP. Some models of this brand have the highest power indicator.
- Robiton It has excellent capacity indicators.
- Camelion. Provides stable operation of the powered device for a long period.
- Space. It is produced by a domestic manufacturer and competes with foreign counterparts.
What to look for when choosing
When choosing the right instance, it is important to pay attention to the following product characteristics:
- The ability to recharge.The battery provides an opportunity to save, because to restore working capacity it is enough to connect it through the charger to the network.
- Manufacturer country. Products manufactured in China, even under a well-known brand, are not always of high quality.
- Type of electrolyte used. The durability of the battery depends on this parameter.
When purchasing a product, check the date of production. A battery that has lain for a year on a store shelf loses about 20 percent of its capacity, so it is better to refuse such an acquisition. Experts advise not to buy batteries for future use, it is better to buy them if necessary.
Still have questions about Krone or have something to add? Then write to us about it in the comments, this will make the material more complete and accurate.
