Alkaline (alkaline) batteries belong to manganese-zinc cells. To create the reaction necessary for the generation of electricity, alkaline electrolyte is used in them. They are used in devices that consume little energy, for example, in electric toothbrushes , trim tabs. In this material, we will discuss in detail the device and composition of alkaline batteries, which means the concept of "capacity", and which of them are considered the best in their group.
Principle of operation
Any battery belongs to a chemical source of electric current. In order for the reaction to proceed, resulting in electricity, three different components are always needed. Two of them in the case of our battery are zinc and manganese (hence the name "manganese-zinc"). Well, the third component must necessarily be aggressive (slowly dissolve the other two components), it is as a result of this process, in fact, and produce an electric current.
Many users of these batteries are interested in what is the difference between alkaline batteries and salt pumps? For these curious readers, we will gladly answer this question. It starts with the fact that raw materials for salt batteries are much cheaper than the manufacturer, rather than for alkaline. From there, and a striking difference in their value. But in addition to the price, they differ in their operational properties. In particular, at the time of the discharge of salt batteries, their voltage drops significantly (from 1.5 V to 1, and even 0.7 to 0.6 V). Such a change can have a very negative effect on the operation of the devices powered by them, some of them for this reason earlier the line goes out of service. In elements with alkaline aggressive filler, everything happens differently, the voltage at the output practically does not decrease as the chemical elements decompose. But when their resource is worked out, they "die" instantly. And the best alkaline batteries are many times longer than the best quality salt cells.
The most common alkaline batteries are two types: AA (finger) and AAA (mini-finger). Different instruments require different capacities. What it is? The term "capacity" for power supplies determines the time during which they will operate at maximum load (indicated by the battery in ma (milliampeter / hour)). The power consumption of the device is usually also indicated on it in the same units, therefore, by comparing these two values, you can understand if these batteries are suitable for you, and how long they will be able to supply your gadget with power.
Tricks to extend the "life" of the batteries
The inquisitive mind of the Slavs did not bypass the question of how to charge a disposable alkaline battery. Here are a few ways.
- If you expose the body of an alkaline battery to physical effects (beat them against a hard surface or crumple with the help of improvised tools), it will lead to mixing of not exhausted layers of electrolyte and chemical elements. Thus, it will "come to life" for several days, even if before it was fully planted.
- To resume the course of chemical processes inside the battery can be high temperature. For this, it can be put on the battery
for a few hours, but do not try to heat it on an open fire - it's dangerous! - For a new life of an alkaline battery, you can use a normal battery charger, but you need to monitor their temperature when charging. If it's warm, turn it off. The downside of this method is that with each cycle "keep" the battery will be less and less.
As you can see, the answer to the question of whether it is possible to charge alkaline batteries is simple. It is possible, but only if very carefully!
Another type of battery is lithium .