The battery is one of the most common compact sources of autonomous power supply. Despite the active development of batteries, the importance of simple batteries in the market is still decisive. Unfortunately, they shrink too quickly, especially with heavy use. At the same time, many fellow citizens have a natural question: is it possible to somehow correct this situation? Is it possible to "fill" the batteries in any way, and preferably without the use of special tools and devices?
The key question is: can the batteries be recharged?
The answer is yes, the batteries can be recharged. However, in this case, one should take into account the fact that its structure and materials were not initially provided for such a possibility, so that the number of recharge cycles is much less than that of batteries. In the case of batteries, the efficiency of replenishment will also be much lower. In addition, there are several important points to consider when trying to charge. However, first things first.
How exactly the charging process takes place
There is nothing fundamentally complicated in the process of recharging the batteries. If you have an assembled circuit at hand, then the whole operation will take from 2 to 3 hours. All that needs to be done (after observing a number of nuances) is to install the battery in the circuit and apply a voltage of 220 volts to the transformer. After an attempt to refuel the battery, the voltage is checked without fail. It must be at least 1.7 Volts.
What are the rules and subtleties for charging batteries
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Firstly, you need to remember that such a "popular" way of recharging batteries will not allow them to be fully charged to 100% after restoring their working capacity. Secondly, there are three nuances that must be taken into account and followed to the letter. First, with each new attempt to charge, the maximum capacity is reduced by 30% of the current one. Second, the battery can withstand 7-8 (at best 10) charging operations. Third - before trying to charge the battery, you should check the voltage in it. If it is below 1 V, then such a power supply can only be disposed of.
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How to assemble a charging circuit
First you need to prepare everything you need. The key part of the future circuit is a 2.4 volt step-down transformer. You can either make one yourself, or buy it (it costs a little). Next, we need a diode (preferably D234B), a capacitor with a capacity of 10 μF, a 3.5 V voltage light bulb. All of the above is assembled into a single structure according to the diagram below. Any used electrical appliance can be used as a housing. For work, you need a soldering iron and flux, glue, electrical tape.
If you want to know even more interesting things, then you should read about how to light a match from a battery: A trick that can come in handy at home or while hiking.
A source: https://novate.ru/blogs/150920/56034/