The lithium-ion battery how to charge first time. Li-ion battery: how to charge, types and recommendations

Modern man cannot imagine life without a mobile phone, tablet, laptop, portable drills, screwdriver, flashlight and other devices, which can operate both from mains and from battery. Often such devices use lithium-ion power sources.

Many will ask why this type of energy storage is used most often in electrical devices. The answer is quite simple and obvious – lithium-ion batteries are small and have sufficiently large period - from 300 to 2000 cycles charging and discharging. It is because around us there are many sources of food of this type, everyone should know how to charge Li-ion battery.

What is a Li-ion battery

Despite the fact that every person faced with such a power source, not everyone understands what this battery is and how it works. The easiest and most common option is the lithium-ion power source for mobile phones. It has the following structure: the top is a controller for controlling charge-discharge, and below the battery element (the Bank).

In 99% of batteries for cell phones is only one battery element, the specialists jargon often enough to call it the jar. The nominal voltage of the power source is 3.7 volts.

The Device also has a special controller (normal Board chip), through which does not happen with rechargeable batteries. Because the manufacturer has done everything possible to avoid emergency situations that would lead to rapid failure of the power supply.

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How to load first time

Many of you probably remember how everyone said that a new battery should be brought to full charge, then fully charge, and to do so three times. Such a process first charges really is, he really needed, but for batteries Ni-Cd and Ni-MH. Those batteries put in enough ancient phones, which are currently not available.

How to charge the Li-ion battery for the first time, knows far not everyone and begins to carry out the procedure of complete discharge. Batteries of this type are arranged quite differently, and the process of deep discharge them very much harm. That is why the devices are sold with a charge of 2/3 from the tank, and not to people could check the phone or other device.

Unfortunately, quite often consumers before the first time charge the rechargeable Li-ion battery, remembering old times, start to defuse it, thereby almost immediately they taking away half of life. So be careful and avoid common mistakes that lead to failure of the battery.

How to charge the Li-ion battery?

The Most optimal work environment for conventional Li-ion power source is the battery level at the level of 20-80%. These devices really don't like overcharging, and even though the battery is a special controller that will not allow it, but there are some consumers who day and night keep the battery on charge. It's completely useless, and thus not to extend the operation of the device, and Vice versa.

Rechargeable Li-ion 18650 battery

This battery has a cylindrical shape and in appearance entirely resembles a regular battery. It should be noted that unscrupulous manufacturers, trying in every way to increase sales, start to point high performance. To date, there is no more energy consuming Li-ion battery type 18650, 3400 mAh than. If the food item is indicated by a figure greater than this, it should be understood that the manufacturer intentionally overstates the characteristics of your product. There is a high probability that in fact the battery will have no more than 2200 mAh.

How to charge Li-ion 18650 battery

To Charge these batteries only with a special charger, which is sold at almost any store with household. For charging Li-ion batteries need a charger, where the minimum voltage is not less than 2.2 and a maximum of not more than 4.35. The discharge current should not be more than double the battery capacity. That is, if the battery has 2000 mAh, the current on the charger should not be more than 4000 mAh.

What is the danger of overcharging and deep discharge?

Due to the fact that people don't know how to charge the lithium-ion battery, they often make mistakes and too long to keep on charging or, conversely, to forget about him for a long time. What is dangerous improper use of the battery? The thing is that in this case, lithium ions move from one electrode to another. The material of manufacture of the electrodes themselves may be different, but in this thread the details are not so important.

Simply put, the more charged battery, the more lithium ions in the electrode is. If their value is constantly at maximum, thenthe case is sufficiently rapid wear of the device.

What to charge the batteries

Li-ion batteries have gained great popularity also because there are quite a number of options for what they can charge.

The Most logical and correct way to charge the lithium-ion battery – the regular charger. Thanks to a special device battery receives the maximum charge in the shortest possible time. Moreover, it is completely safe for the battery.

Those who do not know how to charge the Li-ion battery, if at hand was not a regular charger reported that it can be done with a computer and USB cord. However, in this case current will only reach 0.5 ampere.

It is Also possible to charge Li-ion battery via the cigarette lighter in the car. Today, many stores sell a special USB adapter, which give different amperage. What current to charge the lithium-ion batteries, it is best to read the documentation that is supplied with your phone, laptop or other device. The bulk of the batteries is charged from 3.7 to 19 volts. However, there are battery models that need more or less voltage. In any case, not worth the risk, and is better to look in the manual.

If none of the previous methods of charging is not reached, you can use the old, but still relevant today, device that got people in the name of "frog". Such devices more designed for batteries of cell phones. Design “frogs” is quite simple: there is one Doc, which is installed Li-ion battery, as well as contacts, adjustable width. Thus, this charger will fit almost any battery of the given type.

As you can see, the methods of charging the battery enough. But before the recharge its lithium-ion battery, you should make sure that there is really no way to use regular exercise. Other methods are used if necessary. They do not bring harm to the battery, but still the original charge should be a priority in comparison with the others.

If the person doesn't know how to charge Li-ion battery screwdriver, we report that this should be done only by a specialized charger, which comes complete with the device. It should be noted that if charging fails, buy a new is not possible, for example, longer this model is not made, then it is possible to connect several batteries of type 18650 and paste it in the box with original charger. How much you need battery type 18650, it is impossible to say, it all depends on the voltage of the screwdriver.

Calibration

About once every three months you need to calibrate. This should prevent full battery discharge. In this case, the controller battery will be able to recalibrate the boundaries of a full charge and discharge devices. This is to ensure that the device where you installed Li-ion battery, display relevant information on its charge. If a long time has not been fully discharged, it may seem unreliable information on the percentage battery charge.

After the battery is fully discharged, it need to charge fully to 100% with the device off. View the battery charge time in the instructions. If after that time you turned the unit on and the battery gauge shows less than 100%, then you need to again off and continue charging until until the full charge level.

Storage

If for a long period of time do not plan to use the battery, you should pay special attention to how it must be stored. The optimum charge is considered to be 30-60% of capacity. The battery must be in a fairly cool room where the temperature remains around 15 degrees. If the battery is stored fully charged, then the next time you'll find that its capacity has decreased significantly.

When the device is left completely discharged, it is even worse. With high probability, in a few months he will need to take for recycling. Li-ion batteries should not be stored for a long time in a deep discharge.

External overheating

Another worst enemy of Li-ion batteries – a high temperature, which they absolutely do not tolerate. The owner of this type of battery should avoid contact with the sun's rays, not to put it near a radiator or other sources of heat radiation. The maximum allowable use temperature of the battery is +50 degrees. If we neglect the temperature regime, probably after a few months the new battery will become damaged.

Conclusion

Now you know whether it is possible to charge the lithium-ion batteries and how it can be done. Summing up the above, one can distinguish the following highlights:

1. Possible battery always need charge the original charges.
2. The Right thing to chargebattery up to 80%, it does not lower the value of the discharge below 20%.
3. To keep the battery constantly on the charger and not recommended for full charge.

If you follow several simple rules battery type Li-ion can last for a sufficiently long period of time, while energy consumption will remain at a high level.