Li-ion operation

Introduction

All of us are somehow familiar with lithium-ion batteries. They are so common that they can be found in any home. Manufacturers build them almost everywhere: flashlights, mobile phones, laptops, tablets ... But very few people know how to properly operate them. So let's go.

Start of use or calibration

When buying any equipment with a battery inside it is always better to check its availability in the store. If your device does not turn on, it is better to refrain from buying. There is a possibility that this device has been in stock for a very long time before you get it in your hands and, perhaps, after purchase, the battery will not hold the charge so well.

Usually, any device with a battery at the beginning of its life should turn on and work for a certain amount of time. If such a device fell into your hands, then we buy and rejoice in the purchase. But coming home should not immediately charge the battery up to 100%. The so-called buildup of the device’s battery, enable the battery to gain maximum capacity for further proper operation.
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Initially, the battery must be fully discharged (0%). After the battery is discharged, it should be fully charged (100%) to increase the working capacity and properly calibrate the battery management system. To achieve the maximum working capacity of the battery, it is required to perform 3-4 full charge-discharge cycles of the battery. And charge should be exactly the charger, which was recommended by the manufacturer.

Operation of a calibrated battery

After the battery has been calibrated, you can use the battery as you please, but follow some rules:

1. Do not leave the device with a lithium-ion battery (for example, a cell phone) close to a source of heat or under the scorching sun. The maximum allowable temperatures at which lithium-ion batteries can be used are from –20 ° C to + 50 ° C.

2. At negative temperatures, batteries may “sag”, which is why they show a lower charge level. You also need to remember that at low temperatures, the batteries are not charged.

3. If your device with a lithium-ion battery says that the charge is running out and should be connected to a current source, then it is worth it. Recommended values ​​for charging are from 7% to 20%. (Except for calibration.)

4. Calibration of the battery should be done once every 3-4 months or 40 charging cycles. The battery calibration process is very simple, but time consuming. You need to completely discharge the battery to 0%, and then charge up to 100% and leave it on for charging for another couple of hours.

5. Charge the batteries best with a charger recommended by the manufacturer.

6. Batteries can not be soldered! It is recommended to use only contact welding.