For the reliable operation of a self-contained electrical device, you need complete confidence in battery performance. It shouldn't be discharged at the wrong time. And for this you need to be able to properly charge it.
It is very important to be able to charge the battery for proper operation. Frequent undercharging or, on the contrary, too long connection to the network can lead to an early failure of the battery. The easiest and best way is to use a charger with automatic control. It will automatically disconnect the battery from the network after a full charge. Most devices are capable of this; however, in some cases, if the automatic charging indicates a full battery charge, the battery may be recharged with slow currents. Therefore, you should not leave the battery connected after a full charge, unless the instructions require it. There is a calculation formula to determine the battery charging time. The battery capacity is divided by the charging current of the charger, which is indicated on the body of the device. The resulting value should be multiplied by a factor greater than 1, since part of the energy is converted into heat during charging and is lost. The coefficients are slightly different for different types of batteries. For any calculation, you should take a factor of at least 1, 2. When calculating the charging time for nickel batteries, a factor of 1, 4 is suitable. For example, if your battery is 2050 mAh, the charging current of the device is ~ 600mA, therefore, the total charging time of the battery is approximately 5 hours. Accordingly, this is the charging time that should be adhered to. When buying a new battery, it is already approximately half charged at the factory. The first three times, you should completely discharge the device, until it is turned off, and then charge it for at least 12 hours. For each specific battery, it is worth reading in the instructions the optimal time for its first charge. Usually, the battery is fully charged after 3-4 hours, but the next 8-9 hours it is recharged with the so-called slow current to the upper limit of the battery. This is necessary in order to use the full potential of the battery in further work. After the first three recharging cycles, the battery enters the operating mode. And there is no longer a need to wait until it completely sits down, or until it is fully charged. However, it should be borne in mind that each battery has a life time - the number of its recharge cycles. This value varies widely depending on the type of battery and can be obtained from the manufacturer. Accordingly, if you do not constantly wait until the battery is completely discharged, or you do not fully charge it, you will shorten the battery life. It is also worth noting that some materials used in the manufacture of batteries have a memory effect. That is, they remember the last value to which they were last charged, and after subsequent recharges they will be filled up to this value. Fully charged to capacity is essential for these batteries and by following these guidelines you will be able to extend the life of your battery.
