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Misconception 1: To activate the phone battery for the first time charging?

Firstly, there is a problem with this statement itself. Imagine that the phone and mobile power source you purchased have not been activated yet. So why do all the things you bought have electricity? That's because it was already activated and tested before leaving the factory. So don't activate it anymore.

In fact, the statement that the first three charges must be sufficient for 12 hours is clearly a continuation of early nickel batteries (such as nickel cadmium and nickel hydrogen).

Modern industrial mobile phones have basically shifted to using lithium-ion batteries, which have completely different properties from nickel batteries. So as long as it is fully charged like normal, it can be unplugged.

Early nickel cadmium rechargeable batteries and nickel hydrogen rechargeable batteries experienced a phenomenon called the memory effect, which occurs when charging in an incomplete discharge state, causing the battery to overcharge. Over time, this can lead to the growth of crystals on the electrode plate, blocking the contact between the electrolyte and the electrode plate, causing a decrease in battery voltage and giving users the feeling that the battery is quickly depleted.

Misconception 2: Should the battery be recharged after being used up? Overcharging can cause battery explosion?

Lithium ion batteries have a high energy density and high voltage (the voltage of a single lithium-ion battery unit can reach 4.2V, while ordinary nickel based rechargeable batteries are 1.2V). Compared with low-voltage batteries, the redox reaction of the electrodes during charging of lithium-ion batteries is very intense. Therefore, the usage conditions of lithium-ion batteries must be strictly limited. Overcharging, over discharging, short circuit, high temperature, etc. can cause battery damage, Even fire and explosion occurred. However, in practical use, lithium-ion batteries are packaged into a single battery board with several cells, a set of safety protection circuits, and various safety devices. These safety designs can ensure automatic disconnection of the battery circuit in the event of overcharging, over discharging, and short circuits; Excessive internal pressure in the battery can also trigger the exhaust device to reduce pressure; If the battery temperature is too high, it will trigger a hot melt protection device, blocking the movement of lithium ions and stopping the electrochemical reaction of the battery. Therefore, as long as you are not using counterfeit batteries of unreliable quality, not unplugging the power in a timely manner when your phone is fully charged will not cause the battery to explode.

Misconception 3: Can batteries extend their lifespan by reducing the number of charges?

Digital device manufacturers will label that charging can reach several hundred times. In fact, this is detected in a deep discharge environment, which means that the battery is used up before being fully charged, and this cycle is repeated. Continuous deep discharge has an impact on the battery.

And our daily charging can only be considered as shallow discharge, continuing to charge before the battery is used up. This method is more effective than deep discharge in terms of battery life. Shallow discharge has a longer lifespan than deep discharge.

In addition, if the battery is not used for a long time, try to maintain it at around 70% of its capacity, which is beneficial for battery maintenance and reduces damage to the battery; Research has shown that long-term storage of lithium-ion in a fully charged state can result in significant capacity loss. Similarly, the higher the temperature, the faster the capacity loss of lithium-ion batteries, and this loss is irreversible, meaning that the battery's capacity will permanently decrease.

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