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"The battery of a new mobile phone must be fully charged for at least 8 hours and fully charged and discharged several times in order to successfully 'activate' the battery and reach its maximum capacity. It is best to use up the battery of mobile phones and laptops before charging, which can reduce the number of charges and extend the battery life. The above 'battery protection methods' are periodically circulating on Weibo and WeChat.".
Multiple experts have confirmed to reporters that these methods not only fail to protect the battery, but also cause damage to it. The best way to protect the battery is actually to use it frequently and charge it repeatedly.
Online rumor: New battery needs to be discharged and activated
Truth: No need for discharge at all
Smartphones are widely used, and on social media platforms, Shengchuan New phones must be fully charged for 8 hours, then fully discharged, and repeated several times to fully activate the phone, allowing the battery to reach its maximum capacity.
According to a document forwarded to reporters by Wu Ou, the deputy editor in chief of Guoke, the above approach is completely wrong. In the early days, nickel cadmium rechargeable batteries and nickel hydrogen rechargeable batteries did require activation. Most of the batteries currently used are lithium-ion batteries. The initialization of lithium-ion batteries is already completed during battery manufacturing and does not require activation through deep charging and discharging. As long as it is a lithium-ion battery, there is no need for an activation process.
Online rumor: Charging your phone battery all night will cause it to explode
Truth: Genuine batteries cannot explode
If the phone is constantly plugged in to charge and not unplugged even when fully charged, will the phone battery explode?
According to data from Guoke Network, theoretically, lithium-ion batteries have the possibility of catching fire and exploding under high voltage, overcharging, over discharging, short circuit, high temperature, and other conditions. But this is only a possibility, and under current engineering conditions, it is almost impossible. At present, lithium-ion batteries have safety protection devices that automatically cut off the battery's circuit in case of overcharging, over discharging, and short circuit.
Only when counterfeit batteries are fully charged and the power is not unplugged in a timely manner, it is possible to cause battery explosions.
Online rumor: Recharging the battery to extend its lifespan
Truth: It can actually harm the battery
Each battery can only support a few hundred charges, and after these hundreds, the battery becomes invalid. The way to extend battery life is to recharge the battery every time it runs out.
Sun Yanbiao, Director of Shenzhen Xuri Mobile Terminal Industry Research Institute, said that charging 100% at once and then using 100% is considered a cycle life. Using 10% at once, then charging another 10%, and repeating this cycle for 10 times is also considered as one cycle life.
He told reporters that batteries, like the human body, are unhealthy if left unused for a long time after being fully charged or plugged in with a power cord for a long time. The battery capacity will irreversibly decrease. "The healthiest practice is to regularly exercise the battery: use it whenever there is a chance, use it for a while, and then plug in the power cord to charge it."
Online rumor: Playing games while charging damages the battery
Truth: High temperatures can indeed damage batteries
Is it true that playing games while charging a phone can cause damage to the phone battery?
Electrical engineer Cao Guobin said that "high temperature" does have an impact on batteries. Under high temperatures, the battery capacity will irreversibly decrease. If the phone is exposed to direct sunlight, it can cause significant damage to the battery life. On the contrary, if the phone battery is placed in an air-conditioned room to cool down in the summer, it is indeed beneficial for battery health.
Is playing games while charging your phone harmful to the battery? Cao Guobin said that when charging, the USB power supply enters the phone and is divided into two channels: one is to charge the battery, and the other is to support power supply for phone modules such as display screens. If playing mobile games is very intense, the high temperature of the phone chip can indeed damage the health of the battery.
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