Is it normal for Apple's new mobile phone not to turn on when it is dead?

1) Before the battery leaves the factory, the manufacturer activates it and precharges it, so all batteries have residual power. Some friends say that the battery is charged according to the adjustment period, and the standby is still seriously insufficient. Assuming that the battery is indeed a genuine battery, in this case, the adjustment period will be extended for 3~5 times before it can be fully charged and discharged.

2) If the newly purchased mobile phone battery is lithium ion, the first 3~5 times of charging is generally called the adjustment period, and it should be charged for more than 14 hours to ensure the full activation of lithium ion. Lithium-ion batteries have no memory effect, but they have strong inertia. It should be fully activated to ensure the best performance in future use.

3) Some automatic intelligent fast chargers only display 90% full when the signal light changes. The charger will automatically change to a slow speed to charge the battery. It is best to use the battery after it is fully charged, otherwise the service time will be shortened.

4) Before charging, the lithium battery does not need special discharge, and improper discharge will damage the battery. When charging, try to charge slowly and reduce the fast charging mode; The time should not exceed 24 hours. After three to five complete charge and discharge cycles, the chemicals in the battery will be fully "activated" to achieve the best use effect.

5) Please use the charger of the original factory or reputable brand, and use the special charger for lithium battery, and use it according to the instructions, otherwise the battery will be damaged or even dangerous.

6) Many users often turn on their mobile phones when charging. In fact, it is easy to hurt the life of their mobile phones, because the circuit board of the mobile phone will heat up during charging. At this time, if there is an external phone, it may produce instantaneous reflux current and damage the internal parts of the mobile phone.

7) The life of the battery depends on the number of times of repeated charging and discharging, so it is necessary to avoid charging the battery when the power is left, which will shorten the life of the battery. When the mobile phone is turned off for more than 7 days, the battery of the mobile phone should be completely discharged before use.

8) Self-discharge of mobile phone battery. When not in use, the daily discharge of the Ni-MH battery is about 1% of the remaining capacity, and the daily discharge of the lithium battery is 0.2%~0.3%. When charging the battery, try to use a special socket, and don't use the socket for household appliances such as chargers and televisions.

9) Although the mobile phone is in the network coverage area, it can't answer the phone after being turned off and charged. At this time, you can use the non-call transfer function of the mobile phone to transfer the mobile phone to the fixed phone around you to prevent the call from being lost. This method is also applicable when the mobile phone is not in the network coverage area or the signal is weak and temporarily unable to connect.

10) Don't expose the battery to high temperature or cold places, such as dog days, and don't expose the mobile phone to the sun in the car; Or take it to an air-conditioned room and put it in a place where the cold wind blows directly. When charging, it is normal for the battery to be a little hot, but it cannot withstand the "suffering" of high temperature. In order to avoid this situation, it is best to charge at room temperature and don't cover anything on the mobile phone.

1 1) nickel cadmium (n

Icd) The battery must be completely dead before charging and fully charged after charging.

12) If the mobile phone battery is not used for a long time, it is best to apply to the mobile phone maintenance department for charging the battery, or you can use a DC constant voltage device yourself, adjust the voltage to 5~6v and the current to 500~600ma, and connect the battery in reverse. Note: hair-trigger, repeat up to three times. After this treatment, the original charger is used for "adjustment period" charging.