If the user wants to extend the battery's service life, in addition to the quality of the charger, the correct charging technique is also essential, because the charger of poor quality or wrong charging method will both affect the battery life and cycle life. Here are some tips on charging, which I hope can help you:

1. Before the battery leaves the factory, the manufacturer has activated the process and pre-charged it. Therefore, the battery has residual power. Some people say that the battery is charged according to the adjustment period. The standby time is still seriously insufficient. If the battery is a genuine one, the adjustment period should be extended for 3 to 5 times of full charge and discharge in this case.

2. If the new mobile phone battery is made of lithium ion, then the first 3 to 5 times of charging is generally called the adjustment period, and the phone should be charged for more than 14 hours to ensure full activation of lithium ion activity. Lithium-ion batteries have no memory effect, but they are highly sturdy and should be fully activated to ensure optimal performance in future use.

3. Some automated smart quick chargers only indicate a 90% full charge when the indicator light changes. The charger will automatically charge the battery with slow charging. It is best to be used after fully charged, otherwise service time will be shortened.

4. Before charging, the lithium battery does not need to be specially discharged. If it is not properly discharged, it will damage the battery. When charging, try to charge it slowly, and avoid the fast charging; do not exceed 24 hours. After three to five full charge and discharge cycles, the internal chemicals will be “activated” to achieve optimal results.

5. Please use the charger of the original or reputable brand. For lithium batteries, it’s better to use the lithium battery charger and follow the instructions. Otherwise, the battery may be damaged or even cause danger.

6. Many users often turn their mobile phones on while charging. In fact, this will easily hurt the life of the mobile phone. In the process of charging, the circuit board of the mobile phone will be hot. At this time, if there is an external call, an instantaneous current reflow may occur, causing damage to internal parts of the phone.

7. The life of the battery is determined by the number of repeated charge and discharge cycles, so try to avoid charging when the battery has excess power, which will shorten the battery life. When the phone is turned off for more than 7 days, the battery of the phone should be completely discharged and then fully charged before use.

8. The mobile phone battery has self-discharge, and the lithium battery will discharge 0.2%~0.3% every day. When charging the battery, try to use a dedicated socket. Do not share the charger with a home appliance such as a TV.

9. Do not expose the battery to severe cold temperature. When it is hot, you should not put your mobile phone in the car and expose it to the sun; avoid taking it in an air-conditioned room and putting it in a place where the air is blowing. When charging, it is normal for the battery to have a little heat, but it cannot bear high temperatures. To avoid this, it's best to charge it at room temperature and don't cover anything on your phone.

10. Before charging the nickel-cadmium battery, you must ensure that the battery is completely out of power. After recharging, you must ensure that the battery is fully charged.

11. Charging time is as proper as possible, avoiding too long time. If the battery without the protection circuit is full, stop charging in time. Otherwise, the battery performance may be affected due to heating or overheating.

12. Lithium-ion batteries must match a dedicated charger, otherwise they may not reach saturation and affect their performance. After charging, avoid placing it on the charger for more than 12 hours. Please separate the battery from the mobile phone when it’s not been used for a long time.