Smartphones use a lithium-ion battery, which does not feature a memory effect. Therefore, it's not necessary to activate the battery by charging and discharging it multiple times when using the device for the first time.

To protect your phone's battery and extend its service life, pay attention to the following:

1. Use a standard charger to charge your phone at a stable voltage, in compliance with applicable standards.
2. Theoretically, keeping your battery level as close as possible to the middle battery range (30% to 80%) can effectively prolong the battery life. Therefore, you are advised to:
   • Remove the charger after your phone is fully charged to avoid long-term charging or battery ageing caused by the battery remaining at a high battery level for too long.
   • Power your phone off if you are not planning to use it for an extended period of time. Charge it from time to time, and keep the battery level at about 50%. If your phone has not been used or charged for a long time, the battery may trigger overdischarge protection, resulting in a charging error or charging failure.
3. Extreme temperatures may affect the battery lifespan of your phone. Therefore, you are advised to:
   • Avoid using your phone in environments with a low temperature, high temperature, or significant difference in temperature.
   • Avoid using your phone while charging it for a long time, especially in power-intensive scenarios (such as watching videos or playing games). If your phone heats up, charging and discharging your phone for a long time will accelerate battery ageing.

• Go to Settings > Battery > Optimise battery usage, check the phone status, and optimise phone settings as instructed.

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