Tips to Extend the Battery Life of a Used iPhone

After purchasing a used iPhone, proper maintenance can prolong its battery life:

1.Avoid using the device in extreme temperatures

The optimal operating temperature for the battery ranges from 16℃ to 22℃. High temperatures will accelerate the aging of battery cells, while low temperatures will temporarily affect battery life. Try not to use the phone for extended periods in direct sunlight or freezing environments.

2.Adopt smart charging habits

Avoid overcharging and deep discharging. There is no need to wait until the battery is fully drained before charging. It is recommended to recharge the phone when the battery level drops to 20%–30% and stop charging once it reaches 80%–90%. You can enable the Optimized Battery Charging feature to reduce the time the battery stays fully charged.

3.Minimize high-power-consumption usage scenarios

Refrain from prolonged activities like playing graphics-intensive games or rendering videos, as these tasks will put the battery under continuous high load, causing overheating and accelerating battery degradation. Meanwhile, regularly close redundant background apps to reduce unnecessary power consumption.

4.Replace the battery promptly when needed

If you notice a rapid decline in battery health, battery swelling, or abnormal charging issues, replace the battery in a timely manner to avoid compromising your user experience and device safety.