OnePlus 9 Battery: Solid battery life, but fast charging is the standout feature

The OnePlus 9 offers above-average battery life, but its 65W fast charging is its key strength.OnePlus 9 Smartphone Batteryand charging specifications: It features a built-in 4,500mAh battery and supports 65W wired fast charging, with a claimed full charge time of 39 minutes.
Real-world battery performance:
ComprehensiveOnePlus 9 Smartphone Batterytest: After 5 hours of heavy usage, approximately 41% of the battery remained.
Continuous usage scenarios:
After 4 hours of heavy mixed usage, 27% battery remained.
Web browsing lasts about 11.5 hours, while gaming endurance exceeds 9 hours.
It received an overall battery score of 122 from DxOMark.
Overall verdict: The OnePlus 9 Smartphone Battery performance is "neither outstanding nor poor." Its main drawback is the lack of a variable refresh rate display, which leads to higher power consumption at maximum settings. However, the 65W fast charging largely compensates for this; just 10 minutes of charging provides a significant amount of usage time.

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