Battery Drain Issues on My OnePlus 9 After Last Update

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Posted November 27, 2025Nov 27

I've been noticing my OnePlus 9's battery life has taken a nosedive since the recent OxygenOS update. Before the update, I could easily get through a full day with moderate use, but now it barely lasts half a day. I've tried the usual tricks—clearing cache, disabling background apps, and even a factory reset—but nothing seems to help.

Has anyone else experienced similar battery drain issues after the latest update? Are there any specific settings or tweaks that helped you improve battery performance? Also curious if this might be a bug that OnePlus will patch soon.

Battery gif