Update: In my case, the excessive battery drain appears to have been caused by WhatsApp getting stuck in an encrypted backup process. After cancelling the WhatsApp backup, the idle battery drain returned to normal and battery life improved significan...
I had issues with iphones and android phones before. I have been using both ecosystems and I cannot say one is better than the other. This specific issue was caused by whatsapp and not by the samsung update.Same issue was posted by Pixel community.
Check this out https://r2.community.samsung.com/t5/Galaxy-S/Significant-battery-drain-after-One-UI-8-5-July-2026-update-S25/td-p/22587783?src=ShareByUserCM
Check this out https://r2.community.samsung.com/t5/Galaxy-S/Significant-battery-drain-after-One-UI-8-5-July-2026-update-S25/td-p/22587783?src=ShareByUserCM
Check this out https://r2.community.samsung.com/t5/Galaxy-S/Significant-battery-drain-after-One-UI-8-5-July-2026-update-S25/td-p/22587783?src=ShareByUserCM
