![Samsung Galaxy S21 series Exynos variants plagued with battery life issues since the rollout of February security patch-Tech News , Firstpost Samsung Galaxy S21 series Exynos variants plagued with battery life issues since the rollout of February security patch-Tech News , Firstpost](https://images.firstpost.com/wp-content/uploads/2021/01/Galaxy-S21-.jpg?impolicy=website&width=320&height=180)
Samsung Galaxy S21 series Exynos variants plagued with battery life issues since the rollout of February security patch-Tech News , Firstpost
![Battery Life - Actually Great - The Samsung Galaxy S21 Ultra & S21 Review: The Near Perfect and The Different Battery Life - Actually Great - The Samsung Galaxy S21 Ultra & S21 Review: The Near Perfect and The Different](https://images.anandtech.com/graphs/graph16488/96171.png)
Battery Life - Actually Great - The Samsung Galaxy S21 Ultra & S21 Review: The Near Perfect and The Different
![Samsung replied] I noticed heavy battery drain on my Galaxy S21 FE after installing Android 13 - Sammy Fans Samsung replied] I noticed heavy battery drain on my Galaxy S21 FE after installing Android 13 - Sammy Fans](https://www.sammyfans.com/wp-content/uploads/2022/12/s21-fe-battery-2.jpg)
Samsung replied] I noticed heavy battery drain on my Galaxy S21 FE after installing Android 13 - Sammy Fans
![Samsung One UI 5.1 Update Causing Issues for Some Users! Network, battery drain, and more - Gizmochina Samsung One UI 5.1 Update Causing Issues for Some Users! Network, battery drain, and more - Gizmochina](https://www.gizmochina.com/wp-content/uploads/2023/02/samsung-one-ui-5-1-update-causing-issues-for-some-users.jpeg)