I'm calibrating my iPhone 8 Plus' battery. Some sites say to turn the brightness all the way down while others say to turn it all the way up to drain the battery?
![My friend's sister has used her iPhone 7 for 8 years. She never replace her battery because the concept of replacing batteries is strange to her. Why is her battery health percentage My friend's sister has used her iPhone 7 for 8 years. She never replace her battery because the concept of replacing batteries is strange to her. Why is her battery health percentage](https://preview.redd.it/my-friends-sister-has-used-her-iphone-7-for-8-years-she-v0-3t4pbhqgpow91.jpg?auto=webp&s=3914190d2eca08976c4050d42d16c1068b9b547c)
My friend's sister has used her iPhone 7 for 8 years. She never replace her battery because the concept of replacing batteries is strange to her. Why is her battery health percentage
![iPhone 8 Plus New Battery vs Original Battery Life Drain Test in 2021 | 8 Plus IOS 14.4 Battery Test - YouTube iPhone 8 Plus New Battery vs Original Battery Life Drain Test in 2021 | 8 Plus IOS 14.4 Battery Test - YouTube](https://i.ytimg.com/vi/BgTuYCJR6xI/maxresdefault.jpg)
iPhone 8 Plus New Battery vs Original Battery Life Drain Test in 2021 | 8 Plus IOS 14.4 Battery Test - YouTube
![iPhone 8 Plus 64GB Rose Gold, Battery Health 90%, Mobile Phones & Gadgets, Mobile Phones, iPhone, iPhone 8 Series on Carousell iPhone 8 Plus 64GB Rose Gold, Battery Health 90%, Mobile Phones & Gadgets, Mobile Phones, iPhone, iPhone 8 Series on Carousell](https://media.karousell.com/media/photos/products/2022/12/1/iphone_8_plus_64gb_rose_gold_b_1669872360_e0839114_progressive.jpg)
iPhone 8 Plus 64GB Rose Gold, Battery Health 90%, Mobile Phones & Gadgets, Mobile Phones, iPhone, iPhone 8 Series on Carousell
![Testing Different Battery Health of 8 Plus in 2023 - iPhone 8 Plus Battery Life Drain Test in 2023 - YouTube Testing Different Battery Health of 8 Plus in 2023 - iPhone 8 Plus Battery Life Drain Test in 2023 - YouTube](https://i.ytimg.com/vi/hNxX1LBhYA8/maxresdefault.jpg)
Testing Different Battery Health of 8 Plus in 2023 - iPhone 8 Plus Battery Life Drain Test in 2023 - YouTube
Iphone 8 Plus ➡️Battery health degraded 🥲 ✓Battery Replacement done😍 For inquires: Workshop Lopeng - https://bit.ly/3rOYO47 Branch… | Instagram
IphonE 8 plus (64 gb non pta battery health 100 (battery change ) bki All okY phonE 10 dayas check waranTEe🌸 PricE=35k fix pricE❣️ | Instagram
![iPhone 8 256GB Silver 95% Battery Health Lady User, Mobile Phones & Gadgets, Mobile Phones, iPhone, iPhone Others on Carousell iPhone 8 256GB Silver 95% Battery Health Lady User, Mobile Phones & Gadgets, Mobile Phones, iPhone, iPhone Others on Carousell](https://media.karousell.com/media/photos/products/2019/11/05/iphone_8_256gb_silver_95_battery_health_lady_user_1572961271_00276c84.jpg)