While automatic updates are not bad in themselves, the timing of the updates might work against you and make your battery low when you least expect it. Automatic downloads: Downloads use data to update, and when cellular data or Wi-Fi is on, it’s also a drain on resources.However, turning this on all the time will be a drain on your battery. It collects such directly from iPhone users in the form of Diagnostics and Usage Data. Diagnostics and Usage Data: Apple and other third-party app developers need data to improve the iPhone experience.In this situation, the best thing to do is to turn on airplane mode if you can excuse using network till you get to a better network reception. Bad network signal: Whenever you're in an area where the network coverage is really bad, your device uses extra resources to connect to a network which in a result your Phone dies faster than before.This effort translates to more battery drain for your device. Location tracking: If location tracking is turned on all the time and for every app, it’s going to take a lot of effort to connect to GPS per time.This problem is more likely to happen after you upgrade the iOS system, because it will have higher requirements on the phone’s hardware, including the battery. iOS issues & battery health: When your iPhone battery percentage jumps when plug in or all of a sudden, the first possibility is that your iPhone battery wear or battery capacity is low.Why is your iPhone battery draining so fast all of a sudden?

Moreover, we will also share some tips on how you can solve most iOS problems and save battery on iPhone. So if your iPhone battery starts dying fast all of a sudden after updating to iOS 15/14, try out these fixes and get your issue resolved. 10 Solutions to Fix iPhone Battery Draining Fast Suddenly After iOS 15/14 Update.Why is your iPhone battery draining so fast all of a sudden?.

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