iPhone Battery Draining Fast? 5 Things to Check
Battery drain can be caused by screen brightness, background activity, weak cellular signal, or an aging battery.
Follow these steps in order, stopping when the issue is fixed. Menu names may vary by model and software version.
Find the apps using power
Open Settings > Battery and review usage by app. A recently updated app or long navigation session may explain a temporary spike.
Check battery health
In Settings, find Battery Health (the exact menu name varies by model). If the battery has degraded significantly, ask Apple about service options.
Reduce screen power use
Lower brightness, enable Auto-Brightness if you prefer, and shorten Auto-Lock. Always-on display settings can also affect battery life on supported models.
Review background activity
Check Background App Refresh and location permissions. Limit unnecessary background access, but keep features you rely on.
Check signal and updates
Poor cellular reception can increase power use. Install iOS updates and allow a day or two after a major update for background processing to settle.
Helpful tip
If the phone becomes unusually hot, swells, or shuts off unexpectedly, stop charging it and seek professional support.