How to Fix Battery Draining Too Fast (ANY iPhone), by Trevor Nace on YouTube. 6 min 24 s.
- Video length
- 6 min 24 s
- Time to do it
- 10 minutes
- Difficulty
- Easy
- Steps
- 8
What you need
Steps
Open Settings, tap Battery and wait for the usage graphs to load. Scroll to the app list and look for apps with high background activity next to them.
Tap Low Power Mode on the same Battery screen and turn it on, or add the toggle in Control Center. It pauses background refresh, mail fetch and some visual effects.
Go to Settings, General, Background App Refresh. Set the heaviest apps to Off, or choose Wi-Fi only so they stop using mobile data in the background.
Open Settings, Display & Brightness. Turn on Auto-Brightness, drag the brightness slider down, and set Auto-Lock to 30 seconds in Settings, Display & Brightness, Auto-Lock.
Open Settings, Privacy & Security, Location Services. Change apps that do not need your position to Never, and switch off Precise Location for apps that only need a rough area.
Check for updates in Settings, General, Software Update. Install any iOS update offered, since Apple often fixes power bugs in these releases.
Restart the phone by holding the side button and a volume button, then sliding to power off. Wait 30 seconds and hold the side button again to turn it back on.
Open Settings, Battery, Battery Health & Charging and read Maximum Capacity. If it sits below 80 percent and shows a service message, book a battery replacement.
Tips and common mistakes
Closing apps in the app switcher does not save power and can make things worse, because the app reloads from scratch next time.
A weak cellular signal makes the phone boost its antenna, so turn on Wi-Fi calling at home if the signal is poor.
Heat is the biggest killer of battery capacity, so take the phone out of a hot car and off a sunny windowsill while charging.
If the screen or back glass looks swollen or lifted, stop charging and take the phone to Apple, since that points to a damaged battery.
Questions
Why does my battery drop overnight?
Background App Refresh, notifications and a poor signal keep the phone busy while the screen is off. Check the Battery screen for overnight hours and switch off whatever is active there.
Does Low Power Mode damage my iPhone?
No. It only slows or pauses features like background refresh and automatic downloads, and the phone works normally again once you turn it off or charge past 80 percent.
When should I replace the battery?
Replace it when Maximum Capacity falls below 80 percent, or when iOS shows a service warning. A new battery usually restores most of the lost runtime.
This guide was drafted from the video's details and general task knowledge. It has not been checked against the full video. Check the video and relevant product instructions before following a procedure. Report a correction.
