How to Fix Always-On Display Battery Drain

Published 2026-10-16 · Marion Phone Repair

You enabled the always-on display (AOD) on your phone and noticed the battery draining faster than before. The screen shows the time, date, notifications, and maybe a wallpaper at all times — even when the phone is locked and in your pocket. The question everyone asks: is the always-on display actually draining the battery, or is something else causing the drain?

How always-on display works

The always-on display keeps a portion of the screen active at all times by using a low-power mode of the display panel. On OLED and AMOLED screens (used by most flagship phones), individual pixels can be turned on or off independently. The AOD only lights up the pixels needed to show the clock and notifications — the rest of the screen stays completely off (black pixels on OLED use zero power). This is fundamentally different from keeping the screen fully on, which would drain the battery in hours.

On LCD screens (used by some budget and mid-range phones), the always-on display works differently because the entire backlight must be on to display anything. AOD on LCD phones uses significantly more power than on OLED phones, and some LCD phones do not offer the feature at all for this reason.

Additionally, many phones use LTPO (Low Temperature Polycrystalline Oxide) display technology that allows the screen refresh rate to drop to 1 Hz during AOD. A screen refreshing at 1 Hz uses a fraction of the power of one refreshing at 60 or 120 Hz. Phones with LTPO displays have lower AOD battery impact than phones without it.

Actual battery impact

The battery impact of AOD depends on the phone model and settings, but measurements from various independent tests consistently show:

• OLED with LTPO (iPhone 14 Pro and later, Samsung Galaxy S22 and later, Google Pixel 7 and later): Approximately 0.5 to 1.5 percent battery drain per hour with AOD active. Over a typical 8-hour overnight period, this means 4 to 12 percent additional drain compared to AOD off. For most users, this is acceptable — the phone still has plenty of battery to last the day
• OLED without LTPO (older Samsung Galaxy, OnePlus, and other phones with fixed 60Hz minimum): Approximately 1 to 2.5 percent per hour. The higher minimum refresh rate increases power consumption. Over a day, AOD might cost 10 to 20 percent of total battery
• LCD phones (those that offer AOD): Significantly higher drain because the backlight runs continuously. Not recommended to leave on if battery life is a concern

If your battery drain is much higher than these ranges — say, 3 to 5 percent per hour with AOD on — the drain is probably not caused by AOD alone. Something else is consuming power alongside the always-on display.

Fix 1: Check what is actually draining the battery

Before blaming AOD, check the battery usage breakdown to see what is actually consuming power:

• iPhone: Settings, Battery. Scroll down to see battery usage by app over the last 24 hours or 10 days. If an app (not Screen) is consuming a disproportionate amount, that app is the problem, not AOD
• Android: Settings, Battery (or Battery and device care on Samsung), Battery usage. This shows which apps and system services are consuming the most power. If the Screen is listed as the top consumer by a large margin and your screen-on time is low, AOD settings may be too aggressive
• Common battery drains mistakenly attributed to AOD: background app refresh, poor cellular signal (the radio works harder in weak signal areas), location services running constantly, push email syncing frequently, and widgets that refresh in the background

Fix 2: Reduce AOD brightness and content

The more pixels lit up and the brighter they are, the more power AOD consumes:

iPhone

• On iPhone 14 Pro and later, the always-on display shows a dimmed version of your full wallpaper by default. This lights up far more pixels than just the clock and notifications. To reduce power consumption: Settings, Display and Brightness, Always On Display. Toggle off Show Wallpaper — this makes the AOD show only the clock, date, and widgets on a black background, significantly reducing the number of active pixels
• Also toggle off Show Notifications if you want minimum power consumption. With both off, the AOD shows only the clock and date — the lowest power configuration

Android / Samsung

• On Samsung: Settings, Lock screen, Always On Display. Choose Tap to show instead of Show always — this only activates the AOD when you tap the screen, eliminating continuous drain entirely. Alternatively, choose Show as scheduled and set specific hours (for example, 7 AM to 10 PM) so the AOD turns off overnight when you are not looking at it
• Choose a simpler AOD clock style. Clock styles with animations, colors, or large graphics use more pixels and more power than a simple white text clock on a black background
• On Google Pixel: Settings, Display, Lock screen. Set Always show time and info to your preferred option. The Pixel AOD is relatively simple by default and uses minimal power

Fix 3: Use a schedule

If AOD drains too much battery over a full day, limit when it is active:

• Samsung: Settings, Lock screen, Always On Display, Show as scheduled. Set the hours when you want AOD active. Most people only benefit from AOD during waking hours — having it on from midnight to 6 AM while the phone is on a nightstand wastes power for no benefit
• iPhone: iPhone does not have a built-in AOD schedule, but the always-on display automatically turns off in several situations: when the phone is face-down, when it is in a pocket or bag (detected by the proximity sensor), when Low Power Mode is on, and during the Sleep Focus schedule. Using Sleep Focus effectively creates a schedule where AOD is off during sleeping hours
• Android (other brands): Check Settings, Display, or Settings, Lock screen for scheduling options. Some brands include a schedule; others only offer always-on or always-off

Fix 4: Use a dark or black wallpaper

On OLED phones, black pixels are off pixels — they consume zero power. Using a dark or pure black wallpaper with AOD reduces battery consumption because fewer pixels need to be illuminated. Wallpapers with large bright or colorful areas light up thousands of additional pixels. This matters most on iPhones where the AOD shows the full wallpaper by default — switching from a bright photo wallpaper to a dark one measurably reduces AOD drain.

Fix 5: Disable AOD and use alternatives

If battery life is your priority and AOD drain is unacceptable, disable it and use alternative features that accomplish the same goal with less power:

• Lift to wake: Both iPhone and Android have a feature that briefly turns on the screen when you pick up the phone. This gives you the time and notifications on demand without keeping the display running continuously. Settings, Display and Brightness, Raise to Wake (iPhone) or Settings, Display, Lift to wake (Android)
• Double-tap to wake: Available on most Android phones and some iPhones. Tap the screen twice to briefly show the lock screen. Uses essentially zero standby power
• LED notification light: Some Android phones still have a notification LED that blinks when you have unread notifications. This uses negligible power and provides at-a-glance notification awareness without any screen activity. Check Settings, Notifications for LED settings if your phone has one

Fix 6: Check battery health

If your phone's battery has degraded significantly, even the small additional drain from AOD can make the difference between lasting all day and running out early:

• iPhone: Settings, Battery, Battery Health and Charging. If Maximum Capacity is below 80 percent, the battery holds significantly less charge than when new, and features like AOD that were fine with a new battery may push the phone into needing a mid-day charge
• Android: Settings, Battery, Battery health (Samsung) or check using AccuBattery or a similar app. A battery below 80 percent capacity is a candidate for replacement
• A battery replacement restores the phone's original capacity, which often makes AOD drain irrelevant — the phone easily lasts all day with AOD on when the battery is healthy

Battery and display repair in Marion

Marion Phone Repair diagnoses battery drain issues — testing whether the always-on display, background apps, or a degraded battery is the cause, and performing battery replacements when the battery can no longer hold a full day's charge.