Boost Your iPhone X Battery Life With These 10 Tips

The iPhone X launched in November 2017. If you’re still using one in 2026, the first truth you need is this: your battery is almost certainly the problem, not your settings. Lithium-ion batteries are rated for roughly 500 full charge cycles before they drop to 80% of their original capacity, and most iPhone X units crossed that threshold years ago. Apple dropped iOS 17 support for the iPhone X, so your device is locked on iOS 16 — and iOS 16 is where these tips apply.

Settings tweaks can stretch a healthy battery from eight hours to ten. They will not revive a 75%-health battery. Before working through this list, check Settings → Battery → Battery Health & Charging. If “Maximum Capacity” reads below 80%, skip to the replacement section at the end of this article — no setting will recover lost capacity.

With that said, here are the 10 changes that genuinely extend iPhone X battery life in 2026, plus a few commonly-recommended tweaks that actually do nothing.

Quick-hit settings table

Setting	Path	Battery impact	Trade-off
Lower screen brightness	Control Center slider	High	Harder to read outdoors
Enable Low Power Mode	Settings → Battery	High	Mail fetch slows, some animations disabled
Enable Dark Mode	Settings → Display & Brightness → Dark	Medium	Cosmetic only
Shorten Auto-Lock	Settings → Display & Brightness → Auto-Lock → 30 Sec	Medium	More passcode entries
Disable Raise to Wake	Settings → Display & Brightness	Low-Medium	Must tap screen to wake
Limit Background App Refresh	Settings → General → Background App Refresh	Medium	Apps load slower on open
Turn off weak Wi-Fi	Settings → Wi-Fi	Low	Slower Wi-Fi
Disable Location Services for unused apps	Settings → Privacy → Location Services	Medium	Maps-dependent apps break
Turn off push email	Settings → Mail → Accounts → Fetch New Data	Medium-High	Email arrives on schedule, not instantly
Reduce Motion	Settings → Accessibility → Motion	Low	Fewer UI animations

1. Lower the screen brightness

The iPhone X has an OLED display, which means bright pixels consume real power. The brighter the screen, the more battery drain per minute of on-time. Swipe down from the top-right corner to open Control Center, then drag the brightness slider down to roughly 40–50%. Avoid turning Auto-Brightness off unless you specifically need fixed levels — Auto-Brightness (Settings → Accessibility → Display & Text Size → Auto-Brightness) actually lowers brightness indoors and saves power compared to a high fixed setting.

Expected gain: ~45 minutes per day of screen-on time at 50% versus 100%.

2. Turn on Low Power Mode

Low Power Mode cuts about 20% off your battery consumption by pausing background app refresh, disabling automatic mail fetch, dimming the display, and suspending some visual effects. Enable it at Settings → Battery → Low Power Mode, or add a Control Center toggle at Settings → Control Center → Low Power Mode.

The iPhone X will prompt you to enable it automatically at 20% battery. You can leave it on all the time if you want — nothing breaks, apps just work slightly slower.

3. Use the real Dark Mode

Older articles tell you to enable “Smart Invert” — that’s outdated advice from iOS 10. iOS 13 added a true system-wide Dark Mode, and iOS 16 (the last version the iPhone X supports) has it built in. Go to Settings → Display & Brightness → Dark.

Because the iPhone X uses an OLED panel, black pixels are physically off, which is a real power saving. Expected gain is modest (5–10%) but it compounds with lower brightness. ~~Settings → General → Accessibility → Display Accommodations → Invert Colors~~ is no longer the right path and degrades legibility.

4. Set Auto-Lock to 30 seconds

The default is 2 minutes. That means your OLED is burning power for almost two minutes every time you set the phone down without locking it. Settings → Display & Brightness → Auto-Lock → 30 Seconds is aggressive but worth it. You can always press the side button to lock manually.

5. Disable Raise to Wake

Raise to Wake uses the iPhone X’s accelerometer to light up the screen whenever you pick the phone up. Over a day of normal handling, this triggers dozens of unnecessary full-brightness wake events. Turn it off at Settings → Display & Brightness → Raise to Wake. You’ll still unlock with Face ID when you tap the screen.

6. Audit Background App Refresh

Background App Refresh is usually the largest hidden drain after the display itself. At Settings → General → Background App Refresh, you have three options: Off, Wi-Fi, or Wi-Fi & Cellular. Set the master switch to Wi-Fi only, then scroll through the per-app list and disable refresh for anything you don’t need updated constantly (games, shopping apps, utility apps).

Keep it on for Messages, Mail, WhatsApp, and any health or tracking app you rely on.

7. Manage Wi-Fi and Bluetooth correctly

This is where most advice gets it wrong. Swiping down in Control Center and tapping the Wi-Fi or Bluetooth icon does not fully turn them off — it only disconnects from current networks. Wi-Fi and Bluetooth radios continue to scan and drain power.

To truly disable them, go to Settings → Wi-Fi and Settings → Bluetooth and toggle them off directly. A weak Wi-Fi signal is a bigger drain than no Wi-Fi at all, because the phone repeatedly boosts transmit power trying to reach the router.

8. Cut Location Services for junk apps

Go to Settings → Privacy & Security → Location Services. For every app that isn’t Maps, Weather, Uber, or something you actually need location for, set it to Never or Ask Next Time. Dozens of apps default to “Always” and wake the GPS in the background.

9. Switch Mail from Push to Fetch

Push email keeps a persistent connection to the mail server, which is a continuous low-grade drain. Go to Settings → Mail → Accounts → Fetch New Data and disable Push. Set Fetch to Every 30 Minutes or Manually. If you use iCloud Mail and Gmail, do this for each account individually.

10. Check Battery Usage to find the drain culprit

Settings → Battery shows a per-app breakdown of battery consumption over the last 24 hours or 10 days. Tap the “Last 24 Hours” / “Last 10 Days” toggle at the top. Any app eating more than 10% of your battery when you barely used it is the problem — usually Facebook, Instagram, or an older game that hasn’t been updated for modern iOS power management.

Either delete that app or disable its Background App Refresh and Location access.

What doesn’t help (contrary to popular advice)

Grayscale mode. You’ll see this recommended constantly. On an OLED screen, grayscale doesn’t meaningfully reduce power — the pixels are still lit, just at different color values. The savings are within noise. Skip it.

“Closing” apps by swiping up. Apple has confirmed repeatedly this does not save battery and may actually waste it by forcing the app to cold-start next time you open it. Leave backgrounded apps alone.

“Calibrating” the battery by running it to 0%. This is a myth carried over from nickel-cadmium batteries. Lithium-ion batteries should not be fully discharged — doing so shortens their lifespan.

When battery tips stop working: replacement

If your iPhone X’s Maximum Capacity (at Settings → Battery → Battery Health & Charging) is below 80%, or if the phone shows the “Service” message, no amount of tuning will fix it. You have three paths:

Apple official battery service: As of 2026, Apple’s out-of-warranty iPhone X battery replacement is $89 plus tax (price current at time of writing — confirm at apple.com/shop/iphone/repair). You can book at apple.com/iphone/repair or by calling Apple Support at 1-800-275-2273. Turnaround is same-day at most Apple Stores.

Authorized third-party repair: iFixit, uBreakiFix, and Apple-authorized local shops typically charge $60–80 for the same repair with genuine or high-grade aftermarket cells.

DIY replacement kit: For the mechanically confident, a replacement battery kit runs $25–45. Opening the iPhone X requires a heat gun or pentalobe-screw removal, waterproof adhesive strips, and careful handling of the battery connector. Safety note: lithium-ion batteries can vent flammable electrolyte if punctured — never use metal tools to pry at the battery.

Representative Amazon search pages (listings go stale quickly — verify the seller is well-rated before buying):

Bottom line

The single biggest battery win on an iPhone X in 2026 is not a setting — it’s checking your Battery Health number. If it’s above 85%, work through this list and expect 1–2 extra hours of screen-on time. If it’s below 80%, spend the $89 on a replacement cell before you spend another minute toggling settings. The iPhone X hardware is still perfectly capable; the original battery just isn’t.