SAMSUNG GALAXY
How to check battery health on a Samsung Galaxy phone
In short
Open Settings, Battery, Battery information for the status, level and typical capacity. Our Galaxy S26 on One UI 9 showed no health percentage there, so use Samsung Members: Support, Get started, then Battery status, which read Normal, Life: Good.
As battery health decreases, Samsung says you may notice shorter battery life or unexpected shutdowns, so it is worth checking the battery condition. Samsung gives two places to look: Battery information in Settings, and the Battery status test in the Samsung Members app. Samsung says Phone diagnostics in Samsung Members shows how your battery is doing right now.
6 of 6 steps show a real screenshot from our Galaxy S26.
Steps
- 1
Open Battery
Open Settings and tap Battery.
- 2
Tap Battery information
Scroll down the Battery page. Battery information is just below Battery protection, which read Basic on ours.
- 3
Read the Battery information page
Our S26 showed three rows: Battery status (Charged), Battery level (100%) and Battery capacity, 4300 mAh (typical). There was no Battery health percentage and no cycle count on this page, so for the battery's condition use Samsung Members.
- 4
Open Samsung Members and tap Get started
Open the Samsung Members app and tap Support at the bottom. Under Phone diagnostics, Check if your phone's functions are working properly, tap Get started. The first time, ours asked us to agree to updated Samsung account policies.
- 5
Run the tests, then pick the battery
Samsung says to run the full diagnostics first, stop the test, then pick the item you'd like to test. Ours ran 6 of 21 tests automatically and then asked before the interactive ones, which play sounds; we tapped Cancel. Phone diagnostics then said You can test a function individually by tapping its icon. Tap the battery icon, second in the first row, partly behind the Test all button on ours.
- 6
Read Battery status
Our result read Battery status: Normal, Life: Good, Capacity: 4300 mAh (typical). Test again repeats it.
If you do not see this option
- Battery information shows a health percentage on your phone? Some models do. Our Galaxy A57 with One UI 8.5 showed Battery health (100%) and the cycle count (14) on the same page; our Galaxy S26 with One UI 9 did not.
- Start the full test first In Samsung Members, Samsung says to start the full diagnostics, stop the test, then choose Battery status. Source: Determine when your Samsung Galaxy phone battery needs replacing
- Asked to continue or restart the tests? When we opened Phone diagnostics again, it said we had already finished some tests and offered Continue testing, Restart testing and Cancel.
- The diagnostics page does not open Samsung suggests opening it with its own browser, which newer phones call Samsung Browser instead of Samsung Internet. Source: Determine when your Samsung Galaxy phone battery needs replacing
If this does not work
- The diagnostics page does not open Samsung suggests opening it with its own browser, which newer phones call Samsung Browser instead of Samsung Internet.
- The phone shows a battery alert Samsung says the phone may show a battery performance degradation alert once performance has dropped a lot. Have the battery checked at a Samsung service centre.
- It drains fast or switches off in the cold Samsung lists these as signs of an ageing battery. A replacement may be covered by the warranty, or be paid service.
- The number has dropped since last month? Samsung describes the battery as a consumable part that naturally degrades over time. If a battery performance degradation alert appears, Samsung says to have the battery inspected at a Samsung service centre.
Good to know
Samsung lists the signs of a battery that needs replacing: it drains quickly after charging, and the phone turns off unexpectedly, especially in the cold.
To slow the wear down, limit charging to 80%: how to limit charging to 80% on a Samsung Galaxy phone.
Don't worry if that capacity looks perfect on an older phone: the figure on the Battery information page is the typical one for a new battery, not a measurement of yours. Our S26 page said 4300 mAh (typical) and explained that the rated capacity is 4175 mAh, tested under the IEC 61960 standard.
Checking changes nothing on the phone and uses no data. Battery protection has several levels: Basic, the default, stops at 100% and starts again at 95%; Maximum stops at 80, 85, 90 or 95%, your choice, on One UI 7 and later; and Sleep time protection holds about 80% overnight and finishes just before you usually wake, though Samsung says it needs about two weeks to learn your sleep pattern. If it drains fast even though health looks good, see Samsung Galaxy battery draining fast.
What our device showed
- Device
- Samsung Galaxy A57 5G (SM-A576B)
- Software
- One UI 8.5, Android 16
- Battery health
- 100%
- Battery cycle count
- 14
- Battery capacity
- 5000 mAh (typical); the note gives the rated capacity as 4905 mAh
- Manufacture date
- February 07, 2026
- First used date
- August 03, 2026
- Date checked
- October 2026
Read from our own screenshots of this device. Your phone will show its own figures. See what each Android brand shows.
Watch these steps
Watch on YouTubeThe same steps, recorded on our Galaxy S26 · opens YouTubeAbout this guide
- Device
- Android
- Shown on
- Samsung Galaxy S26 (SM-S942N, Korean model), One UI 9, Android 17 (build S942NKSS4BZIG)
- App
- Settings
- Path
- Settings › Battery › Battery information: status
- Real screenshots
- 6 of 6 steps
- Checked
- October 2026
- Sources
- 3 official, linked below
The screenshots are from our Samsung Galaxy S26, the Korean model SM-S942N, with One UI 9 and Android 17 (build S942NKSS4BZIG), in Dark mode, taken on 1 November 2026. What Battery information shows can differ between models and software versions, so never assume every Galaxy looks the same. We ran the automatic tests in Samsung Members and cancelled the interactive ones; nothing was changed.
What changed: every step re-shot on our own Galaxy S26 (Korean model SM-S942N) on One UI 9, dark mode, with the steps rewritten for the One UI 9 screens.
Sources
Links checked October 2026. Menus and features can change with updates.What to do next
Make your Galaxy battery last Step 1 of 6
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