Your Galaxy phone was fine last week. Now the battery melts away by the evening and you cannot explain it. You have not installed any new apps, you have not been streaming more, and screen on time looks normal. In cases like this, the culprit is often something you would never suspect: the stock keyboard. A buggy Samsung Keyboard release caused abnormal battery drain on Galaxy S24, S25 and other One UI devices, and because a keyboard runs every time you type, a stuck background process in it can chew through charge all day. The good news is that the fix is confirmed and takes about two minutes.
Quick Answer
Update Samsung Keyboard to version 5.9.30.81 through the Galaxy Store (Galaxy Store > Menu > Updates). This release fixes the known battery drain bug. Then confirm the fix under Settings > Battery > Battery usage by checking that Samsung Keyboard has dropped back to under 1 percent over a full day. If the update alone does not fix it, restrict the keyboard's background battery usage and clear its cache using the steps below.
How to Confirm Samsung Keyboard Is the Culprit
Do not start changing settings until you know the keyboard is actually guilty. Samsung's built in battery statistics tell the story clearly.
- Open Settings and tap Battery, then tap Battery usage.
- Change the view to the last 24 hours or since last full charge, whichever your phone offers.
- Look for Samsung Keyboard in the app list and check its percentage.
A healthy keyboard sits at well under 1 percent over a full day, because typing uses the CPU only while you are actually touching keys. If Samsung Keyboard shows 3, 5, or 10 percent or more, something is wrong. A keyboard should never rank in your top five battery consumers. During the buggy period, users reported Samsung Keyboard consuming more power than their browser or messaging apps, sometimes even when they had barely typed anything that day.
Use this quick reference to interpret what you see:
| What you check | What it tells you |
|---|---|
| Samsung Keyboard below 1 percent | Normal behavior, your drain is coming from somewhere else |
| Samsung Keyboard between 2 and 4 percent | Suspicious, likely the keyboard bug or a stuck process |
| Samsung Keyboard above 5 percent | Almost certainly the buggy keyboard build |
| Keyboard version below 5.9.30.81 | You are on the buggy release and need the update |
| High usage even when you barely typed | Confirms a background process, not normal typing load |
One important note: Samsung Keyboard is a system component, so on some One UI versions it appears as a system app in battery stats rather than under its own name. If you cannot find it in the list, tap the menu on the battery usage screen and enable show system usage or similar, depending on your One UI version. For a broader battery drain diagnosis that looks beyond the keyboard, see our guide on general Samsung Galaxy S25 battery drain, which covers system level causes like display settings, 5G scanning, and rogue background apps.
Fix 1: Update Samsung Keyboard to v5.9.30.81 via the Galaxy Store
This is the confirmed fix and it should be your first step. Samsung pushed version 5.9.30.81 specifically to resolve the battery drain issue, so getting this build on your phone ends the problem for most people.
Why it works: the previous build contained a bug where a keyboard background process kept running instead of sleeping when you stopped typing. The 5.9.30.81 release fixes that process behavior. No setting can fully compensate for a bug in the app itself, which is why updating comes before everything else.
How to update:
- Open the Galaxy Store app (the Samsung app store, not Google Play).
- Tap the Menu button at the bottom, then tap Updates.
- Find Samsung Keyboard in the list and tap Update. If you do not see it, pull down to refresh the list.
- Once the update finishes, restart your phone so the new build loads cleanly.
This step matters enough to say it twice: do not check Google Play for this update. Samsung Keyboard is updated through the Galaxy Store only, and the fixed 5.9.30.81 build is distributed there. Searching the Play Store will show you third party keyboards and leave the buggy build in place.
After updating, give it one full charge cycle before judging. Battery usage stats reset and rebuild, so check again the next day. If Samsung Keyboard drops back under 1 percent, you are done.
Fix 2: Clear the Samsung Keyboard Cache
If the update alone did not fix it, the next suspect is corrupted cache data. The keyboard stores learned words, clipboard history, and theme assets, and corrupted cache can keep its processes looping.
- Go to Settings > Apps and find Samsung Keyboard.
- Tap Storage.
- Tap Clear cache. Do this first and use the phone for a few hours.
If clearing the cache does not help, repeat the steps and tap Clear data instead. This is a bigger step: it wipes your learned words, personalized predictions, and keyboard settings, returning the keyboard to defaults. You will need to retrain its predictions, but it often kills a stuck process that cache clearing alone cannot reach. Do not clear data until you have tried cache first.
Fix 3: Restrict Background Battery Usage for the Keyboard
A keyboard has no legitimate reason to run in the background. Unlike a music app, it only needs to be active while you are typing. Restricting its background activity forces any stuck process to stop.
- Go to Settings > Apps > Samsung Keyboard.
- Tap Battery.
- Set it to Restricted instead of Optimized.
In practice this changes almost nothing about how the keyboard feels when you type. What it stops is background work like syncing learned words to your Samsung account or keeping processes alive after you close a text field. The one thing you may notice is slightly delayed cloud features, like text correction sync across devices. If you rely on that, you can set it back to Optimized after a few days once the drain is confirmed gone.
Fix 4: Turn Off Power Hungry Keyboard Features
Even on a fixed build, several optional keyboard features keep the keyboard doing extra work. Disabling the ones you do not use reduces the load.
Open Settings > General management > Samsung Keyboard settings and review these:
- Voice input: if you never dictate, turn it off. Voice input keeps the microphone and network listeners warm.
- Suggest text corrections and predictive text sync: cloud backed prediction syncs with your Samsung account in the background. Keep local prediction but disable cloud sync if you do not need your dictionary on multiple devices.
- Suggest stickers while typing and similar content suggestions: these fetch content from the network and burn data and battery.
- Clipboard edge panel sync: if clipboard sync across devices is on, turn it off unless you actually use it.
None of these features are essential to typing. Keep what you use, disable what you do not, and your keyboard runs leaner permanently.
Fix 5: Uninstall Keyboard Updates to Roll Back
This is the right move if the Galaxy Store update is not available on your device yet or if a new update made things worse. Rolling back returns Samsung Keyboard to the version that shipped with your One UI release, which predates the bug.
- Go to Settings > Apps > Samsung Keyboard.
- Tap the three dot menu in the top right.
- Tap Uninstall updates and confirm.
Your phone will now run the factory keyboard version. You will lose some newer features, but battery life should return to normal immediately. Keep checking Galaxy Store > Menu > Updates over the following days and install 5.9.30.81 when it appears, then re enable anything you had customized.
Fix 6: Switch to Another Keyboard Temporarily
This fix doubles as a diagnostic. If you change your default keyboard and the drain disappears, you have absolute proof the Samsung Keyboard build was the problem.
- Install Gboard or another keyboard from the Play Store.
- Go to Settings > General management > Keyboard list and default.
- Turn on the new keyboard and set it as the default.
- Use it for a full day and check Settings > Battery > Battery usage.
If battery life recovers, the Samsung Keyboard build was definitively guilty. You can switch back after updating to 5.9.30.81. Many people keep Gboard as a backup keyboard installed for exactly this kind of troubleshooting.
Fix 7: Update One UI and Restart Clean
If you have done everything above and drain persists, the problem may be at the system level rather than in the keyboard app itself. A pending One UI update can contain power management fixes that interact with the keyboard bug.
- Go to Settings > Software update > Download and install.
- Install any available update and restart.
- If no update is available, do a full restart anyway: hold the power button, tap Restart, and use the phone normally for a day.
A factory reset is the genuine last resort and is rarely needed for this issue. If you reach this point and the keyboard still dominates your battery stats, back up your data and consider it, but most users are fixed by Fix 1 or Fix 2 long before this.
Summary: Which Fix to Try First
| Fix | Time needed | When to use it |
|---|---|---|
| Update to v5.9.30.81 via Galaxy Store | 2 minutes | Always the first step, the confirmed fix |
| Clear cache, then data | 2 minutes | Update alone did not work |
| Restrict background battery usage | 1 minute | Keyboard still shows high background usage |
| Disable extra keyboard features | 5 minutes | General battery hygiene, keeps drain from returning |
| Uninstall keyboard updates | 2 minutes | Fixed build not available, or update made it worse |
| Switch default keyboard | 10 minutes | Diagnostic proof, or a temporary workaround |
| One UI update and restart | 15 minutes | Everything else failed |
Frequently Asked Questions
Why would a keyboard drain battery at all?
Typing itself uses very little power. The drain comes from background processes: syncing your personal dictionary to your Samsung account, fetching sticker and content suggestions, and, in the buggy build, a process that failed to sleep after you stopped typing. A runaway background process can consume more power than an hour of screen on time.
Which Galaxy phones are affected?
Reports centered on Galaxy S24 and S25 series phones running recent One UI versions, but any Samsung phone that received the buggy Samsung Keyboard build through the Galaxy Store could be affected. The fix is the same regardless of model.
Can I update Samsung Keyboard from the Google Play Store?
No. Samsung Keyboard is a Samsung system app and its updates come through the Galaxy Store only. Checking the Play Store will not show the update, which is why many users stayed on the buggy build without realizing a fix existed.
Will restricting background usage break my keyboard?
No. Typing, autocorrect, and predictions all work normally because those run in the foreground while you type. The only things affected are background conveniences like cloud dictionary sync. If you notice anything missing, set it back to Optimized.
How do I stop this from happening again?
Keep automatic updates enabled in the Galaxy Store so fixed builds install promptly, and check Settings > Battery > Battery usage after any keyboard update. If Samsung Keyboard ever climbs above 2 percent again, you will catch it on day one instead of week three.
Does Samsung Keyboard drain battery even when I am not typing?
On the fixed build, no. If you see significant keyboard usage on a day you barely typed, that is the signature of the bug and means you should update or clear the keyboard's data immediately.
Conclusion
A keyboard draining your battery feels absurd until you see it in your own battery stats, and then the fix feels almost too simple. Update Samsung Keyboard to version 5.9.30.81 from the Galaxy Store, verify it in Settings > Battery > Battery usage, and in most cases the problem ends there. The fallback fixes above cover every scenario where the update alone is not enough, from corrupted cache to a missing update on your specific device. Check your battery stats once more tomorrow, and your Galaxy should be back to its normal all day endurance.
