The Samsung Galaxy S25 series, consisting of the S25, S25 Plus, and S25 Ultra, arrived with numerous upgrades, including improvements in AI capabilities, design, and performance. However, one area that has left many users frustrated is the fast charging capabilities of the Galaxy S25 Plus and Ultra models. Despite boasting support for 45W fast charging, several users are reporting that their devices are only charging at speeds of 15W or even slower, leading to a much longer charging time than expected, especially on flagship devices costing over $1000.
In this blog post, we'll dive deep into the reported issue, potential causes, and troubleshooting steps users can take to resolve the fast charging problem on the Galaxy S25 Plus and S25 Ultra. We’ll also examine the latest information, including any official responses from Samsung.
Understanding the Fast Charging Problem
The Galaxy S25 line was designed with an emphasis on performance and battery life, with the flagship models being capable of up to 45W charging speeds. However, many owners of the Galaxy S25 Plus and S25 Ultra have reported that their devices are limiting the fast charging speed to 15W or even as low as 5W, despite using chargers that are capable of delivering up to 45W.
One user on Reddit, identified as Brangusler, describes the problem as follows:
"Basically it never goes above 15W except for very brief moments. This is happening all the time from 5% up to 60-70%. I'm lucky if I get a solid 15W, and often it drops into the 5-10W range for no apparent reason."
This issue seems to occur randomly, with the phone charging at much slower speeds than expected. In some cases, the device may drop to as low as 5W, which significantly increases the time it takes to charge the device fully.
Another aspect of this issue is the inconsistency in charging speed. In some cases, users report that their Galaxy S25 Plus or Ultra will charge at 45W for short periods but quickly drop to 15W or lower, especially when the battery level is between 5% and 70%.
Troubleshooting Fast Charging Issues
If you are experiencing fast charging issues with your Galaxy S25 Plus or S25 Ultra, there are a few steps you can take to troubleshoot and potentially resolve the problem. Here are some of the most commonly recommended fixes:
1. Check the Charging Cable and Adapter
Before jumping into software solutions, ensure that the charging cable and adapter you're using are capable of supporting 45W fast charging. Some users have found that third-party cables or chargers, even if they claim to support 45W, can still result in slower charging speeds. It's also worth testing with different cables and adapters to rule out hardware issues. If you're using the official Samsung charger, ensure that the cable and adapter are undamaged.
2. Clear Cache and Logs Using the Hidden Menu
Samsung provides a hidden menu that can be accessed by entering a specific code in the phone’s dialer. This menu is useful for clearing temporary system files, including cache logs that could be affecting performance.
Here’s how to use it:
- Open the Phone app and type *#9900# to access the hidden diagnostic menu.
- Select Delete dumpstate logcat to clear any cached logs that might be causing issues.
- Tap OK to confirm.
- Next, under the Debug Level option, change it from Low to High to ensure that any debugging processes don’t interfere with charging.
Once you’ve completed these steps, restart your phone and check if the charging issue persists.
3. Clear Data of the USB Settings App
- Open the Settings app.
- Go to Apps and tap the down arrow to filter the list.
- Enable Show system apps and tap OK.
- Look for the UsbSettings app in the list and tap on it.
- On the app info screen, tap Force Stop.
- Under the Storage section, tap Clear Data.
- Restart your phone to apply the changes.
This process ensures that the app responsible for managing USB-C charging is reset, which can sometimes resolve charging issues.
4. Ensure the Device is Fully Charged When Turned Off
Samsung’s official troubleshooting guide suggests that charging issues may occur if the phone’s battery is not fully charged when it is turned off. Make sure your Galaxy S25 Plus or S25 Ultra is at least partially charged before turning it off for charging. This simple step can sometimes help restore the charging speeds.
5. Check for Software Updates
Software bugs can sometimes interfere with fast charging, and manufacturers typically release updates to address these kinds of issues. Samsung acknowledged the issue with the Galaxy S25 series in early February and indicated that a fix would be released to address the problem. If you haven't already, check for any available software updates under Settings > Software Update.
At the time of writing, it is still unclear whether the February security update addresses the issue. Keep an eye on updates and be sure to install them as soon as they become available.
6. Check for Overheating
Overheating can sometimes limit charging speeds, as the phone will automatically throttle the charging process to avoid damage. If your device feels excessively hot while charging, this could be the reason behind the slower charging speeds. To prevent this, avoid using your phone for intensive tasks such as gaming or heavy app usage while it’s charging. If the phone is too hot, unplugging it and letting it cool down before resuming charging could help restore the proper charging speed.
7. Contact Samsung Support
If none of the above solutions work, it’s best to contact Samsung support directly. They may have additional troubleshooting steps or be able to offer a replacement device if the issue is hardware-related. Samsung support may also provide more tailored solutions based on the specific circumstances of your device.
The Waiting Game: Software Update is Key
Ultimately, the most reliable fix for this fast charging issue is likely to come from Samsung in the form of a software update. Samsung has acknowledged the issue, and a fix is expected to be released soon. Keep an eye out for updates and install them as soon as they become available. Hopefully, Samsung will address this issue promptly and restore the expected fast charging functionality to the Galaxy S25 Plus and Ultra.
In the meantime, the workarounds mentioned above might offer some temporary relief while you wait for the software fix. Be sure to continue checking for new updates, as they may contain improvements or fixes that resolve the issue once and for all.
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