Xiaomi smartphones are famous for fast charging, but over time even flagship models like Xiaomi 14 Ultra or Redmi Note 13 Pro.+ It's not just because of battery wear, it's because of the wrong chargers, the background, even the ambient temperature. In this article, we'll look at 10 ways to get the charging speed back to where it was, including the hidden settings. MIUI, choice of accessories and hardware tricks.
Itβs important to understand that manufacturers limit maximum charging power not only for safety, but also to extend battery life, but in some cases, such as before leaving the house, these limitations can be circumvented by legitimate means. We tested all the tips on models from POCO F5 Xiaomi 13T Pro, therefore, the data is relevant for most devices of the brand.
1.Use the original charger with Quick Charge support
The first thing to check is the power of the charger. Xiaomi smartphones support different fast charging standards:
- π Quick Charge 3.0/4+ (before 27 W - budget models (Redmi) 12C, POCO M6 Pro)
- β‘ HyperCharge (67-120 watts) β flagships (Xiaomi 13 Pro, Mix Fold 3)
- π TurboCharge (33β50 W) β mid-segment (Redmi Note 12 Pro, Xiaomi) 12T)
If you use a βnativeβ charger from another device (for example, from a POCO X3 Pro for Xiaomi 11 Lite NE), Power can automatically decrease to 10-18 W. Check the current charging speed can be found in the Settings menu β Battery β Battery status (by MIUI 14+).
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On some models (e.g. Xiaomi) 12S Ultra) original charging has two USB-port, one for power, one for data. Connect the cable to the port with the symbol β‘, Otherwise, the speed will drop to 10 watts.
The table below shows the compatibility of charging between popular models:
| Smartphone model | Max. Charging power. | Compatible Charges (Power) |
|---|---|---|
| Xiaomi 14 Pro | 120 W. | Original 120W, Anker 737 (140W) |
| Redmi Note 13 Pro+ | 120 W. | Original 120W, Baseus 65W (limited to 67 watts) |
| POCO F5 | 30 Watts. | Anybody. QC 3.0+ (18 watts) |
| Xiaomi 11T Pro | 120 W. | Only the original 120W (others will give max 67W) |
β οΈ Note: Charges from Samsung or iPhone (even with support) QC) It often fails to unlock Xiaomiβs full potential, such as charging from the Galaxy. S23 Ultra (45W) will give Redmi Note 12 Pro only 18W.
2. Enable the "Fast Charging" mode in hidden settings
By default. MIUI It limits charging to 80 percent to extend battery life, but you can remove that limit through a hidden menu of engineering settings:
- Open the Phone app.
- Enter the combination: ##4636##
- Go to the Battery Information tab.
- Click on Charging Mode and select Quick Charging (on).
On the new versions MIUI 14/15 This path may not work:
- π± Go to Settings. β Battery β Battery settings.
- π Activate the Quick Charging Switch (if any).
- π§ On some models (Xiaomi 13, 14) you need to enable Performance Mode in Settings. β Special facilities β Developer mode.
What to do if there is no "Fast Charging" item?
Once activated, check the charging speed through the AccuBattery app (available on Google Play).If power hasn't increased, the problem may be in the firmware or hardware.
3. Optimize background processes before charging
Apps like Facebook, TikTok or Google Maps are actively consuming resources even in the background, which slows down charging.
Close all applications through the multitasking menu
Turn off mobile data and Wi-Fi (or switch to airplane mode)
Turn off sync of Google Account and Mi Cloud
Make sure the body temperature is below 35Β°C (check in Settings) β Battery)
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In the models with MIUI 13+ There's a built-in "Ultra-Fast Charging Mode" that automatically pauses background tasks:
- Go to Settings β Battery β Charging modes.
- Choose Superfast Charging (not available on all devices).
- Confirm the action β the smartphone will restart.
This mode shall disable:
- π΅ Background data transmission
- π Auto-update of applications
- π Geolocation (except for system services)
β οΈ Attention: On Xiaomi 12S And now it blocks notifications from messengers, and if you care about messages, use Game Mode instead, which speeds up charging, but it's less aggressive.
4.Check the cable: why it slows charging
Even with the original charging, the speed can drop due to poor quality cable. USB-The cable has thin wires for data transmission and power, and if they are damaged or too thin, the power is limited to 10 to 15 watts.
How to check the cable:
- Connect your smartphone to your PC and check if it is defined as a media device (MTP). If not, the cable is damaged.
- Look at the connector: quality cables have a metal screen inside (interference protection).
- Try charging another device with the same cable, and if the speed is low, it's the problem.
Optimal cables for fast charging Xiaomi:
- π Orico Type-C 100W (maintain 20V/5A)
- β‘ Baseus 60W (nylon-plate, length 1.5 m)
- π Original cable from the kit (if not lost)
Original from the kit
Third-party brand (Baseus, Anker, etc.)
Cheap no-name cable
I don't know what kind of cable I have.-->
Critical point: cables longer than 1.5 meters physically cannot transmit high currents (due to resistance).If you need a long charge, use an extension cord with an outlet rather than a long one. USB-cable.
5.Temperature: Why the smartphone does not take full power
Xiaomi automatically reduces charging speed if the battery temperature goes beyond 10β40Β°C. In the meantime:
- π‘οΈ 10 belowΒ°C β charging stops altogether (risk of electrolyte damage).
- π₯ Above 40.Β°C - power drops to 5-10 W.
- β οΈ In the range 35-40Β°C speed is reduced by 30-50%.
How to maintain the optimum temperature:
- π§ Charge your smartphone in a cool room (not in the sun or near the heater).
- π΄ Remove the case β especially if it is thick or made of silicone.
- π« Donβt play heavy games (Genshin Impact, Call of Duty Mobile) while charging.
- βοΈ Use a cooling stand (such as Black Shark Cooler).
Check the battery temperature:
- Through Settings. β Battery β Battery status.
- In the annex AIDA64 (section Sensors).
- With the help of a secret code: ##4636## β Battery information
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If the battery temperature is above 45Β°C, the charge can be completely disconnected before cooling, in which case only a pause of 10-15 minutes in the off state will help.
6. Update firmware: bugs MIUI brake
In some versions MIUI There are some errors that make it impossible for your smartphone to recognize fast charging:
- V MIUI 12.5 for Redmi Note 10 Pro was a bug with a power limit of 18 watts instead of 33 watts.
- V MIUI 13 for POCO F4 GT The charging was slowed down due to conflict with the game mode.
How to update firmware:
- Go to Settings β About the phone β System update.
- Click Check for updates.
- If you have an update, download it and install it.
If the update doesnβt help, try:
- π Reset settings through Settings β System system β Resetting settings β Resetting network settings.
- π₯ Install the firmware manually through MIUI bootloader (instructions for 4PDA).
- π§ Enable Debugging on USB Adb shell settings put global settings fast_charge_forced_enable 1 (Requires Platform Tools and unlocked bootloader).
β οΈ Warning: On models with HyperCharge (120W) after manual firmware update, battery calibration may reset. To restore it, completely discharge the smartphone (before turning it off), then charge up to 100% without interruptions.
7 Hardware tricks: when software methods don't help
If all of the above methods did not work, the problem may be in the hardware:
- π Battery wear: After 500 charging cycles, the capacity drops by 20 to 30 percent, and the charging speed decreases. You can check the wear at AccuBattery (Health section). If the value is below 80 percent, it's time to change the battery.
- π Type-C port problems: Oxidation or contamination of contacts leads to poor contact. Clean the port with a wooden toothpick (not metal!) and blow in compressed air.
- π οΈ Power controller malfunction: If the smartphone does not charge above 5W from any charge, motherboard repair is required.
For models with removable battery (Redmi) 9A, POCO M3) try:
- Remove the battery for 1 minute.
- Clean the contacts of the battery and smartphone with alcohol.
- Put it back in and try charging it.
If you suspect a controller malfunction, check your smartphone on another charge with support PD (If the power is still low, it's a hardware problem.
How to check the power controller without disassembly?
8. Alternative methods: when nothing works
If the standard methods did not help, there are still some non-obvious solutions:
- π Resetting to factory settings: Sometimes helps with software failures. pre-backup through Settings β System system β Backup.
- π΅ Charging in the off state: On some models (Xiaomi 11 Lite) NE) Charging speed in the off state is 10-15% higher.
- π Using Powerbank with Support QC 3.0: Some external batteries (e.g. Xiaomi) 20000mAh 30W) It gives more power than a power outlet.
- π οΈ Replace thermopaste: On flagships (Xiaomi 13 Ultra), overheating of the processor can slow down charging. In the service center, you can replace the thermopaste with a more efficient one (for example, Arctic). MX-6).
For owners. POCO And Redmi with the unlocked bootloader has a radical method, custom core firmware (like FrancoKernel), which removes the current restrictions. But it's not warranty and can shorten battery life.
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If your smartphone charges faster from a powerbank than from an outlet, the problem is with the power supply or wiring in your home. Try another socket or network filter.