Modern smartphones are equipped with complex power management algorithms designed to preserve battery health. One such feature is Adaptive charging or Optimized Chargingwhich artificially slows down the battery charging process after reaching 80% to complete it just before you wake up. For many users, this becomes a problem when you need to quickly replenish the charge, and the phone “thinks” you have a few more hours left.
Disabling this feature may be necessary in situations where you change your sleep schedule or are planning a long trip where access to an outlet will be limited. However, it is worth understanding that regular charging to 100% without interruption can accelerate the degradation of the chemical composition of Li-Ion cells in the long term. In this article we will look at how to find and deactivate this option on different versions of the operating system.
The disabling procedure does not require obtaining root access and is performed using standard system tools. All you need to do is go to the appropriate settings menu, but the location of the item may vary significantly depending on the manufacturer of your device. Below are detailed paths for the most popular shells.
The principle of adaptive power mode
The function, which users often call “smart charging,” analyzes your smartphone usage habits. The algorithm remembers what time you usually go to bed and when you remove the device from charging in the morning. If you connect the cable at night, the system quickly charges the battery to 80% and then pauses the process.
Recharging to 100% occurs only a short time before your predicted awakening. This is done in order to minimize the time that the battery spends under high voltage in a fully charged state. High voltage is the main enemy of battery longevity, causing heating and chemical aging.
Despite the good intentions of the developers, the behavior of the algorithm is not always predictable. Sometimes your phone miscalculates and you wake up with 85% charge instead of the expected 100%. In such cases, disabling the function becomes the only way to ensure a full charge by the required time.
⚠️ Warning: Disabling adaptive charging means that your battery will remain at 100% voltage all night long. This can reduce the overall battery life by 10-15% over two years of active use.
Disabling the function on pure Android and Pixel
On Google Pixel smartphones and devices with a pure Android operating system, the setup path is as unified as possible. The interface here is intuitive, and the function is usually hidden in the section dedicated to the battery itself. You don't need to look for hidden menus or use third-party software.
First, open the main menu Settings of your device. Scroll down the list to item Battery. In some versions of Android, this section may be called Power or have an icon in the form of a battery. Inside you will find a switch responsible for optimization.
Click on the item Adaptive charging. A detailed description of the function will open, where the system will explain how it learns your daily routine. To deactivate the mode, simply move the slider to the inactive position. Changes take effect instantly.
If you don't see the "Adaptive charging" option in the Battery menu, try updating the Google Play Services app through the Play Market, as this feature depends on system services.
It's worth noting that on some Pixel models there is an additional function Charge Limitthat strictly limits the charge to 80% or 90%. It must be turned off separately if your goal is to charge the phone to maximum. This option is often located in the same menu, but below the main switch.
Settings in Samsung's One UI shell
Samsung smartphone owners are faced with the most confusing menu system, as the company has implemented several levels of battery protection. The function may be called differently depending on the shell version One UI. Most often, it is hidden deep in the device’s maintenance settings.
Go to Settings and find the section Device maintenance (or Device care). Click on the icon Battery. Next, select Additional battery settings or Settings batteries. This is where the switch is located Battery protection.
In the latest versions of One UI, Samsung offers several modes: “Basic”, “Adaptive” and “Maximum”. To completely disable restrictions, you need to select the "Basic" mode or completely turn off the protection function. In the "Adaptive" mode, the phone will behave the same as on pure Android, pausing charging at night.
- 🔋 The "Basic" mode disables all restrictions, allowing you to charge the device to 100% without delay.
- 🛡️ The "Protection" mode limits the maximum charge to 85% for extending battery life.
- ⏰ Adaptive mode learns your habits and completes charging when you wake up.
After making changes, the system may ask you to confirm the action, warning about a possible reduction in battery life. Confirm the action by pressing Enable or OK. Now your Samsung will charge at maximum speed until the indicator is completely full.
☑️ Checking Samsung settings
Power management in MIUI and HyperOS (Xiaomi, POCO, Redmi)
The Xiaomi ecosystem uses its own implementation of power saving functions, which is often called Optimized Charging. In new versions of the HyperOS shell, the menu logic remains similar to MIUI, but the visual design may have changed. Users should be careful when searching for the desired toggle switch.
Open the application Settings and scroll the list to the section Battery. At the top of the screen or in the additional settings menu (three dots in the corner), look for the item Battery protection or Optimized charging. On some models, this item is placed in a separate submenu Battery status.
Inside you will see a switch Optimized charging. When activated, the system slows down charging after 80%. To disable, simply deactivate this switch. This menu may also contain a function Charge limit, which is also recommended to be turned off if you want to charge the phone completely.
⚠️ Attention: In some regions and on certain Xiaomi models, the charging optimization function may not be available for manual shutdown via the standard menu. In this case, it is controlled exclusively by cloud algorithms.
If the standard path does not lead to results, try using the application Security, which is preinstalled on all brand devices. Inside it there is a section Batterywhere some system energy saving settings are duplicated. Sometimes the desired switch is located right there.
Specifics of ColorOS, OxygenOS and Realme UI
Smartphones from the brands OPPO, OnePlus and Realme work on the basis of very similar shells. The smart charging function here is often called Night Charging Optimization (Night Charging Optimization). You can find it in the general section of the battery settings, but the path may vary depending on the firmware version.
Go to Settings and select the section Battery. Find the item More or Additionalif it is not immediately displayed on the main screen of the section. The switch will be located here Optimizing night charging.
Principle works similarly to other systems: the phone slows down the process when you sleep. Disabling this feature will allow the device to ignore the time of day and charge at the maximum supported power. This is especially true for owners of models that support ultra-fast charging SuperVOOC.
Why does the phone heat up when turned off?
When optimization is disabled, the phone will use maximum charging power constantly. This leads to increased heat generation. Do not cover the device with a blanket while charging to avoid overheating.
The latest updates to ColorOS and Realme UI also introduced a feature Smart charging 80%. It severely limits the charge level unless you manually change the settings. Make sure that all types of restrictions associated with the percentage fill threshold are disabled.
Alternative methods through the engineering menu
If the standard settings do not allow you to disable the function, or it is blocked by your telecom operator, you can try using the engineering menu. This method is suitable for advanced users and requires caution, since changing incorrect parameters can lead to unstable system operation.
To enter the engineering menu, open the application Phone and enter a special code. For most devices based on MediaTek processors this is ##3646633##, and for Qualcomm it is often used ##4636##. After entering the code, a hidden testing menu will open.
##4636##
or
##3646633##In the menu that opens, go to the tab Battery Information or Power. There may be hidden settings for controlling the charge current and cutoff logic. However, the interface of this menu greatly depends on the manufacturer and version of Android, so there are no universal instructions.
| Manufacturer | Access code | Menu section | Risk of failure |
|---|---|---|---|
| MediaTek (Xiaomi, Realme) | ##3646633## |
Power / Battery | Medium |
| Qualcomm (Sony, Motorola) | ##4636## |
Battery Info | Low |
| Samsung | #0# |
Battery Status | Low |
| Pixel / Pure Android | Unavailable | - | Absent |
Be extremely careful: do not change the voltage values or currents if you are not sure of their purpose. Resetting settings in this menu is usually only possible by completely resetting the device to factory settings, which will result in data loss.
The influence of third-party applications and scripts
Sometimes the reason for the “smart” behavior of the smartphone is not system settings, but installed optimization applications or automation scripts. apps like Greenify, AccuBattery or proprietary utilities from the manufacturer can intercept control of the charging process.
Check the list of installed applications and remove those that have permission to manage power or access system battery settings. Also look at the section Digital wellbeing or Sleep mode. Turning on sleep mode can activate a power saving profile that limits background activity and charging speed.
If you use automation apps such as Tasker or MacroDroid, check the created macros. You may have a script configured that reduces the charging current at certain times of the day or when connected to a specific Wi-Fi network (for example, your home network).
⚠️ Warning: Third-party applications that promise to “make charging 2x faster” are often a marketing ploy. They cannot physically increase the current supplied by the charger, and can only turn off background processes, which gives minimal effect.
To be completely sure, try booting your smartphone into Safe Mode. If in this mode the phone charges quickly and to 100% without delay, then one of the applications you installed is causing the problem. You will have to use elimination to find the culprit.
Third-party optimizer applications often create more problems than they solve, conflicting with the built-in Android system power management algorithms.
Frequently asked questions (FAQ)
Why does my phone only charge to 80% and stop?
This is the work of the battery protection function. The system pauses charging to prevent overcharging and overheating. Find the "Battery protection" or "Optimized charging" option in the battery settings and disable it if you need a full charge.
Is it harmful to constantly charge your phone to 100%?
Yes, leaving a lithium-ion battery at 100% voltage for a long time accelerates its chemical aging. It is recommended to keep the charge in the range of 20-80% for maximum durability if you do not plan to change the device in the next couple of years.
Can smart charging be turned off permanently?
Yes, after turning off the switch in the settings, the function will not activate on its own. However, after resetting the device to factory settings or a major firmware update, the settings may return to default values, and the test will have to be repeated.
Why does the phone still charge slowly after disabling the function?
The charging speed depends not only on the software settings, but also on the temperature of the device, the power of the power supply and the quality of the cable. If the phone overheats, the system will automatically reduce the charge current regardless of the adaptive charging settings.
Is there a difference between “Adaptive” and “Optimized” charging?
Basically, these are synonyms used by different manufacturers. Both terms refer to an algorithm that adjusts the charging speed to the user's schedule. The only differences can be in the logic of operation: some pause charging, others simply reduce the current.