How to check the battery status on Xiaomi Redmi Note 6 Pro: the complete guide

Why it is important to monitor the battery status of the Redmi Note 6 Pro

The battery is one of the most vulnerable components of the Xiaomi Redmi Note 6 Pro, which loses capacity and efficiency over time. Even with careful use, the battery can wear out by 20-30% after 2-3 years, leading to rapid discharge, sudden shutdowns and charging problems. This problem is especially relevant for models of 2018, where batteries with a rated capacity of 4000 mAh were often installed, but the real capacity after wear could fall to 3000 mAh and below.

Checking the battery status allows you to identify critical problems in time, from bloating (which is dangerous for safety!) to software failures in the power controller. For example, if your Redmi Note 6 Pro discharges in 3-4 hours with minimal load or heats up during charging, this is a direct signal for diagnosis. In this article, we will analyze all the available methods of checking the battery, including hidden engineering menus, third-party applications and hardware tests that work for this model.

The fastest and most reliable method is to use the hidden Android menu, which is available on all Xiaomi smartphones without root-rights, which requires no additional software installation and shows the real state of the battery, including wear, temperature and voltage.

Instructions:

📱 Open the phone app and enter the combination: ##4636##.
🔧 In the menu that appears, select Battery Information).
📊 Note the parameters: Level – current percentage; Status – must be Charging (charged) or Discharging (discharged); Health – if Good is indicated, wear is minimal; Temperature – 25–40°C, above 45°C dangerously!

⚠️ Note: If the Health section says Unknown or Replace soon, it means that the battery controller cannot determine its condition, 80% of the time it indicates severe wear (over 50%) or a malfunction of the power board.

The combination does not work on some firmware MIUI|Try entering the code through the Phone app, not through the keyboard.|Make sure you don’t have modified firmware installed (e.g. LineageOS)|Reboot your smartphone and try again.-->

Method 2: Using the AccuBattery application for detailed analysis

AccuBattery (available on Google Play) is one of the most accurate tools for monitoring battery health, analyzing charging cycles, real capacity and wear rate, which is especially useful for the Redmi Note 6 Pro with its specific battery architecture.

How to use:

Download and install AccuBattery (the free version is quite functional).
Charge your phone to 100% and leave it on charge for another 15-20 minutes (for calibration).
Use your smartphone as normal until the charge drops to 15-20%.
Open the app and go to the Health tab. Here you'll see: 📉 Design capacity (for example, 3200 mAh instead of 4000 mAh – means wear and tear). ~20%); 🔄 Number of charging cycles (more than 500 cycles – critical wear); ⚡ Discharge speed in mAh/h (normal for Redmi Note 6 Pro – 100-150 mAh/h in standby mode).

Parameter in AccuBattery	Normal for Redmi Note 6 Pro	Critical significance
Design capacity	3800-4,000 mAh	Less than 3,000 mAh
Battery wear and tear	0–15%	More than 40%
Temperature during charging	25–35°C	Above 45°C.
Discharge speed (screen off)	50–100 mAh/hour	More than 200 mAh/hour

💡 Useful tip: AccuBattery also shows which apps use up the most charge.If you notice that com.miui.home (launcher) MIUI) or com.android.systemui consume more than 10% per day, which is a sign of software lag. Try resetting the launcher settings or rolling back the update. MIUI.

Once a month |Only when problems arise |Never checked |Uspeak special apps-->

Method 3: Checking through ADB (for advanced users)

If you want the most accurate data on the battery, including factory settings, you can use ADB (Android Debug Bridge), which requires connecting the smartphone to your computer, but gives you access to hidden parameters that standard applications do not show.

Step-by-step:

Download and install Platform Tools (includes adb.exe).
Turn on USB Debugging: Go to Settings → About Phone → MIUI Version; Click 7 times on MIUI Version to activate Developer Mode; Return to Settings → Additional → For Developers and enable USB Debugging.

Redmi Note 6 Pro

adb shell dumpsys battery

You will get a conclusion with parameters, for example:

level: 85


scale: 100




health: 2 (GOOD)




voltage: 3847 mV




temperature: 320 (32.0°C)




technology: Li-ion

⚠️ Note: If the health command output indicates value 3 (OVERHEAT), 4 (DEAD) 7 (UNKNOWN), In such cases, continued use of the smartphone without replacing the battery can cause the case to bloat or even fire (especially when using non-original chargers).

What do the health values of ADB mean?

1 (UNKNOWN) — condition unknown (often after resetting settings)|2 (GOOD) — battery normal|3 (OVERHEAT) — overheating, cooling is required|4 (DEAD) — Battery is defective and replacement is required|5 (OVERVOLTAGE) — overstrain (dangerously!)|6 (UNSPECIFIED_FAILURE) — misstep

Method 4: Visual inspection and hardware diagnostics

Not all battery problems can be detected software-based, for example, battery bloating is one of the most dangerous malfunctions that doesn't always show up in the software. If your Redmi Note 6 Pro's case becomes convex, the back cover is moving away or the screen is "playing" when pressed, this is a direct sign of bloating.

How to check:

🔍 Place your smartphone on a flat surface (like a table) with the screen up. If it swings or there is a gap between the case and the surface, the battery is swelling.
📏 Check the gaps between the body and the screen: if they have increased (especially in the area of the camera), this is a sign of deformation.
🔋 Try removing the back cover (if it's removable) and the bloated battery will be visible to the naked eye, and it will become "puffy" and may have signs of corrosion.

⚠️ Attention: If you find bloating, immediately turn off your smartphone and do not use it until you have replaced the battery! a bloated battery can damage the display, motherboard or even ignite.

💡

If the back cover of the Redmi Note 6 Pro is glued (in some versions), do not try to open it yourself - contact the service center. Damage to the fingerprint plume or antenna contacts can cost more than replacing the battery.

Method 5: Testing with CPU-Z (alternative method)

The CPU-Z app is known as an iron analysis tool, but it also provides battery data, a method less accurate than AccuBattery, but useful for quick verification without lengthy calibration.

How to use:

Install CPU-Z from Google Play.
Open the Battery tab.
Pay attention to this: 📊 Level - current charge; ⚡ Voltage - voltage (normal for Redmi Note 6 Pro: 3.7-4.2 V); 🔥 Temperature - temperature (critically above 45)°C); 🔄 Health - condition (if Fail is specified, battery malfunctions).

💡 Useful advice: B CPU-Z If your Redmi Note 6 Pro lasts less than 4-5 hours when you’re in active use (social media, instant messengers, video), this indirectly indicates battery wear or high background energy consumption.

How to extend the life of the battery Redmi Note 6 Pro: 7 practical tips

Even if your battery is still in good condition, following a few rules will help delay its wear and tear:

🔌 Avoid deep discharge (below 10%) and full charge (above 90%.
❄️ Do not use your smartphone in the cold (below). -10°C) or in the heat (above) +35°C). Redmi Note 6 Pro automatically shuts down at a battery temperature above 60°C.
🔄 Every 3 months, perform battery calibration: completely discharge the phone, then charge to 100% without interruptions.
🚫 Don't use cheap chargers or cables.The original Xiaomi adapter on the 5V/2A (10W) — best-case.
🛑 Turn off background activity of unnecessary apps in Battery settings → Charge consumption.
🌙 Activate a dark theme and reduce the brightness of the screen — AMOLED-Redmi Note 6 Pro display consumes less power when displaying dark colors.
🔄 Update regularly MIUI — In new versions of the firmware optimized energy consumption.

⚠️ Warning: If you use wireless charging (via an adapter), remember that it is 20 to 30 percent less efficient than wired charging and heats the battery more. For the Redmi Note 6 Pro with its non-removable battery, this can speed up wear and tear.

💡

The most dangerous factor for the battery is high temperature. If your smartphone heats up above 45 ° C during charging or games, immediately check the status of the battery and cool the device.

Frequently asked questions

Can I replace the battery with the Redmi Note 6 Pro on my own?

Technically, yes, but it requires experience and special tools. The battery in this model is glued to the case, and if you do not cleanly dismantle, you can damage the plume of the fingerprint scanner or antenna contacts. We recommend contacting the Xiaomi service center or trusted workshops. The cost of replacing the battery is from 1500 to 2500 rubles (2026).

Why does the Redmi Note 6 Pro run out of power even after a battery change?

The reasons may be different: 🔧 Poor battery (Chinese noname batteries often have real capacity) 2500–3000 mAh instead of the stated 4000 mAhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh); 📱 Software lags (e.g., failure of com.miui.analytics or Google Play Services); 🔌 Failure of the power controller on the motherboard; 📡 Problems with the communication module (constant network search) 4G/LTE Use AccuBattery for diagnostics or CPU-Z, Check the charge rate in the settings. MIUI.

How to reset data on charging zikt after replacing the battery?

After the battery is replaced, the charge cycle data in the controller is reset automatically when you first fully charge. However, if you want to reset statistics in applications (for example, in AccuBattery), do the following: Open AccuBattery; Go to Settings → Reset; Choose Reset Charging History; Charge the phone to 100% for a new calibration. In the engineering menu (#4636##), resetting battery data is impossible - this is protection against fraud with a guarantee.

What is the real battery capacity of the Redmi Note 6 Pro after 2 years of use?

The average wear of the Redmi Note 6 Pro battery after 2 years of active use (1 full charge cycle per day) is: 🔋 15-25% - with careful use (charging with original RAM, avoiding overheating); 🔋 30-50% – with intensive use (games, frequent charging, high temperatures); 🔋 More than 50 percent -- if the phone was often discharged to zero or used non-original chargers, for example, if you wear 30 percent, the real capacity will be zero. ~2800 mAh instead of 4000 mAh, which will lead to a reduction in operating time by 25-30%.

Can I use the Redmi Note 6 Pro with a faulty battery?

Not recommended, but a faulty battery may be: 💥 Blow up and damage the screen or motherboard; 🔥 Overheat and ignite (especially when charging); ⚡ Issue unstable voltage, which will lead to failures in the processor or memory; 📵 Disconnect at 20-30% charge due to a failure of the controller.If the battery is swollen or its "health" in the diagnosis is marked as Replace soon, use the smartphone only before replacing the battery, avoiding charging and loading.