How to find out what battery is in Xiaomi Redmi Note 7: all ways to check

Why it’s important to know the battery model in the Redmi Note 7

Xiaomi Redmi Note 7 was released in 2019 and is still popular with users due to the balance of price and characteristics. However, over time, the battery capacity decreases and owners face the need to replace. The first thing to do before buying a new battery is to clarify its exact model and technical parameters, which will help to avoid mistakes when choosing a compatible battery and prevent possible problems with the operation of the device.

Not all batteries for the Redmi Note 7 are the same: they can vary in capacity, manufacturer, and even physical size. BM47 or BM48, Whereas non-original analogs may use other designations, if you install an incompatible model, it can cause a rapid discharge, overheating, or even failure to charge the system due to a mismatch in the power controller.

In this article, we will discuss all the available ways to determine the model of the battery, from simple (via the settings of the phone) to advanced (disassembly of the case and visual inspection), you will also learn how to distinguish the original battery from a fake and what to do if the information about the model is erased or missing.

Method 1: Checking through phone settings (without disassembly)

The fastest and safest method is to use built-in tools. MIUI. It doesn't require you to install additional apps or disassemble the device. Here's how to do it:

1. Open the Settings app on your Redmi Note 7.
2. Go to About Phone (usually at the bottom of the list).
3. Tap on All specifications or Device Information (name may vary depending on version) MIUI).
4. Scroll down to the Battery block, and it will show the current capacity (e.g., 4,000 mAh) and sometimes the battery model.

Unfortunately, most of the time, this menu only displays capacity, not the exact model, but if you see a value of 3,900-4,100 mAh, it confirms that the phone has an original battery (since the non-original ones often have an understated capacity).

If there is no model information in the settings, try an alternative path:

• 📱 Enter the code ##4636## (test menu).
• 🔋 Go to the Battery Information tab (Battery Information).
• 🔍 Here you can display the model, voltage and battery temperature.

⚠️ Note: #4636### does not work on all versions MIUI. If the menu doesn’t open, this is not the way to go.

Method 2: Using Third-Party Applications

If standard methods fail, you can use specialized utilities that read data from the battery controller and output detailed information, including model, manufacturer and even number of charging cycles.

• 🔧 AccuBattery – shows capacity, wear and model of the battery (if supported).
• 📊 CPU-Z — Battery displays technical data including Technology (Battery type) and Health (State of Health).
• 🔍 AIDA64 — The most informative application, where in the Battery menu you can find the model, voltage and temperature.

Example of data from AIDA64 For the Redmi Note 7:

Battery model: BM47 (or BM48)




Technology: Li-Polymer




Capacity (estimated): 4,000 mAh




Capacity (current): 3700 mAh (wear ~7%)




Voltage: 3.85 V




Temperature: 28°C

If the appendix shows the model BM47 or BM48, This is the original Xiaomi battery. Other designations (e.g., the original Xiaomi battery, ATL, SDI, LISHEN) They point to the cell manufacturer, but not the battery model.

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Before installing applications, check reviews - some utilities may show incorrect data on custom firmware.

Method 3: Visual inspection of the battery (disassembly of the phone)

If the software methods don't work, you'll have to disassemble the device, which is an extreme case, because it requires accuracy and the risk of damaging the phone.

• ⚠️ Disassembly will void the warranty (if it is still valid).
• 🛠️ You will need tools: plastic spatula, Torx screwdriver T3 and Phillips PH00, screen-suction.
• 🔋 The battery can be glued - do not pull it by force so as not to damage the plumes.

Step-by-step:

After the battery plume is detached, you will see a sticker labeled with the original Xiaomi Redmi Note 7 batteries bearing the following designations:

If the label is worn or missing, note:

• 🔢 Serial number – usually starts with letters MDY, MDB or MDG.
• 📏 Sizes – the original battery has dimensions ~75×70×4 mm.
• 🔌 Connector – must be 3-pin (power, data, earth).

⚠️ Warning: If the battery is unmarked or looks suspicious (unfaithful type, low-quality glue), there is a high risk that it is fake.

Method 4: Checking by serial phone number

Every Xiaomi Redmi Note 7 It has a unique serial number (S/N), So you can use it to find out about components, including the battery:

1. Find the serial number: In settings: About the phone → All characteristics → Serial number. On the device box (barcode sticker) Under the battery (if the phone is already disassembled).

Xiaomi Verify

The test results will indicate the device model and, sometimes, battery information.

If the site doesn't show battery data, try an alternative service called IMEI.info. IMEI Your phone (you can find out by code *#06#) and the report may display a battery model.

You can also use the serial number to verify the authenticity of your phone if the site is in error. S/N, It's a sign:

• 📱 Refurbished phone after repair (possibly with unoriginal parts).
• 🔧 The device is stitched with custom firmware (for example, LineageOS).
• ⚠️ The device can be counterfeit (especially if purchased with hand).

Method 5: Determination by the appearance and behavior of the phone

If all the previous methods have failed, you can try to identify the model of the battery by indirect signs.

1. Battery operating time

• ⏳ Original battery (4000 mAh): at an average load holds 6-8 hours of screen time.
• ⚡ Non-original (3500-3800 mAh): discharges in 4-5 hours, even if the phone indicates a capacity of 4000 mAh.

Charging temperature

• 🌡️ The original battery is heated to 35-40°C for fast charging.
• 🔥 Counterfeiting can overheat to 50°C and higher, which is dangerous!

3. Bloating of the hull

• 📏 Put your phone on a flat surface with your screen up. If it's swinging, it's a sign of a battery bloating.
• 🚨 Bloated batteries need to be replaced urgently – they can damage the screen or ignite.

Also, pay attention to the charging speed:

• ⚡ The original battery charges from 0 to 100% in 1.5-2 hours (with a power supply of 18 W).
• 🐢 Counterfeiting charges longer (3)+ hours) or do not support fast charging.

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If the phone turns off at 20 to 30 percent charge or shows a “jumping” percentage of the battery, this is a sure sign of wear and tear or an unoriginal battery.

How to distinguish the original battery from a fake

Xiaomi’s parts market is flooded with counterfeit batteries that are almost indistinguishable from the original ones.

Additional methods of verification:

• 🔍 Check it out. QR-code on the package via Xiaomi Authenticity Check.
• 📦 Original batteries come with protective film on contacts.
• 🔋 On the back of the original battery is the date of production (format) YYYY-MM-DD).

⚠️ Warning: Fake batteries often have an understated real capacity, such as a sticker that says 4,000 mAh, and in fact 2,500-3,000 mAh. You can check this with the AccuBattery app after 2-3 charging cycles.

What to do if the battery model is unknown

If none of these methods helped determine the battery model, follow the following algorithm:

1. Check compatibility with the phone model. For the Redmi Note 7 (lavender) batteries are suitable: BM47, BM48, HB476565ECL. Redmi Note 7 Pro (violeta) - only BM48.
2. Buy a battery from Xiaomi's official service center, which guarantees originality and compatibility, and costs higher, but the risk is minimal.

If you are going to buy a battery, consider:

• 📏 Size is nothing more. 75×70×4.5 mm.

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Before buying, ask the seller to send a photo of the stickers on the battery. Compare the font and location of the items with the original (can be found on forums, for example, 4PDA).

FAQ: Frequent questions about the Redmi Note battery 7