How to know exactly what battery is in your Xiaomi phone: from Redmi Note to Xiaomi POCO F

Why it’s important to know Xiaomi’s battery model and when it’s going to come in handy

Have you ever wondered what battery is in your Xiaomi smartphone? For most users, this information seems unnecessary until there's a problem. And problems happen a lot: the phone starts to run out quickly, the body swells, or you decide to replace the battery yourself. That's where the difficulties begin.

The manufacturer rarely lists battery details in documentation, and dozens of conflicting tips can be found online. - Xiaomi, Redmi, POCO Black Shark uses batteries from different suppliers — ATL (Amperex Technology Limited), SDI (Samsung SDI), Lishen and others, and even one model (like the Redmi Note 10 Pro) can have batteries with different capacity or voltage, and you can make the mistake of buying a replacement?

In this article, we will look at all the official and informal ways to identify a Xiaomi battery model, from hidden menus to physical inspection, how to distinguish the original battery from a fake, what codes to type in the engineering menu, and why even ##4636### doesn’t always tell the truth.

Method 1: Checking through phone settings (official method)

The easiest way is to look at the standard settings on your smartphone. Unfortunately, Xiaomi doesn't always display detailed battery information, but some models still have the data available. Here's how to find it:

1. Open the Settings app (cog icon).
2. Go to About Phone (in older versions of MIUI - About Device).
3. Tap a few times on the MIUI version until you get a message You are a developer! (this will unlock hidden options).
4. Return to the main settings menu and select Additional → For developers.
5. Scroll down to the Battery Status or Battery Information block.

Here you can see:

• 🔋 Level of wear (if maintained)
• 📊 Capacity (current and nominal, for example, 4500 mAh / 5000 mAh)
• 🔌 Tension (usually) 3.85V or 4.4V modern-model)
• 🏭 Manufacturer (e.g., manufacturer, ATL or SDI)

However, this method has a serious drawback: in most Xiaomi phones (especially the budget series Redmi and the other two). POCO) The battery status section is either missing or only shows basic information.

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If you don’t have battery data in your settings, try updating it. MIUI It's all up to the latest version (MIUI 14+) The battery information sometimes appears.

Method 2: Engineering menus and secret codes

If standard settings don’t work, it’s time to turn to hidden service menus. Xiaomi, like other manufacturers, leaves diagnostic tools available through special codes in the firmware. Importantly, these codes do not work on all models and their input should not be interrupted!

Try the following combinations (enter the phone as a number in the app):

• 📱 ##4636## → Battery information (shows voltage, temperature, charge level, but not always model)
• 🔧 ##284## or #6484## → Battery test (works on some Redmis and POCO)
• 🔍 ##2834## → charger and battery information (rarely found in newer models)

For example, on Xiaomi. 11T The pro code ##4636## can show you this data:

Charge level: 87%




Status: Charging (USB)




Power supply: USB




Temperature: 32.5°C




Voltage: 4.21V




Technology: Li-polymer

But the battery model or manufacturer is not listed here - only general parameters.

More advanced option - use of engineering menu MTK (for phones on MediaTek processors):

1. Enter the code ##36446337##.
2. Go to Hardware Testing → Battery.
3. Battery may be displayed here. ID or Manufacturer.

⚠️ Warning: Do not change the settings in the engineering menu unless you know their purpose! This can cause system failure or even battery damage.

Method 3: Diagnostic applications (AccuBattery, CPU-Z, and others)

If Xiaomi's built-in tools don't give you the information you need, the app side will come to the rescue, and they analyze the data from the battery controller and often show more than the standard settings.-3 Android:

How to use AccuBattery (the most popular option):

• 📥 Download the app from Google Play.
• 🔄 Run a full charge cycle (0% to 100%) for calibration.
• 📊 Go to the Health tab - here will be indicated the estimated capacity and wear.
• ℹ️ The information may show the manufacturer (for example, ATL or SDI).

CPU-Z and AIDA64 They are similar, but they show Battery. ID Or Model Name, which is your key to finding a replacement. AIDA64 The way is this: Battery → Battery Information → Model.

Make sure the app has access to battery data (permissions in Android settings)

Compare the current capacity with the nominal (the difference is more than 20% - a signal to replace)

Record a model of the battery or its ID (useful)

Check the temperature in simple and under load (normal: 25-40)°C)

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Method 4: Physical examination (if the phone is collapsible)

If the software doesn't work, you have to take the phone apart and look at the battery directly, which is the last resort, but sometimes the only one, and we warn you, disassembling yourself is insecure and can damage the device if you do it wrong.

How to safely inspect the battery:

• 🛠️ Use a plastic mediator or a special spatula for disassembly (metal can damage the body).
• 🔋 The battery is usually glued - do not pull it by force, otherwise you will tear the plume.
• 🔍 On the battery itself, look for a sticker with information: Model, Part Number, Capacity.
• 📸 Take a picture of all the inscriptions – they will be useful for finding a replacement.

Example of inscriptions on the battery Xiaomi Redmi Note 9 Pro:

Model: BM47




Capacity: 5020mAh 3.85V




Manufacturer: ATL




Date: 2020-05-15

Here. BM47 — This is a model of a battery that can be driven into a search engine to buy an analogue.

⚠️ Warning: If the battery is swelling (phone body is curved, screen is "going away"), don't try to remove it yourself! Bloated lithium polymer batteries can ignite if damaged.

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Physical inspection is the most reliable way, but only for collapsible models. In monolithic smartphones (for example, Xiaomi 12 or Mix 4), the battery is hidden under the screen, and it is impossible to reach it without special tools.

Method 5: Phone model search (databases and service centers)

If all the previous methods have failed, you can then identify the model of the battery from the model of the phone.

• 📄 Xiaomi support site sometimes lists battery details in Specifications or User Manual sections.
• 🔧 Service centers: Contact Xiaomi’s authorized service to ask you to name a battery model (even if you don’t plan to repair it).
• 🌍 Databases: Sites like GSMArena or PhoneArena sometimes specify the type of battery.
• 🛒 Parts stores: Enter a phone model on AliExpress or eBay + "Battery – often written in the descriptions of compatible articles.

Example of search for POCO X3 Pro:

1. Go to the model page on GSMArena.
2. The battery can be found in the Battery unit, which can be specified as Non-removable Li-Po 5160 mAh battery.
3. Copy this data and search in parts stores, adding keywords: POCO X3 Pro battery 5160mAh ATL.

You can also use compatibility tables (see next section).If you have found several battery options for your model, look at:

• 🔢 Capacity (must match the original) ±5%).
• ⚡ Tension (usually) 3.85V or 4.4V).
• 🏭 Manufacturer (preferably give preference) ATL or SDI).

Battery compatibility table for popular Xiaomi models

Below we have collected data on batteries for the most common smartphones Xiaomi, Redmi and POCO. Note: One model can use batteries from different manufacturers (for example, the Redmi Note 10 Pro may have batteries). ATL or SDI).

If your model is not in the table, try to find information in forums, for example:

• 🔗 XDA Developers (partition of your model).
• 🔗 4PDA (Topics for Xiaomi repair).
• 🔗 Reddit r/Xiaomi.

These resources often share photos of batteries and their characteristics, for example, in the topic about the Redmi Note 8 Pro on the Internet. 4PDA You can find these data:

Battery model: BM40 (ATL) or BM41 (SDI)




Capacity: 4500 mAh




Voltage: 3.85V




Compatible analogues: HB4166R3ECW, HB6166R3ECW

How to distinguish the original Xiaomi battery from a fake

When buying a new battery for Xiaomi, the risk of a fake battery is very high. Counterfeit batteries not only fail quickly, but can ignite when charged. Here are 5 signs of the original battery:

• 🏷️ Hologram sticker: Xiaomi's original batteries have a holographic sticker with the brand logo that changes color when tilted.
• 🔢 Serial number: Must match the data in the phone settings (checked through AIDA64).
• 📦 Packaging: Original batteries come in a tight box with a logo Mi/Redmi barcoded.
• 🔧 Connector: Counterfeiting often has thinner or crooked soldered contacts.
• 📏 Sizes: The original battery should fit perfectly into the nest without gaps.

Also pay attention to the price: the original battery for Xiaomi can not cost less $15-20 If the seller offers a battery for $5-10, it's a guaranteed fake.

⚠️ Warning: Fake batteries often have overcapacity (e.g., 6,000 mAh instead of the original 5,000 mAh) This is a marketing hoax – the actual capacity is lower and the risk of bloating is higher.

Where to buy the original batteries:

• 🏬 Xiaomi official service centers (the most reliable option).
• 🌐 AliExpress (only with verified sellers with a rating of 98%+ and photo reviews).
• 🛒 Specialty stores (e.g. iFixit).

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Before buying a battery, check its article in Xiaomi database or forums. 9S archetype — BM47 (ATL) or BM48 (SDI).

FAQ: Frequent questions about Xiaomi batteries