Battery in smartphones Xiaomi Redmi: all about batteries of different models

Xiaomi Redmi smartphones have long been popular for their combination of price, performance and long battery life, but even the most reliable technology needs attention over time — especially the battery, which wears out faster than other components. If your Redmi starts to run out in a few hours, turn off in the cold or suddenly shut down when you are in the cold. 20-30% The problem is probably the battery.

In this article, we will discuss which batteries are installed in Xiaomi Redmi smartphones of different series, how to check their condition, how the original batteries differ from their counterparts, and whether you can replace them yourself. You will also learn which models support fast charging, how to calibrate the battery and what to do if the phone does not hold a charge. Information is relevant for all modern lines, from the budget Redmi A to the flagship Redmi K.

Important: battery characteristics may differ even within the same model – for example, versions with support are released for different regions. 5G We've collected data on the most common modifications, but for accuracy, always check the labeling on the battery itself or in the documentation on the phone.

1. Types of batteries in smartphones Xiaomi Redmi

All modern Xiaomi Redmi smartphones are equipped with lithium polymer (Li-Po) batteries, lighter and thinner than traditional lithium-ion (Li-Ion) batteries, and less susceptible to memory effects, but they also have drawbacks: sensitivity to high temperatures and gradual degradation even with rare use.

Key features of the batteries in Redmi:

• 🔋 Nominal capacity - indicated in milliamp hours (mAh). 12 Pro+ battery-powered 5000 MAC, and Redmi. A1 — on 5000 MC, but the actual capacity may differ 5-10% due to production tolerances.
• 🔌 Voltage is usually 3.85V (standard for most smartphones).Some models with ultra-fast charging support may have dual-cell batteries with a voltage of 7.7V (for example, Redmi). K60 Ultra).
• 🔄 Number of charging cycles - about 500-800 full cycles before the capacity of the 20%. After that, the battery is considered to be very worn out.
• 🛠️ Design: 99% of the time, the battery is soldered into the case and not intended to be replaced by the user, with the exception of some models for the Chinese market with removable covers (for example, the old Redmi). 4X).

The latest Redmi models (starting in 2022) use batteries with technology. MTW (Multi-Tab Winding reduces internal drag, allowing faster charging and longer storage capacity. For example, the Redmi Note 12 Pro+ with such a battery supports charging power 120W, However, previous models were limited. 33W-67W.

⚠️ Warning: If you see a battery with a capacity well above the stated capacity (for example, a "6,000 mAh" model with a 5,000 mAh passport), it is either a fake or a low-quality battery.

2. Battery capacity in popular Redmi models

Below is a table with the battery specs for the most common Xiaomi Redmi smartphones. data is taken from official specifications and tests of independent laboratories (for example, GSMArena or DXOMark).

Note that 5,000 mAh is the most common capacity, which is the standard for most smartphones today. However, real life depends not only on the battery, but also on software optimization.+ It will last longer than Redmi. 10C, Thanks to a more energy-efficient processor and display with adaptive refresh rate.

If your model is not listed in the table, check the battery capacity through the phone menu:

1. Go to Settings → About the phone → All the characteristics.
2. Find the battery capacity or battery capacity.
3. If you don’t have data, use apps like AccuBattery (available on Google Play).

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To extend the life of the battery, avoid full discharge (below 10%) and overheating (over 40).°C) Optimal charge range from 20% to 80%.

3.How to check battery wear in Redmi

Over time, the capacity of any battery decreases. If your Redmi starts to run out too quickly, the first thing you do is check the wear and tear.

Method 1. Through a hidden menu MIUI

1. Open the phone app and dial the combination: ##4636##.
2. In the menu that appears, select Battery Information.
3. Look at Battery Health, if it's below 80 percent, you should change the battery.

Method 2.AccumBattery application

• 📱 Install AccuBattery from Google Play.
• 🔄 Come on. 2-3 full charge-discharge cycle for calibration.
• 📊 In the Health section, you will see the current capacity in mAh and the percentage of wear and tear.

Method 3. via ADB (for advanced users)

adb shell dumpsys battery

In the conclusion, find the capacity line - this is the current capacity. Compare it with the passport (for example, if it was 5000 mAh, and became 3500 mAh, the wear is 30%).

⚠️ Note: If you check with ##4636### and see Unknown instead of Health percentage, it means that the battery controller does not support this function.

Original vs. Non-Original Batteries: Which to Choose?

When it comes to replacing, the user is faced with a choice: buy the original Xiaomi battery or save on the analogue.

Original batteries:

• ✅ Compatibility guarantee – exactly suitable in size and connectors.
• ✅ Compliance with safety standards – less risk of bloating or fire.
• ✅ Support for fast charging – analogues may not work at full power (e.g, 120W instead 67W).
• ❌ High price - in 2-3 double-price.
• ❌ Hard to find – often sold only on authorized services.

Non-original (analogues):

• ✅ Low price - from 500 before 1500 ruble 2000-4000 original.
• ✅ Wide selection - sold on AliExpress, in spare parts stores.
• ❌ Low quality risk – can swell, quickly lose capacity.
• ❌ There is no guarantee – even if the battery lasts a year, there is no one to claim.
• ❌ Rapid charging problems – some analogues do not support high currents.

If you decide to buy an analogue, pay attention to:

• 🏷️ Marking – must match the original (e.g, BM4X For the Redmi Note 10 Pro).
• 📦 Packaging – quality analogues are supplied in hologram blisters.
• 🔍 Reviews – Check the seller’s rating and buyer comments.

Check compatibility with the phone model

Make sure that the capacity does not exceed the passport by more than 10%.

Look for batteries labeled "Grade A" or "Premium"

Buy only from trusted sellers with a guarantee

Avoid batteries without labels or with damaged packaging-->

5. Self-replacement of the battery: step-by-step instructions

Replace the battery in Xiaomi Redmi is possible on your own, but it requires accuracy and minimal skills with equipment. 90% of models the battery is glued to the case, so you can not do without special tools.

What you need:

• 🔧 Set of screwdrivers (cross, flat, flat, T3-T5 for some).
• 🧲 Screen suction cup (or mediator).
• 🔥 Hair dryer or thermo-air station (for softening glue).
• 🩹 Alcohol or isopropyl alcohol for cleaning contacts.
• 🔋 New battery (original or qualitative analogue).

Step-by-step process:

1. Turn off the phone and remove it. SIM-map.
2. Heat the back cover with a hair dryer (temperature) ~60°C) during 2-3 minutes to soften the glue.
3. Put the lid on a mediator or a plastic spatula. Start at the corner near the charging connector.
4. Unscrew the screws that hold the metal plate over the battery.
5. Disconnect the battery plume (it is usually attached to the motherboard).
6. Carefully tuck the battery with a plastic spatula, preheating it (glue is very sticky!).
7. Install a new battery, plug in the plume and assemble the phone in reverse order.

Video instructions for specific models can be found on YouTube (see "Redmi [your model] battery replacement" for example, for the Redmi Note 10 Pro, the process takes about 30 minutes, and for the Redmi, the process takes about 30 minutes. K50 — for an hour due to a more complex design.

⚠️ Warning: If you see that the battery is swelling when you remove it (the lid is raised, the body is deformed), do not try to puncture or bend it! Lithium polymer batteries can ignite if damaged.

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Self-replacement of the battery will void the warranty Xiaomi (if it is still valid).If the phone warranties, contact the official service.

6. How to extend the life of the battery: tips for operation

Even the best battery life lasts longer if you follow a few rules, as recommended by Xiaomi engineers and lithium polymer battery experts:

What to do:

• 🔌 Use an original charger or certified analogues (such as from Baseus or Anker). Cheap RAMs can damage the charging controller.
• ☀️ Avoid overheating - do not leave your phone in direct sunlight or in your car in the summer: 10-35°C.
• 🔋 Try to keep the charge in range 20-80%. Full discharges and charges to 100% accelerate degradation.
• 🛌 If you don’t use your phone for a long time (for example, you keep it in storage), charge it up to 50% and turn it off.

What not to do:

• ❌ Using your phone while charging for resource-intensive tasks (games, video editing) – this increases battery heating.
• ❌ Charge to the point – if the phone shows 100% and you leave it on overnight charging, the battery is subjected to additional load.
• ❌ Use wireless charging constantly – it heats the battery more than wired.
• ❌ Keep your phone discharged – if the capacity has dropped to 0% and it has been lying there for a few weeks, the battery may fail.

In the latest versions MIUI (starting MIUI 13 has a built-in Smart Charging feature that automatically limits the charge to 80 percent if you plug your phone in at night:

1. Go to Settings → Battery and performance.
2. Select Battery Settings → Smart charging.
3. Activate the option and set a schedule (for example, from 23:00 to 7:00).

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If you play mobile games frequently, set a limit. FPS 60 fps will reduce the load on the processor and reduce battery heating.

7.Redmi's Frequent Battery Problems and Their Solutions

Xiaomi Redmi users often face typical battery-related issues. Let’s look at the most common and ways to fix them.

Problem 1: The phone is running out quickly

• 🔍 Reason: Background processes, worn-out battery, high screen brightness.
• ⚡ Solution: Check battery wear through AccuBattery. Turn off autobrightness or set a value no higher than 60%. Check charge consumption in Settings → Battery → Use and suspend "glutty" applications.

Problem 2: The phone is not charging or charging too slowly

• 🔌 Cause: Damaged cable, contaminated connector, faulty charger.
• ⚡ Solution: Try a different RAM and cable (preferably original). USB-C Check if the battery is swollen (if so, a replacement is required).

Problem 3: The phone turns off at low temperature

• ❄️ Reason: Lithium polymer batteries lose capacity in the cold. -10°C real capacity may fall on 30-50%.
• ⚡ Solution: Keep your phone in your inner pocket, closer to your body. Use heated covers (sold on AliExpress). Don't leave your phone in your car in the winter.

Problem 4: Battery swelling

• ⚠️ Cause: Overheating, use of non-original ROMs, physical damage.
• ⚡ Solution: Stop using your phone immediately! Don't try to puncture or squeeze the battery. Contact a replacement service center.

If none of the tips worked, maybe the problem is the power controller on the motherboard, which would require a diagnosis at the service center.

FAQ: Frequently Asked Questions About Xiaomi Redmi Batteries