Removing the battery from the Xiaomi Redmi smartphone is a challenge that owners face when replacing the battery, repairing after a fall or getting moisture. Unlike older phones with removable covers, modern Redmi models (starting with the Redmi Note 4/5 and later) have a non-shattered case where the battery is glued to the rear panel, which complicates the process, but does not make it impossible with the right approach.
In this article, you will find a step-by-step guide to the different Redmi generations, a list of tools you need, and critical warnings to help avoid damage to the board or display. We will look at both standard models (Redmi 9, 10, Note 11) and flagship models (Redmi K50, K60), where the design may differ. If you have never taken a smartphone apart, this guide will help you do everything neatly, even without experience.
Preparation: What to Know Before Disassembly
Before you take up the screwdriver, evaluate three key factors:
- 🔧 Phone model: Redmi has 8/9 Redmi Note 8/9 The batteries are attached in different ways. 10 Pro uses double-sided tape of increased strength.
- 🔋 Battery condition: If the battery is swelling, its removal requires special care - the risk of damage to contacts on the board increases 3 times.
- 🛠️ Availability of tools: Without plastic spatulas (spudger) and suction cups, you risk scratching the body or tearing off the plumes.
Important: Redmi models from 2022 to 2026 (like the Redmi 12 or Note 13) use a mold memory glue that softens when heated, but recaptures when cooled, which makes it harder to reassemble. If you plan to return the phone to the service center after self-repair, note that autopsy marks may void the warranty.
⚠️ Warning: Do not remove the battery at a charge level below 20%. A discharged battery may spontaneously oxidize upon contact with air, which will lead to corrosion of the contacts on the motherboard.
| Xiaomi Redmi Model | Type of battery attachment | Difficulty of extraction (1–5) | Features |
|---|---|---|---|
| Redmi 5/6/7 | Double-sided scotch | 2 | Easy access, minimal risk of damage to plumes |
| Redmi Note 8/9/10 | Glue + fixers | 4 | Heat and neat smearing are required. |
| Redmi K40/K50 | Memory glue shape | 5 | High risk of damage to flexible display plumes |
| Redmi 12/13 | Glue + metal latches | 4 | A specialized tool is needed to deflect latches |
Essential Tools: What to Buy in advance
To safely remove the battery, you will need:
- 🔨 Screwdriver kit: Cross (PH00) and five-pointed (Pentalobe) P2) near-rotor SIM-tray.
- 🧲 Suction: Diameter 3-4 cm to lift the display (in models with OLED-screens, for example, Redmi K60, The suction cup should be silicone-coated).
- 📏 Plastic blades: 0.1–0.2 mm thick to separate the body and battery.
- 🔥 Dryer or thermal air station: To soften the glue (temperature 60–80)°C, no higher!).
- 🧴 Isopropyl alcohol (90%+): To remove glue residues from contacts.
Tip: If you are working with a Redmi Note 11 Pro+ or later, which uses a graphite heat-dissipating film on the battery, prepare a metal spatula with rounded edges as well – it is often glued to the battery and can break when untidy retract.
Where to buy tools:
- 🛒 AliExpress: Smartphone repair kits (search for Xiaomi Redmi repair tool kit»).
- 🏬 Radio stores: For example, Chip and Deep or local soldering points.
- 🔧 Service centers: Sometimes used tools are sold after repairs.
⚠️ Warning: Do not use metal screwdrivers to tweak the battery - even a slight closure of the contacts B+ and B- can cause the battery to fire!
Step-by-step: how to remove the battery
Let’s take a look at the Xiaomi Redmi Note 10 Pro (similar to most models from 2020 to 2023) and if you have a different model, check out the “Specialities for Specific Smartphones” section below.
- Turn off the phone and remove it. SIM-If the battery is swelling, don't turn on the device, there's a risk of short circuit!
- Heat the back cover with a hair dryer (60–70°C) for 2-3 minutes, especially around the edges.
- Put a plastic blade on the lid, starting at the bottom edge (near the USB-C connector). Use the suction cup to lift evenly.
- Unscrew the screws of the metal plate attachment over the battery (usually 4-6 PH00 screws).
- Disconnect the battery plume from the motherboard. It's locked with a latch -- gently shovel it.
- Tap the battery from an angle where there are no components of the board. Use a thin plastic card or a special tool for batteries (battery removal tool).
- Pull the tape (if you have one), or continue to gently wiggle until the battery separates. Don't force it, you'd better reheat the glue.
The phone is off and discharged to 20-30%|Removed back cover without damage|The battery plume is disconnected from the board|There is isopropyl alcohol on hand to clean contacts|Tools are not metal (except screwdrivers for screwdrivers)-->
Video instructions for visual understanding of the process:
Note: Insert a link to YouTube videos here (e.g., from the "Repair World" channel or "Xiaomi Repair").
Features for specific models Xiaomi Redmi
The battery design of the Redmi range has evolved, and the key differences are:
Redmi 5/6/7/8 series
In these models, the battery is attached to a standard double-sided tape, and the main difficulty is the fragile plume of the fingerprint scanner that goes under the battery, and if you sloppyly extract it, it is easy to break.
Tip: Before lifting the battery, check if there are any additional screws under it (in Redmi 6 Pro, there is sometimes a hidden screw under the sticker).
Redmi Note 9/10/11 series
It uses glue + graphite film, the last one can't be ripped off, it's used for heat sink, carefully separate it from the battery, and then glue it back to the new battery.
The Note 10 Pro and Note 11 Pro+ have added metal latches on the sides of the battery – they need to bend with a spatula before being removed.
Redmi K40/K50/K60 Series
The hardest models to disassemble, the battery is glued with mold memory, and the display and camera plumes are located very close to the battery, with a risk of damage of up to 70% on the first autopsy.
Recommendation: Use an ultrasonic bath to soften the glue (if available) or heat the case for 5-7 minutes with breaks.
What to do if the battery is glued to the board?
Frequent Mistakes and How to Avoid Them
Even the most experienced craftsmen make mistakes sometimes.
- ⚡ Close contacts: Touch metal tools with B+ You can't use dielectric gloves or hold on to isolated parts of the shoulder blade.
- 🔥 Overheating: If you heat the body with a hairdryer longer than 5 minutes or above 80°C, you can melt the plastic latches. SIM-tray or damage screen.
- 📱 Train damage: 60 percent of the time, self-repairing breaks the plumes of the display or camera. Always check their location before removing the battery.
- 🧲 Loss of screws: The screws in Redmi are of different lengths. If you confuse them in places, you risk damaging the board when you build. Use a magnetic mat or marker for marks.
Example: In the Redmi Note 8 Pro, the charging connector often breaks when the battery is not carefully removed, since it is located next to the battery. If the phone does not charge after assembly, check the integrity of the USB-C connector contacts.
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If the battery is swelling, do not try to "press" it or prick it! Bloating indicates the beginning of a chemical reaction inside the battery. Better place the phone in a non-combustible container (for example, a metal can of sand) and take it to the service for a day.
What to do after removing the battery
When the battery is finally removed, follow the following steps:
- Clean the contacts on the motherboard and battery with isopropyl alcohol. This will remove the residue of glue and oxide.
- Check the integrity of the display, camera and fingerprint scanner plumes, and if they are damaged, replace them before you install a new battery.
- Set the new battery up, pre-removal the protective film from the adhesive layer, align it with the contacts, and press it gently.
- Connect the battery plume to the board and lock the latch. Make sure the contacts are not bent.
- Put the phone back together, checking the density of the lid, and twist the screws cross-cross for uniform pressure.
After assembly:
- 🔌 Connect the charger and check if charging is going on.
- 📱 Turn on your phone and make sure it recognizes the battery (in Settings) → The state of the battery shall be displayed voltage).
- 🔋 Calibrate the new battery: discharge the phone to 0%, then charge to 100% without interruptions.
⚠️ Note: If the phone does not turn on after the battery is replaced, but when connecting to the charge shows an indication, the problem may be in the power controller on the board.
Where to buy a new battery Xiaomi Redmi
When choosing a replacement, pay attention to:
- 🔋 Capacity: Must match the original (for example, for Redmi Note 10 Pro – 5020 mAh).
- 🏷️ Original Xiaomi batteries have a marking of the form MBJ4056 (for Redmi 9) or MDY11-EM (for Redmi K50).
- 🛡️ Counterfeit protection: The original battery must have a hologram sticker with QR-code.
Where to buy:
| Source | Pluses | Cons | Average price |
|---|---|---|---|
| Official Xiaomi service | 6 months warranty, original battery | Expensive, long (2-5 days) | 2500–4000 ₽ |
| AliExpress (stores with a rating of 98%+) | Cheaper 2-3 times, a wide range of | Risk of counterfeiting, delivery 2-4 weeks | 800–1500 ₽ |
| Local service centres | Quickly, you can check before buying | Price higher than on AliExpress | 1500–2500 ₽ |
| Avito/Yula | We can find the original used. | High risk of counterfeiting or worn-out battery | 600–1200 ₽ |
Tip: Check the seller's reviews before buying. Fake batteries often have 20 to 30 percent lower capacity and fail after 3 to 6 months. Xiaomi's original batteries are packed in an antistatic package with the company's logo.
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Never buy batteries labeled "Premium" or "Ultra Capacity" without an article.It's 100% fake that can damage your phone.