Xiaomi smartphones are known for their value for money, but even the most reliable devices require repair over time. One of the most common questions users ask is how to remove the battery from the phone. The reasons can range from replacing a bloated battery to completely disassembling before selling. However, the process is not as simple as it seems. Today’s Xiaomi smartphones (especially models after 2018) are equipped with non-removable batteries soldered to the motherboard or fixed glue. Wrong actions can lead to damage to plumes, short circuits or even fire.
In this article, we’ll break down the step-by-step battery recovery algorithm for different Xiaomi models, list the tools you need, and tell you what mistakes beginners most often make, and you’ll learn when to contact a service center, and when you can cope with yourself. If you’ve never disassembled a smartphone before, we recommend you carefully study all the warnings — one wrong step can cost you the device.
Preparation: What to Know Before Disassembly
Before you start screwdriver, make sure you fully understand the risks. The batteries in Xiaomi smartphones (as in most modern devices) are not designed to be replaced on their own. The manufacturer uses special glue, and in some models (for example, Xiaomi 12 Pro or Redmi Note 11), the battery is additionally secured with metal latches. Attempting to tear it off by force can lead to rupture of contacts or even fire.
Here are the key points worth considering:
- 🔋 Battery type: In models up to 2019 (for example, Redmi Note 7), the battery is often mounted on double-sided tape, and in newer ones (for example, Xiaomi 13) – on a glue with high adhesion.
- ⚡ Battery charge: if the battery is inflated or damaged, in any case do not connect the phone to charge - this can provoke an explosion.
- 🛠️ Guarantee: Self-disassembly automatically voids Xiaomi warranty (if it is still valid).
- 🔥 Fire safety: Work away from flammable items and have a Class D fire extinguisher on hand (for lithium batteries).
If your Xiaomi is still under warranty, it is better to contact an authorized service center. the cost of replacing the battery there will be from 1,500 to 4000 rubles (depending on the model), but you will get the original battery and keep the warranty for other components.
⚠️ Attention: if the battery is swelling (the phone body is deformed or the screen is bulging), do not try to remove it yourself. Lithium batteries in this state are extremely unstable and can ignite from the slightest mechanical impact!
Essential tools: what to buy for disassembly
To safely remove the battery from Xiaomi, you will need a specialized set of tools. Using improvised tools (knives, screwdrivers of the wrong size) often causes damage to plumes or scratches on the body.
| Tool. | Appointment | Where to buy | Cost (rupe) |
|---|---|---|---|
| Plastic mediators (2-3 units) | For careful putting of the cover and disconnecting the battery | AliExpress, Beru, Ozone | 100-300 |
| Pentalobe P2 screwdriver | For propellers in Xiaomi models (e.g. Mi 11) | Tool shops, ChipDeep | 200-500 |
| Screen suction cup | Helps remove the front panel without damage | Any electronics store | 150-400 |
| Isopropyl alcohol (90%+) | To remove glue residues and degreasing contacts | Pharmacies, hardware stores | 200-600 |
| Thermo-air station (dryer) | Softens the glue under the battery | AliExpress, Yandex Market | 1 500-5 000 |
If you don't plan to do repairs regularly, you can do without the thermophene, but then the process of removing the battery will take much longer. The alternative is to heat the body with a hair dryer (at maximum temperature), but this is less efficient.
⚠️ Warning: Never use metal tools to tamper with the battery! Even a small circuit of the contacts can lead to instant fire.
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Before disassembling, take a picture of the location of all the plumes and screws on the phone, this will help to properly assemble the device back and avoid “extra” parts.
Step-by-step: how to remove the battery from Xiaomi
The disassembly process may vary slightly depending on the model, but the overall scheme is the same for most Xiaomi smartphones. We will look at the universal algorithm using the example of the Redmi Note 10 Pro (one of the most popular models). If you have a different model (for example, the POCO X3 or Mi 11 Lite), look for video disassembly for your device – the location of screws and plumes may differ.
Turn off the phone and remove it. SIM-map|Remove the back cover (if it is removable)|Disconnect the battery plume from the motherboard|Heat the body with a hairdryer (60-70°C) for softening the glue|Prepare plastic mediators for the battery tampering-->
Step 1: Shutting off power and removing the back cover
Turn off the phone completely before disassembling and wait until it cools down (if it was charged before).
- With the help of a suction cup, gently pull the screen upwards, creating a small gap.
- Insert a plastic mediator into the slot and slowly lead them around the perimeter, disconnecting the latches.
- If the cover does not lend itself, slightly heat it with a hair dryer (not higher than 70 ° C) - this will soften the glue.
Step 2: Disconnect the battery plume
When you take the lid off, you'll see the battery locked in a metal plate or film, and the first thing you need to do is disconnect it from the motherboard.
- Find the battery plume (usually black or red).
- Carefully put the connector on a plastic spatula. Don't pull the wires, it can tear the contacts off!
- Check with a multimeter that the voltage at the battery contacts is 0 V (this is a guarantee that the power is turned off).
Step 3: Removing the battery
Now the most important thing is to separate the battery from the housing.
- If the battery is secured with double-sided tape (as in the Redmi 9A), pull a special black tape (pull-tab) under the battery.
- If the battery is glued (as in Xiaomi 12T), heat the body with a hair dryer to 60-80 ° C and gently poke it with a plastic mediator at the edges.
- If the battery is not going away, heat the problem area again.
What to do if the battery is too tight?
Frequent Mistakes and How to Avoid Them
Even experienced craftsmen sometimes make mistakes when retrieving the battery, and here are the most common jambs and their consequences:
- 🔥 Short circuit: occurs when a metal tool touches both the plus and the minus of the battery, resulting in instant heat, smoke, or even flames.
- 💥 Train damage: most commonly affected by the plume of the display or camera, sign - after assembly, the screen does not work or the camera gives out artifacts.
- 🔋 Battery rupture: if you pull a battery with force, it can burst, releasing toxic gases.
- 📱 Body damage: scratches, chips or cracks on the back cover (especially if it is glass, like in the Xiaomi Mi 10).
How do you minimize the risks?
- ✅ Use only plastic or wooden tools to work with the battery.
- ✅ Before disconnecting the battery plume double check that the phone is turned off.
- ✅ If the battery is swollen, do not heat it - this can speed up the reaction and lead to an explosion.
- ✅ Work on a clean, flat surface without carpets or fabrics that can electrify.
1. Is the battery plume connected correctly?
2. whether there is damage on the motherboard (blackened areas, burned elements).
3. whether the firmware is preserved (sometimes when the power is turned off, the smartphone requires flashing).-->
Xiaomi models: features of battery recovery
Xiaomi’s smartphone design varies greatly depending on the series and year of release, and the following are key features for popular models:
| Model | Type of battery attachment | Difficulty of extraction (1-10) | Features |
|---|---|---|---|
| Redmi Note 8/9/10 | Double-sided scotch + latches | 4 | Pull-tab is often missing, and the battery is moderately glued. |
| POCO X3/X4 | Glue + metal plate | 6 | Heat is required to 70-80°C. The battery plume is located under a metal screen. |
| Xiaomi Mi 11/12 | Strong glue + graphite pad | 8 | High risk of damage to the display plume. It is recommended to use cut wire. |
| Redmi 9A/9C | Scotch, no latches. | 3 | One of the easiest models to do self-repairing is to take the battery out of the car. 10-15 minute. |
| Xiaomi 13/14 Pro | Glue + aluminum frame | 9 | It's a complex design with a cooling system, and you don't have to know it without experience. |
If your model is not in the table, look up the disassembly on YouTube for "teardown model name" such as "Xiaomi POCO F4 teardown" and help you understand where the screws are and how the battery is attached.
⚠️ Note: In wireless charging models (such as the Xiaomi Mi 10 or Mi 11 Ultra) the Qi coil is under the battery. If the battery is not properly removed, it can easily be damaged and wireless charging will stop working!
What to do after removing the battery
Yeah, the battery's finally out! But what's next? Here are the steps you need to take before you install a new battery or build a phone:
- 🧹 Cleaning the case: remove the glue residues with isopropyl alcohol and a lilac-free wipe. Don't use acetone - it can damage plastic parts!
- 🔍 Contact check: inspect the battery connector on the motherboard. If the contacts are oxidized, clean them with a blower or special liquid.
- 🔋 Test of new battery: before installation, check the voltage on the new battery with a multimeter.
- 📱 Phone Check: Connect your phone to charge without a battery (if the model supports such power) and make sure it turns on.
If you are installing a non-original battery, be prepared to:
- ⚡ Capacity may be lower than the declared (for example, instead of 5000 mAh will be 4500 mAh).
- 🔄 Working hours will be reduced by 10-30% compared to the original.
- 🚨 There is a risk of bloating or overheating (especially in cheap Chinese counterparts).
1. Charge the phone to 100% and hold on charging for 2 hours.
2. Discharge to 0% (until it turns off).
3. Repeat the cycle 2-3 times.
This will help the power controller to more accurately determine the level of charge.-->
When is the best time to contact the service center
While it is possible to remove the battery from Xiaomi yourself, there are situations where the risk is not justified.
- 🔥 The battery swelled or deformed the body.
- 💦 On the battery visible traces of corrosion or leakage of electrolyte.
- 📱 The phone does not turn on even after connecting to the charging.
- 🛠️ You have a model with a complex design (for example, Xiaomi Mix Fold or Black Shark).
- ⚡ You are not sure about your skills or are afraid of damaging your phone.
The cost of replacing the battery in the service center Xiaomi (2026):
| Model | Cost (rupe) | Repair time |
|---|---|---|
| Redmi Note 10/11 | 1 800–2 500 | 1-2 hours |
| POCO X3/X4 | 2 000–3 000 | 2-3 hours |
| Xiaomi 12/13 | 3 500–5 000 | 3-5 hours |
| Black Shark 4/5 | 4 000–6 000 | 1 day |
If you decide to use the service, choose official Xiaomi centers or proven workshops with good reviews. Avoid garage repairs - they often install substandard batteries that can swell in 2-3 months.