How to remove the battery from the phone Xiaomi: instructions with photos and warnings

Removing the battery from a Xiaomi phone is a procedure that requires replacing the battery, repairing the motherboard, or cleaning the case from dust. Unlike older devices with removable covers, modern Xiaomi smartphones (from Redmi Note 5 to Xiaomi 14 Ultra) have a non-shatterable design where the battery is glued to the body, which complicates the process, but does not make it impossible for a user with minimal skills.

In this article, we'll take a step-by-step approach to disassembling the battery, list the tools you need, discuss the risks (from plume damage to fire), and give you specific model recommendations. We'll focus on workplace preparation, which will reduce the likelihood of short circuits or loss of small parts. If you've never taken your smartphone apart, you'd better trust the service center to do the procedure, but you can do it yourself with care and patience.

Preparing for battery removal: tools and safety

Before you start disassembling, make sure you have everything you need, and if you don't have one tool, you can damage your body or battery, and here's the minimum set:

• 🔧 Plastic mediators (2-3 pieces) - for careful liding and disconnection of plumes.
• 🔨 Set of screwdrivers (cross-haul) PH00, flat 1.5 mm, five-pointed Y00 for some).
• 🔥 Isopropyl alcohol (90%+) — Cleaning contacts and removing glue residues.
• 🧲 Magnetic mat or tray - so as not to lose screws.
• 🔋 Suction - will help remove the back cover on models with adhesive attachment (for example, Poco) F5).
• 🛡️ Gloves and safety glasses – the battery can ignite if damaged.

Also, prepare the workspace: it should be well lit, without carpeting (small parts are easily lost) and with access to an outlet (in case you need a soldering iron to unplug the plumes). Never disassemble the phone on a soft surface - static electricity can damage the motherboard.

⚠️ Warning: If the battery is swelling (phone cover is raised or the screen is "bent"), do not try to remove it yourself! The risk of fire or explosion in this case is extremely high.

Step-by-step: how to remove the back cover

The first step is to dismantle the back panel, and different Xiaomi models may have different mounts:

• 📱 Redmi Note 8/9/10, Poco X3 — latch-lid + perimeter.
• 📱 Xiaomi 11/12/13, Mix 4 — glue + plug-in.
• 📱 Black Shark - Additional screws under rubber legs.

Common algorithm:

1. Turn off the phone and remove it. SIM-map.
2. Heat the edges of the cover with a hairdryer (temperature not higher than 60 ° C) - this will soften the glue.
3. Insert a plastic mediator into the gap between the lid and the case (start at the bottom edge where the charging connector is).
4. Carefully drive the mediator around the perimeter, snapping the clamps. Do not force - if the lid does not respond, heat again.

Is the phone off?|Whether removed SIM-memory-card?|Whether tools are prepared?|Did you heat the edges of the lid with a hairdryer?-->

On aluminum-body models like the Xiaomi 12S Ultra, the lid can sit tighter, so the suction cup will help. Hold it to the screen and pull it up while you put the mediator on.

Disconnection of plumes and batteries: the procedure

Once you remove the lid, you'll see the battery glued to the body and some plumes. First of all, you turn off the battery, and it will prevent short circuits. The battery plume is usually placed under a black protective film and fixed by a connector.

Algorithm:

1. Remove the protective film (if any) with tweezers.
2. With a screwdriver, gently pull the connector lock and disconnect the plume.
3. Unstick the battery with a plastic spatula. If it's glued heavily, use isopropyl alcohol to dissolve the glue.

⚠️ Warning: If the battery plume is disconnected, the phone is turned on or squeaky, stop working immediately! This is a sign of a short circuit.

Plastic mediators | Metal blades | Special set for smartphones | Handmade tools | Never repaired-->

Removal of the battery: methods and risks

Xiaomi's battery is glued to the body with double-sided tape or special glue, and there are several ways to remove it:

• 🔥 Heating with a hair dryer - softens the glue, but requires caution (do not overheat above 60)°C).
• 🧴 Isopropyl alcohol - dissolves glue, but can damage rubber seals.
• 🪛 Plastic blade – mechanical method, the risk of battery damage is minimal.
• 🧲 Special devices (e.g. iFixit Battery Removal Tool) are safe, but expensive.

The safest way is to combine heating with a plastic blade. Heat the body with a hairdryer for 1-2 minutes, then gently tuck the battery from the edge. If it doesn't respond, drop the alcohol under the battery and wait 30 seconds. Don't use metal tools - they can puncture the battery!

On Xiaomi models with graphene batteries (such as the Redmi Note 12 Turbo), the adhesive may be more persistent, in which case use isopropyl alcohol of high concentration (99%) and increase the exposure time to 1-2 minutes.

Installation of a new battery: nuances and verification

After removing the old battery, clean the seat of the glue residue with alcohol, make sure the contacts on the motherboard are intact.

1. Remove the protective film with the adhesive side (if any).
2. Carefully apply the battery to the place, making sure that the plume is not twisted.
3. Press the battery for 10-15 seconds to fix.
4. Connect the plume to the motherboard and lock the connector.

Before assembling your phone, be sure to check the new battery:

• Connect the charger and make sure the phone is charging.
• Check the charge level in the Settings → Battery.
• Run a stress test (such as a game or benchmark) – if the phone doesn’t overheat, it’s okay.

💡

If the battery is quickly discharged after replacing the battery, calibrate the battery: completely discharge it, then charge it to 100% without interruption. Repeat the procedure 2-3 times.

Frequent Mistakes and How to Avoid Them

Even experienced users make mistakes when replacing the battery.

• 🔌 Undisabled battery plume – can lead to short circuit during dismantling.
• 🔥 Overheating with a hair dryer – melts plastic parts and damages the screen.
• 🛠️ Using metal tools – punctures the battery.
• 🧲 Loss of screws - leads to backlash of the body and damage to plumes.
• 📉 Incorrect calibration – new battery shows wrong percentage of charge.

To avoid problems, follow the three-check rule:

1. Check the battery shutdown twice (visually and multimeter if any).
2. Check the compatibility of the new battery with the phone model (the battery case should be marked with the same marking as the original).
3. Check the tightness of the body after assembly (are there any gaps, backlashes).

1. Connecting the battery plume.

2. Integrity of contacts on the motherboard.

Conformity of voltage of the new battery (must be) 3.8V–4.4V).-->

Features for specific Xiaomi models

Some Xiaomi smartphones have unique nuances when replacing the battery.

• 📱 Redmi Note 11 Pro+: The battery is glued to a metal plate - it must be removed separately.
• 📱 Xiaomi 12 Pro: battery plume hidden under the screen – requires a complete disassembly.
• 📱 Poco F4 GT: additional screws under rubber plugs at speakers.
• 📱 Black Shark 4: Battery is divided into two parts – remove them in turn.

For models with wireless charging (such as the Xiaomi 13 Pro), note the coil, which can interfere with dismantling, and it must be carefully disconnected without damaging the wire.

If you’re working with Xiaomi on a Snapdragon 8 Gen 2 processor (like the Xiaomi 13 Ultra), be careful with the cooling system – it’s often integrated with the battery.

FAQ: Answers to Frequent Questions