How to remove the battery from Xiaomi Redmi: all the ways for removable and non-removable batteries

Removing the battery from Xiaomi Redmi is a challenge that users face when replacing the battery, repairing after a fall or eliminating bloating. Unlike older models with removable covers (such as the Redmi 3S or Redmi 4A), modern smartphones in the series — from Redmi Note 10 to Redmi 13 — are equipped with non-removable batteries, fixed on adhesive basis, which complicates the process, but does not make it impossible.

In this article, we will discuss all the current ways to extract the battery from Xiaomi Redmi, including models with removable and non-removable batteries, list the necessary tools and warn about typical errors that can lead to damage to the board or display.

If you've never taken a smartphone apart, we recommend that you first read the video guides for your particular model (e.g., Redmi Note 12 Pro 5G or Redmi A2+) — the mount design may be different.

1.Preparation: What to do before removing the battery

Before you start dismantling Xiaomi Redmi, follow the necessary steps to minimize the risks:

• 🔋 Discharge the battery before 25-30%. Fully charged battery more dangerous when mechanically exposed - the risk of fire is higher.
• 🛠️ Prepare the instruments: plastic mediators (or guitar mediators), screen suction cup, screwdriver PH00 or Y00, tweezers, isopropyl alcohol (90%+), hair dryer (not construction!).
• 📱 Back up your data. Even if you're confident in your actions, a reset or a board damage can happen by accident.
• 🧤 Wear an antistatic bracelet or periodically touch a grounded metal object to avoid static discharge.

If you have a removable model (such as a Redmi 5A or Redmi 6), the process is simplified by simply putting a mediator on the back and disconnecting the battery from the contacts. Non-removable batteries (Redmi Note 11, Redmi 10C and later) require a complete disassembly of the case.

⚠️ Warning: Do not use metal tools to tamper with the battery! Even a small scratch on the battery can lead to a short circuit. Plastic mediators or special shoulder blades are the only safe option.

2. disassembly of the case: how to get to the battery

To remove the battery from the Xiaomi Redmi with a non-removable battery, you need to remove the display module, which is the same process for most models, but there are nuances:

1. Heat the body. Use a dryer at a minimum temperature (up to 60°C) to soften the adhesive around the perimeter of the screen. Keep the hair dryer at a distance of 10-15 cm, evenly warming the edges for 2-3 minutes.
2. Screen tampering. Suck on the bottom of the display (near the Home button, if any) and pull up. Insert a plastic pickup into the gap.
3. Careful compartment. Swipe the mediator along the edge, gradually increasing the gap. Don't push too hard, there are plumes under the screen!

When you take off the display, you'll see the battery glued to the back cover, and it's connected to the motherboard with a thin plume with a connector, and first of all, you'll unplug that plume to avoid short circuit.

Battery plume off the board|The screen is placed aside (does not hang on the plumes)|Tools at hand (mediators, alcohol)|The workplace is lighted and free from metal objects-->

3. Methods of removable battery

For models with a glued battery (Redmi Note 11, Redmi 12, etc.), there are three main methods.

Method with isopropyl alcohol (recommended)

The safest way for beginners is to dissolve the glue without damaging the battery:

1. Apply a few drops of isopropyl alcohol (90%+) under the edge of the battery with a syringe or pipette.
2. Wait 1-2 minutes until the alcohol is absorbed.
3. Carefully tuck the battery into a plastic spatula and pull it up. If it resists, add alcohol.

Method with mediator and heating

It's fine if you don't have alcohol.

1. Heat the body with a hairdryer (as when taking off the screen).
2. Insert the mediator under the battery and slowly lead along, separating the adhesive layer.
3. If the battery fails, reheat the problem area.

Method with thread or line (for experienced)

A thin, strong thread is used (for example, a guitar string or line):

1. Strip the thread under the battery from one end.
2. Carefully "saw" the glue, moving the thread back and forth.
3. Do not push hard - the risk of tearing plumes or damaging the battery.

⚠️ Warning: If the battery is swelling, don't try to remove it yourself -- the risk of fire is extremely high! Contact the service center. You can recognize a bloated battery by the raised back cover or the "slamming" sound when pressed.

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If the battery is too glued, try combining the methods: first alcohol, then a mediator. Do not use acetone or other solvents - they can damage the plastic parts of the case!

Removable batteries: instructions for older models

In Xiaomi Redmi smartphones with removable batteries (for example, Redmi 3S, Redmi 4X, Redmi 5), the process is as simple as possible:

1. Turn off the phone and remove the tray for SIM-map.
2. Tap the back cover with a plastic card or mediator starting at the bottom edge (near the Micro-USB/Type-C connector).
3. Remove the lid - under it you will see a battery attached to the contacts.
4. Carefully tuck the battery on the side and pull it up. Don't use metal objects!

In some models (like the Redmi Note 3 Pro), the lid is mounted on the latches around the perimeter. If it doesn't respond, check if there are any unlatched areas left. An application of excessive force can break the mounts.

5. Common Mistakes and How to Avoid Them

Even experienced users sometimes make mistakes when removing the battery.

• 🔥 Damage to battery plume. Always disconnect the connector until you try to remove the battery. If the plume breaks, the phone won't turn on.
• 💥 Using metal tools, one careless move, and a scratch on the battery can cause a fire.
• 🔌 Heating above 60°C. Overheating deforms the plastic of the case and may damage the screen or board.
• 🔋 There's a lot of pressure on the bloated battery, which can cause the shell to rupture and leak the electrolyte.

Another common problem is the glue residue on the new battery, which, if you install a replacement, clean the seat with alcohol and use a new adhesive layer (sold in repair kits), will prevent the battery from shifting when vibrating.

1. Is the battery plume connected to the board?

2.Are there any damages on the battery contacts?

3. whether the back cover is properly installed (sometimes it presses the power button).-->

6. Recycling of an old battery: safety rules

Old Xiaomi Redmi batteries can't be thrown away in the trash - they contain toxic metals and can spontaneously ignite.

• ♻️ You can take it to the electronics office. Most cities have special battery containers.
• 🔋 Keep it separate from metal objects. tape the contacts with tape to avoid short circuits.
• 🚫 Don't throw into the fire. Lithium batteries explode when heated!
• 📦 Don't mail. Lithium battery shipments are regulated by special regulations.

If the battery is swelling, don’t prick it, it can cause toxic gases to be released, put it in a non-combustible container (such as a metal box) and dispose of it as soon as possible.

7.How to check a new battery before installation

Before installing a new battery in Xiaomi Redmi, make sure it is working:

1. External inspection: The battery must be free of swelling, scratches or oxidation on the contacts.
2. Use a multimeter: normal voltage for a lithium battery is 3.7-4.2 V. If less than 3.5 V, the battery is discharged and may not charge.
3. Compatibility: Make sure the capacity (e.g., 5000 mAh for the Redmi Note 12 Pro+) and connector match the original.

If you buy a battery that is not original (for example, from Baseus or Remax), check the reviews about the model – some cheap counterparts quickly lose capacity or swell.

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After the battery is replaced, perform 2-3 full charge/discharge cycles (0% to 100%) to calibrate the power controller.

FAQ: Frequent questions about battery replacement in Xiaomi Redmi