How to safely remove the battery from Xiaomi Redmi 6: instructions with photos and videos

The battery in Xiaomi Redmi 6 is one of the most vulnerable parts after 2-3 years of use. If the phone starts to discharge quickly, spontaneously turn off or the body swells, it's probably time to replace the battery. But how to remove it correctly without damaging the board or plumes? In this article, a step-by-step analysis based on the features of the model, a list of necessary tools and critical nuances that are not mentioned in the standard instructions.

Many users mistakenly believe that it is enough to lid the battery and pull out the battery as in the old "bell ringers." In fact, Redmi 6 has a non-removable battery soldered to the motherboard with a thin plume, improper actions can lead to short circuit, damage to contacts or even fire, we will tell you how to avoid these risks and conduct the procedure as safely as in a service center, but with your own hands.

If you have never disassembled smartphones or doubt the accuracy of movements, it is better to consult professionals. The cost of replacing the battery in the service (from 800 to 1500 rubles in 2026) is often justified, given the risks of damage to the device in the amount of 5-10 times more expensive.

Preparation: security tools and measures

To extract the battery from the Xiaomi Redmi 6, you'll need a dedicated toolkit, and don't try to do it with a knife, a screwdriver for glasses, or nails, and it's almost guaranteed to cause scratches on the body, damage to the plumes, or even a battery failure. Here's the minimum kit you need:

• 🔧 Plastic blade (or mediator) - to separate the body without scratches.
• 🔨 The screwdriver. PH00 — rear-cover.
• 🧲 Magnetic mat or tray – so as not to lose small details.
• 🔋 Insulation tape - for fixing plumes and preventing circuits.
• 🧴 Alcohol (90%+) Cotton swabs - to clean contacts.
• 🔥 Class D fire extinguisher (optional) - in case of fire of a lithium-ion battery.

Pay special attention to the workplace.

• 💡 Well lit (it is better to use a headlight).
• 🧹 Clean from dust and metal sawdust (they can close contacts).
• ⚡ Grounded (use an antistatic bracelet or touch metal objects every 5 minutes).

⚠️ Warning: If the Redmi 6 battery is swelling (the body is deformed, the screen is bulging), do not try to puncture or bend it. Bloating indicates the release of gases inside the battery - this increases the risk of fire. In this case, immediately contact the service or dispose of the device according to the rules for lithium-ion batteries.

Step 1: Shutting off power and removing the back cover

The first and most critical step is to completely shut down the device, and even if the phone is turned off, there may be residual charges on the board that can damage the components when disassembled.

1. Turn off Redmi 6 with a long press on the power button (10+ seconds).
2. Extract. SIM-card and memory card (if any).
3. Wait at least 15 minutes – this is the time required to discharge the capacitors on the board.

Now you can start removing the back cover. On Redmi 6, it is mounted on latches and 10 screws (8 perimeter + 2 under stickers near the Type-C connector). Use the PH00 screwdriver and follow the instructions:

• 🔍 First, unplug two stickers next to the charging connector - screws are hidden underneath them.
• 🔄 Unscrew all 10 screws and fold them onto a magnetic mat (they vary in length!).
• 🕳️ Insert a plastic blade into the gap between the lid and the housing at the 3.5 mm connector.
• 🔄 Carefully drive the blade along the perimeter, disengaging the latches. Start at the bottom edge, there are fewer plumes.

⚠️ Warning: If the lid fails, don't force! Chances are you missed the screw or the latch caught on the battery plume. Check all the mounts and try again from the other corner.

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Before removing the lid, take a picture of the location of the screws on the mat - this will help not confuse them during the assembly. screws of different lengths are responsible for fixing different elements of the board!

Step 2: Disconnect the battery plume

Once the lid is removed, you will see the battery (takes up ~60% of the interior space) and the motherboard with soldered plumes. The main task at this stage is to disconnect the battery from the board to avoid short circuit. The battery plume in Redmi 6 is located at the top of the device and closed with a black safety tape.

Sequence of action:

1. Carefully tuck the protective tape with a nail or plastic spatula.
2. Under the tape, you'll see a white connector with 4 contacts. It needs to be disconnected vertically upwards, not sideways!
3. Use a plastic spatula or tweezers to lift the connector evenly. Don't pull the wires!

If the connector doesn't lend itself, you can heat it up slightly with a hairdryer (temperatures no higher than 60°C) to soften the glue, but don't use metal tools, they can close the contacts.

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Step 3: Remove the battery from the housing

Now that the plume is off, you can start removing the battery itself. In the Xiaomi Redmi 6, it is mounted on high-strength double-sided tape, and can also be further glued to the body.

• 🔥 Hair dryer or thermo-air station (for softening glue).
• 🧊 Plastic card or mediator (for tampering with battery).
• 🧴 Isopropyl alcohol (to remove glue residues).

Step-by-step:

1. Heat the body in the battery area with a hair dryer (50-70 ° C) for 2-3 minutes. This will make the glue elastic.
2. Insert the plastic card under the battery at the top edge (where the train is) and carefully lead it down, separating the battery from the case.
3. If the battery fails, heat it up again. Don't force it, it could damage the aluminum casing or break the battery.
4. After extraction, remove the remains of the glue from the body with alcohol and cotton swab.

⚠️ Warning: If the battery is swelling, it cannot be heated, it can cause ignition, LOCTITE 7649) and plastic scraper, avoiding heavy pressure.

Step 4: Check the battery and prepare for replacement

After extraction, examine the battery for:

• 🔋 Bloating (if the case is deformed, dispose of the battery according to the rules).
• 🔥 Contact oxidation (green or white plaque - a sign of corrosion).
• 📉 Capacity loss (can be checked by multimeter or through the AccuBattery app).

If you are planning to install a new battery, consider the following nuances:

• 🛒 Buy the original battery with the label BM46 (Capacity 3000 mAh, voltage 3.85 V).
• 🔄 The new battery should come with adhesive base – if it is not, use double-sided tape 3M 9448A.
• 🔌 Before installation, check the voltage on the contacts with a multimeter - it should be in the range of 3.7-3.9 V.

If you temporarily left your phone without a battery, close the contacts on the board with insulation tape to avoid circuitry when accidentally touched with metal objects.

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Never use a battery with signs of bloating or oxidation, which can cause fire or damage to the motherboard, and even if the phone turns on, the risk of sudden failure remains high.

Step 5: Install a new battery and build your phone

Installation of the new battery is in reverse order, but with several critical nuances:

1. Clean the contacts on the board and battery plume with alcohol.
2. Stick the new battery onto double-sided tape, avoiding skewing. Pressure should be uniform!
3. Connect the plume to the connector on the board. Make sure it sits tight (the click should be heard).
4. Secure the plume with a protective tape (it comes with a new battery).
5. Set the back cover and twist the screws in reverse sequence. Don't pull over! The threads in the aluminum case easily break off.

After assembly:

• 🔌 Connect your phone to charge and wait for the charge indicator to appear.
• 📱 If the phone does not turn on, check the density of the battery plume fitting.
• 🔋 The first 3 charge-discharge cycles are carried out in gentle mode (do not allow a discharge below 20% and a charge above 80%).

Frequent Mistakes and How to Avoid Them

Even experienced users sometimes make battery replacement mistakes in Redmi 6, and here are the most common ways to prevent them:

Another common problem is that the phone doesn't turn on after the battery is replaced, and the reasons may be:

• 🔌 The sleeve is not tightly connected (check the connector on the board).
• 🔋 New battery discharged (plug charge for 10-15 minutes).
• 🔧 Damaged fee during disassembly (needs diagnosis in the service).

FAQ: Answers to Frequent Questions