Replacement of battery with Xiaomi Redmi 5A: Complete guide with photos and nuances

Xiaomi Redmi 5A

In this article you will find detailed instructions for replacing the battery with Redmi. 5A From choosing a quality battery to calibrating it properly after installation, we'll look at what tools you'll need, how to avoid common errors, and what to do if your phone doesn't turn on after you've replaced it. And also – we will tell you whether it is worth contacting the service center or you can cope independently.

⚠️ Important: Redmi 5A It has a non-removable case with adhesive battery attachment, and the wrong actions can damage the plumes, the display, or the motherboard. If you've never taken a smartphone apart, you should be able to assess your strength soberly.

Signs that it is time to change the battery

How do you know if the battery is the problem, not the software failure or charger? Here are the key symptoms of a dying battery on Xiaomi Redmi 5A:

• 🔋 The phone's running out of power. 2-3 hour with minimal load (social networks, messengers).
• 📉 The percentage of charge jumps: for example, from 40% immediately drops to 15% after rebooting.
• ⚡ Charging is extremely slow or interrupted (especially if the cable and power supply are serviceable).
• 🔌 The device is switched off when 20-30% charge and not activated without connecting to the network.
• 🌡️ The battery swelled (seen on the raised back cover or screen).

If you know any of these signs, it's time to act, and a bloated battery can't be ignored, because it can damage the internal components or even ignite.

💡 Tip: Check the actual battery capacity before replacing with an app like AccuBattery (Android) that is below 60% of the factory’s (3,000 mAh for Redmi) capacity. 5A) — battery to be replaced.

Which battery to choose for Redmi 5A: original vs analogues

The battery quality is not only the life of the phone, but also the safety of the phone, and there are three options on the market:

1. Original Xiaomi battery (article) MBJ4066 or MBJ4067). Pros: guaranteed compatibility, optimal resource (500+ Cons: high cost (1500-2000 ₽) and risk getting into a fake.
2. Certified analogues (e.g. from Patona, Baseus, Remax) Pros: cheaper than the original (800-1200 ₽), Cons: there may be slight deviations in the capacity.
3. No-name batteries (with AliExpress, markets). Pros: price from 300 ₽. Cons: low resource, risk of bloating or fire.

🔍 How do you distinguish the original from the fake?

• 🏷️ It should be on the label. QR-code that leads to the Xiaomi website.
• 📦 Packaging is a tight blister with the brand logo, not a plastic bag.
• 🔧 The battery contacts should be golden in color, without traces of oxidation.

Critical information: batteries for Redmi 5A The Redmi 5 is not interchangeable. 5A The battery is thinner (3.85 mm vs. 4.1 mm in Redmi 5) and has a different connector.

⚠️

WARNING: If you buy a battery on AliExpress or in unofficial stores, be sure to check the reviews with the photo! counterfeits often have a thickened case that will not fit into the Redmi. 5A free-lid.

Preparing for replacement: tools and safety

To replace the battery with Xiaomi Redmi 5A, you will need:

• 🔧 Plastic blades (2-3 (e) or mediators for disassembly of the shell.
• 🔨 Thin screwdriver (cross, size) PH00 or PH0).
• 🔥 Hair dryer or thermo-air station (for softening glue).
• 🧴 Isopropyl alcohol (90%+) glue-residue.
• 📦 New battery (see section above).
• 🧲 Magnetic mat or screw container.

🛠️ Additional (optional):

• 📸 Lupus or magnifying glass for working with small details.
• 🧤 Gloves (to avoid leaving fingerprints on internal components).
• 🔋 External battery (power bank) for testing after assembly.

⚠️

Warning: Do not use metal blades to smack the lid! They can damage antenna contacts around the perimeter of the Redmi body 5A, Which will cause problems with cellular or Wi-Fi.

🔹 Security measures:

1. Turn off the phone and remove it. SIM-map + memory-card.
2. Work on a flat, clean surface without carpets (static electricity!).
3. Do not touch the motherboard with your bare hands – use an antistatic bracelet or at least touch the heating battery before starting.
4. Do not bend the plumes and pull them – they are fragile!

How to disassemble Redmi 5A and replace the battery

Now, to the most critical stage, follow the instructions in strict order to avoid damaging your phone.

📌 Step 1: Removing the back cover

1. Heat the edge of the back cover with a hair dryer (temperature 60–70)°C, no higher!) for 1-2 minutes. This will soften the glue.
2. Insert a plastic spatula into the gap between the lid and the case (start with the lower left corner where the SIM card is located).
3. Carefully drive the shoulder blade around the perimeter, splitting the latches. Do not force - if the lid does not lend itself, warm up again.

📌 Step 2: Disconnect the battery plume

1. When you take the lid off, you'll see a battery pack with black film. Don't pull the film -- it's glued to the battery!
2. Unscrew 5 screws (marked with red circles in the photo below) with a cross screwdriver. They fix the metal plate covering the battery connector.
3. Tap the plate and gently disconnect the battery plume with a plastic spatula (not a nail!).

📌 Step 3: Remove the old battery

1. There are two strips of glue underneath the battery, and pick them up with tweezers and slowly pull them until the battery moves away from the body.
2. If the glue is too strong, drop the isopropyl alcohol under the battery - it will dissolve the adhesive layer.
3. Do not use force – if the battery is not removed, check if there are any unpatched areas left.

📌 Step 4: Installation of a new battery

1. Make sure that the new battery has a protective film (don’t remove it!).
2. Stick the battery to double-sided tape (comes with it) or use the original glue (sold separately).
3. Connect the plume to the connector on the motherboard. It should snap with a slight click.

📌 Step 5: Assembly of the phone

1. Put the metal plate in place and twist the screws (do not pull!).
2. Press the back cover, starting at the top (where the cameras are) and the latches should be in place with a characteristic click.
3. Turn on your phone and check the battery.

🔧 If the phone doesn't turn on after assembly:

• Check if the battery is tight.
• Make sure that no screws remain inside the body.
• Connect the charger – sometimes after the battery is replaced, an initial charge is required for 10-15 minutes.

Calibration of the battery after replacement

Even the original battery after installation can show an incorrect percentage of charge. 5A "You're used to an old battery. To fix this, calibrate it:

🔄 Method 1: Software calibration (via Recovery)

1. Turn off the phone.
2. Press the Power button + Volume up to enter Recovery Mode.
3. Choose Wipe & Reset → Wipe Battery Stats (if there is one).
4. Reset the device.

🔄 Method 2: Manual calibration (charging cycles)

1. Completely discharge the phone before automatically shutting down.
2. Charge to 100% without interruption (use the original RAM).
3. Turn off the charging and let the phone work for 2-3 hours.
4. Repeat the discharge / charging 2 more times.

⚠️

Warning: If the phone still turns off after calibration at 20 to 30 percent charge, the problem may be the power controller on the motherboard, in which case a diagnosis will be required at the service center.

📊 How to check the results?

• Install the AccuBattery app and check the actual capacity (should be close to 3000 mAh).
• Check the time of work: at an average load (social networks, messengers) Redmi 5A Must hold a charge for 8-10 hours.

💡

If the battery is getting warmer than normal after the battery is replaced, check to see if there are any old glue pieces left under the battery.

Common Mistakes and How to Avoid Them

Even experienced savvy tycoons sometimes make mistakes when replacing a battery, and here are the most common mistakes and ways to prevent them:

🔍 What to do if...

• 📵 Phone doesn't turn on after you've replaced it: Check the density of the battery plume. Connect the charger for 10 to 15 minutes -- sometimes you need a push. If it doesn't work, maybe the motherboard is damaged (diagnosis needed).
• 🔋 Battery not charging: Try another charger (original on the battery) 5V/2A). Check if the charging connector contacts are contaminated. If the problem persists, the power controller may fail.

⚠️

Warning: If you accidentally ripped off a touchscreen plume (a thin cable going to the screen) during the disassembly, don't try to stick it with tape! This will cause the display to fail, in which case you need to replace the service plume.

Should I contact the service center?

Replacement of battery in Xiaomi Redmi 5A — If you have experience in disassembling equipment (for example, laptops or other smartphones), you can do it yourself:

• 🛠️ You’ve never taken your smartphone apart and are afraid of damaging parts.
• 🔧 You do not have the necessary tools (dryer, plastic shoulder blades, isopropyl alcohol).
• 📱 Phone for warranty (self-repair cancels it).
• ⚡ Battery swollen and deformed the body – requires checking other components.

💰 How much does a replacement cost in the service?

• Official Xiaomi service: 1500-2500 ₽ (battery-powered).
• Informal workshops: 800-1500 ₽ (analogous).
• Self-driving: 300–2000 ₽ (battery).

🔹 The advantages of the service center:

• Work guarantee (usually 3-6 months).
• Diagnostics of other possible problems (e.g., power controller).
• Use of original spare parts.

🔹 Cons of the service center:

• High price (sometimes 2-3 times more expensive than a self-substitution).
• The risk of running into unscrupulous masters (the use of cheap analogues).
• Waiting time (from a few hours to a week).

💡

If you decide to change the battery yourself, the main thing is to take your time and follow the instructions Step-by-step. 80% of problems when replacing the battery arise from rushing or using inappropriate tools.

FAQ: Frequent questions about replacing the battery with Redmi 5A