Replacement of the battery on Xiaomi Redmi 5 Plus: a complete guide with photos and videos

Xiaomi Redmi 5 Plus (codename Vince) is a popular smartphone 2018 But over time, even the most reliable batteries lose capacity, and the phone starts to run out quickly, and it turns off when you're in the process. 20-30% charge or not hold the charge for more than an hour. 5 Plus began to "die" through 2-3 After a few hours of battery replacement, it’s time to replace the battery.

In this article, you will find detailed instructions on how to replace the battery with Xiaomi Redmi 5 Plus, including choosing an original or quality alternative battery, the necessary tools, Step-by-step disassembly and assembly of the device. We will also tell you how to check the new battery after installation and avoid typical errors that can lead to damage to the smartphone.

Important: the procedure requires precision and basic electronics skills, and if you've never taken a smartphone apart, you'd better go to a service center, but if you're willing to try it yourself, follow our guidelines and you'll succeed!

1. Signs that it is time to change the battery

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

• 🔋 The phone's running out of power. 1-2 hours in normal use (social networks, instant messengers).
• 📉 The percentage of charge “jumps”: for example, from 40% immediately drops to 15% after a reboot.
• 🔌 The smartphone is turned off when 20-30% charge and only activated after connection to charging.
• ⚡ The battery heats up strongly during charging or use.
• 🕒 The Autonomous Work Time has been reduced in 2-3 compared to the new device.

If at least 2-3 You know the items on the list, you probably know the battery is worn out, and you can use apps like AccuBattery (available on Google Play) to accurately diagnose them, and it will show the actual capacity of the battery and how much it wears out, like if the original capacity of the Redmi is actually the same. 5 Plus — 4000 mAh, and the app shows 2500 The battery is definitely time to change.

⚠️ Warning: If the phone suddenly shuts down at 50% charge and no longer turns on even from charging, it can be a sign of battery bloating. In this case, immediately disconnect the device from power and do not use it until the battery is replaced! It can damage the screen or even ignite.

It's also worth checking if the problem is software-based.

1. Reset the settings to factory (Settings) → Additionally. → Recovery and discharge → Resetting settings).
2. Update the firmware to the latest version of MIUI.
3. Try charging your phone with another cable and power supply.

If after these manipulations the problem remains – the battery is to blame.

2.What battery to choose for Redmi 5 Plus?

The original battery for Xiaomi Redmi 5 Plus has a marking BM47 And it's 4,000 mAh, but there's a lot of fakes and low-quality products on the market that can last six months:

Where to buy it?

• 🛒 Xiaomi’s official service centers are a guarantee of the original, but the price is higher.
• 🌍 AliExpress – look for sellers with a rating above 98% and reviews in the photo (example: Xiaomi Mall Store or Xiaomi Mall Store). MI Global Store).
• 🏬 Local parts stores – ask for a quality certificate and check the battery on site (check contacts, weight, packaging).

⚠️ Warning: Batteries with a capacity of 5000 mAh and above for the Redmi 5 Plus is a scam! at best, the real capacity will be 3000-3500 mAh, at worst – the battery will quickly fail or damage the smartphone’s power controller.

Recommended analogue manufacturers:

• ZOP Power – reliable batteries with real capacity close to the original.
• Baseus – quality batteries with good reviews.
• Remax is a budget option, but check reviews before buying.

3. Battery replacement tools

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

• 🔧 Plastic blades (mediators) - for careful liding and disconnection of plumes.
• 🔨 The screwdriver (PH00 or PH0) — screw-off.
• 🔥 Dryer or thermo-air station - to soften the glue under the battery.
• 🧲 Magnetic mat or container – so as not to lose screws.
• 🩹 Alcohol wipes or isopropyl alcohol - for cleaning contacts.
• 🔋 New battery – authenticated.
• 📱 Suction (optional) - will help to lift the cover.

It is also recommended to use an antistatic bracelet or periodically touch a grounded metal object to avoid static discharge that can damage the motherboard.

If you don't have a hair dryer, you can use hot air from a household hair dryer, but be careful: don't direct the flow too close to plastic parts so as not to melt them. The optimal temperature is 60-80°C.

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Before disassembly, take a picture of the location of all screws and plumes on the phone - this will help to properly collect it back.

4. Step-by-step instructions for replacing the battery

Now, to the process itself, follow the instructions carefully so that you don't damage your smartphone.

Step 1: Turn off and prepare the phone

Before the disassembly:

1. Turn off Redmi 5 Plus (squeeze power) + Volume up 10 seconds if the phone doesn't respond).
2. Extract. SIM-card and memory card (if any).
3. Place the phone on a flat surface with the screen down.

Step 2: Removal of the back cover

The Redmi 5 Plus cover is glued, so it needs to be carefully tucked in:

1. Heat the edge of the cover with a hair dryer (especially near the charging connector) for 1-2 minutes.
2. Insert a plastic blade into the gap between the lid and the body and carefully guide it around the perimeter.
3. As soon as the lid begins to move away, do not pull it sharply - plumes pass under it!

After removing the cover, you will see:

• Battery (stick to the body).
• Fingerprint scanner (if you have one in your model)
• Screws that attach the motherboard.

Step 3: Battery disconnection

Before removing the battery, be sure to disconnect it from the charge:

1. Find the battery plume (usually black, with red and black wires).
2. Carefully slap the connector with a plastic spatula and disconnect it.
3. Check with a multimeter that there is no voltage on the contacts of the battery (should be 0 V).

Now we can start removing the battery itself, and it's glued to a double-sided tape that needs to be softened.

1. Heat the battery with a hairdryer (do not overheat - maximum 80)°C!).
2. Tap the battery with a plastic spatula from either edge and slowly pull up.
3. If the battery fails, heat it up again and try again.

⚠️ Warning: Do not use metal tools to tamper with the battery, they can puncture it, which will lead to fire or explosion.

Step 4: Installation of a new battery

Before installing the new battery:

1. Clean the place under the battery from the residues of glue with alcohol.
2. Make sure that the new battery contacts are free of dust or grease.
3. Stick bilateral tape (comes with battery) or use the original glue.

Set the battery and plug it into the circuit board, make sure the connector sits tight, or the phone won't charge.

Step 5: Assembly of the phone

Collect the phone in reverse order:

1. Put all the plumes in their places.
2. Fix the cover, starting from the place near the charging connector.
3. Carefully press the lid around the perimeter so that it sits tightly.
4. So, turn all the stains (not to be worn).

5 First on and calibration of the new battery

After you change the battery, don't turn the phone on right away! Give the battery a 10-15-minute rest to keep the glue tight and the contacts stabilized.

1. Connect your phone to the original charger.
2. Charge it to 100% without interruption.
3. Turn it off and use it until it is fully discharged (before it is turned off).
4. Repeat the charging-discharge cycle 2-3 times – this will help the power controller to get used to the new battery.

We also recommend:

• 📱 Calibrate the battery via the engineering menu: Enter dial ##4636##. Select Battery Information. See the actual charge level (should match the displayed charge level).

🔄 Update the firmware to the latest version MIUI (Sometimes older versions misrepresent charge).

AccuBattery

If the phone is not switched on after replacement:

• Check if the battery is tight.
• Make sure the battery is not swelling (if so, replace it immediately!).
• Connect your phone to charge for 30 minutes – sometimes the new battery is discharged to zero.

6. Common mistakes and how to avoid them

Even experienced technicians sometimes make mistakes when replacing batteries, and here are the most common ones and ways to prevent them:

Another common problem is that the phone doesn't hold its charge after the battery is replaced, and the reasons may be:

• 🔌 Non-original battery – check the capacity through AccuBattery.
• 🔧 Bad plume contact - take the phone apart and check the connector.
• 📉 Worn-out power controller – requires replacement at a service center.
• 🤖 Software failure - make a reset settings.

If the battery runs out in a few hours after the replacement, and AccuBattery shows a real capacity of less than 3,500 mAh, you probably sold a fake battery, in which case it is better to return the battery to the seller and order the original one.

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If after replacing the battery, the phone overheats or discharges quickly, immediately turn it off and check that the plume is connected correctly.

7.Alternative methods: replacement of the battery in the service center

If you're not sure about your abilities or you're afraid of damaging your phone, you should go to the service center. How much will it cost?

When choosing a service, pay attention to:

• 📄 Availability of a guarantee (minimum 3 months for work and spare parts).
• 🔍 Reviews on the Internet (check Yandex.Maps, 2GIS, Google Maps).
• 💬 Honesty of masters – good service will show the old battery and explain the cause of the malfunction.

If the phone is important to the job and you're not willing to take risks, yes. If the Redmi 5 Plus is used as a spare, you can save money and replace the battery yourself.

8. Frequently Asked Questions (FAQ)