How to remove the battery from Xiaomi Redmi 5: instructions with photos and warnings

The battery in a smartphone is one of the most vulnerable components, especially after 2-3 years of use. Xiaomi Redmi 5, released in 2017, was no exception: many users face battery bloating, rapid discharge or need to replace. However, self-removal of the battery is not an easy task. Unlike older phones with removable covers, here you will have to disassemble the case, risking damage to the plumes or display.

This article will help avoid the typical mistakes, from tool selection to fixing a new battery. We will discuss three methods of extraction (with heated, without it and for "glued" batteries), point out the hidden risks (for example, damage to antenna contacts), and give a checklist to check the health after replacement. If you have never disassembled smartphones, no problem: the manual is adapted for beginners, with photos of each step.

⚠️ Critical warning: Xiaomi Redmi 5 has a lithium battery with overheating protection, but if mechanically damaged, it can ignite.Do not use metal tools to tamper with the battery - only plastic blades or mediators. If the battery is swollen (the phone body is "spun"), immediately take the device to the service center!

V 90% In some cases, self-replacement is cheaper than service, but requires care. 800 before 1500 The new battery for Redmi 5 buy-in 500-700 But the savings are only justified if you follow safety precautions.

1.Preparation: Tools and precautions

Before you start disassembling, make sure you have everything you need. The minimum set of tools includes:

• 🔧 Plastic blades (or mediators) - for separation of the body and undermining of the battery.
• 🔥 Hair dryer or thermo-air station - for softening the glue (temperature not higher than 60)°C!).
• ⚡ Scotch or tape - to fix the plumes and not lose the screws.
• 🔩 Screwdriver cross (PH00) — for the Redmi 5 hull screws.
• 🧤 Gloves - protection from possible microcuts on the body.

⚠️ Warning: Never use a knife or screwdriver to smack the battery! Lithium batteries are sensitive to punctures - this can short circuit or even fire. If you don't have plastic blades, you can replace them with a guitar transmitter or a credit card (but not a metal one!).

Also prepare the workplace:

• 📱 Place your phone on a soft surface (like a towel) to avoid scratching the screen.
• 🔋 Turn off your phone and wait until it’s completely discharged (this will reduce the risk of sparking when the battery is disconnected).
• 📸 Take a picture of the location of screws and plumes – this will help with reverse assembly.

2. disassembly of the Xiaomi Redmi 5 body: Step-by-step

The Redmi 5 case is mounted on latches and screws, and the challenge is not to damage the flexible plumes that connect the buttons and display to the motherboard.

Step 1 Remove the back cover

1. Turn off the phone and remove the tray for SIM-cards (use a paper clip or special key).
2. Heat the edge of the body with a hair dryer around the perimeter for 1-2 minutes (temperature to 60 ° C).
3. Insert a plastic blade into the gap between the case and the screen (start at the lower right corner where the power button is located).
4. Carefully drive the blade along the body, snapping the clamps. Do not force - if the lid does not respond, warm up the problem area again.

Step 2. Disconnect the plumes

• After removing the lid, you will see a battery closed with black film, and a motherboard with several plumes.
• First, disconnect the battery connector (which is on the right of the battery, under the metal plate) and use a plastic blade to gently lift the connector.
• Then turn off the display plumes (at the top of the board) and the volume/power buttons (at the bottom).

Is the phone off-charging?|Is the back cover removed?|Is the battery connector disconnected?|Whether the plumes are taped?|Are the tools ready to decorate the battery?-->

⚠️ Note: There are small boards on the Redmi 5 SMD-components (resistors, capacitors) If you accidentally hit them with a metal tool, it can knock the phone out of order!

3. Battery extraction: 3 methods (with photo)

The battery in Xiaomi Redmi 5 is glued to the body with double-sided tape, and to remove it, you can use one of three ways:

Method 1. Heated (recommended)

• 🔥 Warm up the phone body with a hair dryer (temperature) 50-60°C) during 3-5 It'll soften the glue.
• 🪛 Put a plastic blade around the battery from any angle, and put a thin plastic card (like a bank card) under it to keep the battery from getting stuck".
• ⚖️ Pull the card carefully, evenly separating the battery!

Method 2. without heating (for the patient)

• 🧊 If the hair dryer is not present, isopropyl alcohol may be used (90%+). Apply a few drops on the edges of the battery - it will dissolve the glue.
• ⏳ Wait. 5-10 minutes, then gently slap the battery with a spatula.
• ⚠️ Alcohol can damage rubber camera seals - don't overdo it with the amount!

Method 3: For "glued" batteries (risky)

• 🔨 If the battery fails, it can be gently cut at the edges with a sharp knife (plastic only!) and cut depth is no more than 1 mm!
• 🩹 After extraction, check the case for the presence of glue residues - they must be removed with alcohol.

📌 Tip: If the battery is swelling, don't try to flatten it, it can cause the inner layers to rupture and leak the electrolyte, in which case it's better to replace the battery with a new one right away.

4. Checking of new battery and reverse assembly

Once you have removed the old battery, check it for bloating, corrosion or damage. If the battery is swelling, you can't throw it into the trash, take it to the electronics recycling center.

Installation of a new battery:

1. Compare the new battery with the old one – they should match the capacity (standard for Redmi 5 – 3300 mAh) and connector.
2. Apply a thin layer of bilateral tape to the case (or use the glue that comes with the battery).
3. Press the battery to the body and connect the connector to the motherboard.

Checking of operability:

• 🔌 Connect your phone to charging and make sure it correctly determines the charge level (no jumps).
• 📱 Turn on your phone and check the sensor, camera and buttons – they should work without crashes.
• 🔋 Run the battery test via the engineering menu (code ##4636##) or the AccuBattery app.

⚠️ Note: If the phone does not turn on after replacement, check:

• Is the battery connector plugged in before the click.
• Have you damaged the power plume (it goes from battery to board).
• Are the contacts closed on the board (look under the magnifying glass).

💡

Before final assembly, wipe the body and screen with a lilaless napkin - this will remove fingerprints and dust that could have gotten inside during the dismantling.

5. 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:

📌 Key takeaway: Most battery replacement problems are caused by rushing, spending 20% more time on each step than you think is necessary to reduce your risk of error.

If the phone is quickly discharged after replacement, check:

• 🔌 The quality of the contact of the battery connector (it may not be fully inserted).
• 📉 The state of the new battery (failed batteries are found even at trusted sellers).
• 🔄 Power saving settings (sometimes resetting to factory settings helps).

6.Where to buy a quality battery for Xiaomi Redmi 5

You can buy a new battery in a number of places, but it's important to choose an original or certified battery.

• 🛒 Xiaomi’s official service centers are the highest price (1000-1500 rub.), but a guarantee 6-12 months.
• 🌍 AliExpress is cheaper (400-700 - but risk forgery. - Look for sellers with higher ratings 98% and photo reviews.
• 🏬 Local spare parts stores (for example, "Svyaznoy", "MTS") - the average price (600-900 You can check the battery before buying.
• 🔧 Radio parts markets are the cheapest option (300-500 It's good if you're confident in your diagnostic skills.

🔍 How to distinguish the original battery:

• The case should have a hologram of Xiaomi and a serial number.
• Capacity - exactly 3300 mAh (forgeries often write 3,500 or 4000 mAh).
• Weight is about 45-50 grams (fakes are usually lighter).
• Contacts should be golden in color, without traces of oxidation.

⚠️ Note: If you buy a battery on AliExpress, pay attention to the description. Sometimes sellers indicate that the battery is "compatible" with the Redmi 5, but it is actually from another model (for example, the Redmi). 5A). Always check the article:

• The original article for Redmi 5 is MBJ404750 or BTB404745.
• Similars: HLD5024 (from Huawei, but fits in size).

7. Alternatives to replacement: when can you do without it

It's not always the only way to replace the battery. If you're having a problem with fast discharge, try these methods:

• 🔄 Battery calibration: Completely discharge the phone before shutting down. Charge before 100% without interruption (use the original adapter). 2-3 once.

Background activity shutdown

• Go to Settings → Battery → Optimization.
• Turn off auto-start for unnecessary applications.

Reset to factory settings

Settings → Additional → Recovery and Reset → Resetting settings

📊 If after calibration, the battery capacity in AccuBattery shows less 60% from the original (less than) 2000 mAh, then replacement is inevitable. Otherwise, you can extend the life of the battery by another 3-6 months.

💡

Always try software recovery methods before replacing your battery, and in 30% of cases, the problem is solved by calibrating or resetting the settings.

FAQ: Frequent questions about replacing the Xiaomi Redmi battery 5