How to replace the battery Xiaomi Redmi 5A: Detailed guide with photos and nuances

Xiaomi Redmi 5A

battery-wear

Replacing the battery with Redmi 5A — A task that you can do yourself if you take a responsible approach, and in this article you will find a step-by-step photo guide, tips for choosing a quality battery, a list of tools you need, and answers to frequent questions. We’ll also reveal hidden nuances that aren’t covered in standard manuals, such as how to calibrate a new battery correctly or what to do if the phone doesn’t turn on after a replacement.

If you’ve never taken down a smartphone, don’t worry: the design of Redmi 5A It's relatively simple, and the risk of damage to the board is minimal, and the key is to follow the instructions and take your time. To be clear, we'll break it down into steps, from preparation to final testing. FAQ-A block with solutions to typical problems that arise after a battery replacement.

1.Signs of battery wear on Xiaomi Redmi 5A

How to know if your Redmi battery is 5A There are some obvious and indirect signs that can help diagnose the problem before the device is dismantled.

The main symptoms:

• ⚡ Fast discharge: the phone loses its power 50% charge-by-charge 1-2 with minimal load (for example, in standby mode).
• 🔋 Inadequate percentage display: charge jumps (for example, with 40% straight away 15%), or the phone is turned off when 20-30% leftover.
• 🔌 Charging problems: The smartphone doesn’t charge to 100%, requires multiple cable connections, or heats up while charging.
• 💥 Bloating of the body: the back cover moves away from the screen, gaps or bulges appear (this is a critical sign - such a battery must be urgently replaced!).

If you see at least two of these symptoms, the probability of battery wear is 90%, and for accurate diagnosis, you can use applications like AccuBattery (reveals real capacity) or AIDA64 (For example, if the actual capacity has dropped below 1500 mAh (at the initial 3000 mAh), it is time to change the battery.

⚠️ Warning: If the battery is swollen, don't try to pierce it or bend it - it could cause fire! immediately disconnect the phone from charging and don't use it until the battery is replaced.

Interesting fact: even if you rarely use a smartphone, the battery degrades over time. 20% And the only way to do that is to sit on a shelf every year, so if you have your Redmi, 5A laying around 2-3 The battery will probably need to be replaced.

2 Which battery to choose for Redmi 5A: original vs analogue

The quality of the new battery not only affects the life of the phone, but also its safety. 5A:

1. Original (Xiaomi)

• ✅ Guaranteed quality and compatibility.
• ✅ Conformity of the declared capacity (3000 mAh).
• ❌ High price (from 1500 to 2500 rubles).
• ❌ Risk of getting faked (originals are sold only at official dealers).

2. Certified analogues (e.g. Patona, Baseus)

3. Cheap uncertified batteries (no-name)

• ✅ Price from 300 rubles.
• ❌ The actual capacity can be below 2000 mAh.
• ❌ High risk of bloating or overheating.

We recommend choosing between the original (if budget allows) and certified counterparts from proven brands.

• 🔹 Connector: Must match the original (Redmi) 5A It's a 3-pin latch connector).

Where to buy it?

• 🛒 Official stores: mi.com, Xiaomi Store in the Wildberries/ozone.
• 🛒 Verified marketplaces: AliExpress (shops with a rating of 98%+), Beru.
• 🛒 Local service centers: often sell quality analogues at wholesale prices.

⚠️ WARNING: If you buy a battery on AliExpress, pay attention to the reviews with photos! scammers often sell under the guise of batteries for Redmi 5A batteries from other models (e.g. Redmi) 4A), slimming.

3. Necessary tools for battery replacement

Replacement of the battery with Xiaomi Redmi 5A You'll need a minimum set of tools, most of which can be found in the household or bought at the nearest electronics store for 200 to 500 rubles.

Tool list:

• 🔧 Plastic spatula (suction pad) - for separation of the back cover.
• 🔧 Thin asterisk screwdriver (T3 or T4) — screw.
• 🔧 Plastic mediator or guitar mediator - for careful tweaking of plumes.
• 🔧 Tweezers - to extract plumes.
• 🔧 Thermoclei or bilateral scotch to fix the new battery.
• 🔧 Hair dryer (optional) - if the glue is too strong.
• 🔧 Alcohol wipes - for cleaning contacts.

If you don’t want to buy the tools separately, you can buy a ready-made remake for smartphones (costs about 500-800 rubles on AliExpress or Wildberries), which usually includes all the necessary screwdrivers, shoulder blades and even suction cups.

Important: Don't use metal blades or knives - they can damage plumes or the body! Plastic tools are safer, even if you have to put a little more effort.

4. Step-by-step instruction: how to disassemble Redmi 5A and replace the battery

Now, to the most critical stage, disassembling the phone and replacing the battery, follow the instructions carefully so that you do not damage the plumes or the board.

Step 1: Turning off and preparing the phone

• 📵 Turn off Redmi. 5A long-press.
• 🔋 If the phone doesn’t turn on, charge it to at least 10% – this will prevent short circuits when the battery is turned off.
• 📱 Remove the tray for SIM-cards (you can use a paper clip or a special key).

Step 2. Remove the back cover

• 🔥 Heat the back cover around the perimeter with a hair dryer (temperature 50–60)°C, no higher! That'll soften the glue.
• 🕳️ Insert a plastic blade into the gap between the lid and the case (start at the bottom corner where the charging connector is).
• 🔄 Carefully drive the shoulder blade around the perimeter, separating the lid. If it resists, heat up a little more.

Step 3: Battery shutdown

• ⚡ Once the lid is removed, first of all turn off the battery! To do this, put a plastic mediator in the battery plume (it is located at the top of the board, next to the camera).
• 🔌 Take the snails away from the snails, and then pull them up!).

⚠️ Warning: If you forget to turn off the battery and start unplugging the plumes, the risk of short circuit is 90%. This can knock out the board.

Step 4: Remove the old battery

• 🧴 Battery at Redmi 5A Stick it to the body, put it in a plastic spatula from any angle, and slowly pull it up.
• 🔥 If the glue is too strong, you can heat the battery a little with a hairdryer (no more than 40).°C!).
• 🚫 Do not use metal tools or pierce the battery – it is dangerous!

Step 5: Installation of a new battery

• 🧼 Clean the seat from glue residues with an alcohol napkin.
• 🔋 Check that the new battery connector matches the original.
• 📏 Make sure the battery is flat, without skewing, glue it to double-sided tape or heat-glue.

Step 6: Assembly of the phone

• 🔧 Make sure all plumes are connected (display, camera, power button).
• 🔩 Twisting all screws (do not tug over!).
• 📱 Press the back cover, starting with the charging connector, and snap it around the perimeter.

After assembly, don't turn on the phone right away -- let the glue grab hold (10-15 minutes) -- then check the performance.

1. whether the battery plume is connected to the end (sometimes it is not inserted completely).

2. are not the contacts closed on the board (look for foreign objects).

3. Are the plumes not confused (for example, the display plume and the touch screen).

If everything is fine but the phone is not responding, try pressing the power button for 20-30 seconds.-->

5. Calibration of the new battery: why it matters

Many users wonder why after replacing the Redmi battery 5A It shows an inadequate charge (e.g., jumps from 1% to 100% immediately) because the power controller and the new battery are not in alignment.

Step-by-step calibration:

1. Discharge the phone to 0% (until it turns off by itself).
2. Connect to charging and wait 100% (do not turn on your phone while charging!).
3. Turn off the charger and turn on the phone. If it's less than 100%, re-connect the charge to full charge.
4. Repeat the cycle 2-3 times – this will help the controller to “learn” how to display charge correctly.

You can also use calibration applications, like Battery Calibration (available on Google Play), which reset battery statistics, forcing the system to recalculate capacity.

Signs of successful calibration:

• ✅ Charge drops smoothly, no jumps.
• ✅ The phone is turned off only at 0-1% (not at 20%).
• ✅ The operating time corresponds to the declared capacity.

⚠️ Warning: If the phone still turns off after calibration with 30-40% charge, the problem may not be in the battery, but in the power controller on the board.

6.Typical battery replacement errors and how to avoid them

Even experienced users sometimes make mistakes that lead to a phone breakdown. TOP-5 The most common mistakes and ways to prevent them.

Mistake 1: Using the wrong tools

• 🔪 What happens: A metal screwdriver or knife damages plumes or body.
• 🛠️ How to avoid: Use only plastic shoulder blades and mediators.

Error 2: Undisconnected battery during disassembly

• ⚡ What happens: Short circuit when accidentally touching the board.
• 🔌 How to avoid: Turn off the battery first thing after removing the lid.

Error 3: Overheating of the battery with a hairdryer

• 🔥 What happens: The battery swells or ignites.
• 🌡️ How to avoid: Heat no more than 60°C and no longer than 30 seconds.

Error 4: Installation of a new battery incorrectly

• 🔋 What happens: The phone doesn't turn on or the battery goes down quickly.
• 📏 How to avoid: Check the polarity of the connector and the density of the fitting.

Mistake 5: Ignoring calibration

• 📉 What happens: The phone shows the wrong charge, quickly discharges.
• 🔄 How to avoid: Perform 2-3 full charge-discharge cycles.

If you've already made one of these mistakes, don't panic. In most cases, you can fix the situation. For example, if your phone doesn't turn on after you've changed the battery, try:

• 🔌 Connect to charge for 30 minutes (sometimes the controller needs time to recognize the new battery).
• 🔄 Press the power button + volume up for 10-15 seconds (resetting the power cache).
• 🔧 Check the connection of all the plumes.

7. Cost of battery replacement: the most vs service center

How much would you save if you replaced the battery yourself? Let's compare the costs and risks.

When should I contact the service?

• 🛠️ If you have never had a phone and are afraid of damaging your phone.
• 🔧 If after self-replacement there are problems (does not turn on, does not charge).
• 📱 If you need a diagnosis of the board (for example, if you suspect a malfunction of the power controller).

When can I handle it myself?

• 💪 If you are confident in your abilities and willing to take risks.
• 🔋 If you have the right tools and a quality battery.
• 📚 If you have carefully read the instructions and are ready to follow them Step-by-step.

The average savings for self-replacement are 1,500-2,500 rubles, but remember that if you damage the plume or the fee, repairs can cost more than the initial savings.

✅ You have experience in disassembling equipment (albeit minimal).

✅ You have a high-quality battery with a guarantee.

✅ You are ready to spend 1-2 hours without rushing.

If at least one item is not fulfilled, it is better to contact the service.-->

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