Xiaomi Redmi 5A
Redmi 5A
In this article, you will find step-by-step instructions with photos and videos, a list of tools you need, tips for choosing a quality battery and answers to frequent questions. We will also tell you how to avoid disassembly errors that can damage the plumes or motherboard. And if you have never disassembled a smartphone, don’t worry: the Redmi 5A is a device with medium disassembly complexity, and even a beginner can cope with accuracy.
Before you start, evaluate your level of training:
If you choose the option “Never disassembled smartphones”, carefully study the sections about tools and workplace preparation – this will help to avoid annoying mistakes.
1. Signs that the Redmi 5A battery needs to be replaced
It's not always a quick discharge that means the battery is out of order, sometimes it's software failures or application background activity, but there are some clear signs that indicate that the battery is wearing out.
- 🔋 The phone discharges in 2-3 hours with moderate use (social networks, instant messengers).
- 📉 The percentage of charge “jumps”: for example, from 50% immediately drops to 15%.
- 🔌 The device turns off when connected to charging or refuses to turn on without recharging.
- 🌡️ The battery swelled (seen on the raised back cover or screen glass).
- ⚡ Charging is extremely slow or stops at 80-90%.
If you see at least 2-3 of the features on the list, the probability of battery wear is close to 100%, and you can check the exact condition using applications like AccuBattery (showing real capacity) or through the engineering menu:
#4636## → Battery → Charge level and conditionIf the actual capacity is less than 2000 mAh (at a nominal 3000 mAh), it is time to change the battery.
⚠️ Attention: A billowing battery is dangerous! it can damage the screen, motherboard or even ignite.If the Redmi case 5A Deformed, do not try to charge the device - immediately start replacing.
2.What battery to choose for Xiaomi Redmi 5A?
The original Redmi 5A battery is BM47-marked and has a rated capacity of 3000 mAh. However, the market is full of fakes and low-quality analogues.
- 🔍 Marking: Must match the original (BM47 3.8V 3000mAh).
- 🏭 Manufacturers: Reliable Brands — ZOP Power, Camelion, Remax (but check reviews!).
- 📦 Package: the box must have contacts for soldering (if they are not - it is a fake).
- 💰 Price: the original battery costs 800-1500 ₽, Cheap options (300-500) ₽) often become married.
Where to buy? Best options:
- Xiaomi’s official service centers are a guarantee of the original, but the price is higher.
- Verified online stores (AliExpress with a seller rating of 98%+, Beru, Wildberries).
- Local repair shops – often sell quality analogues at wholesale prices.
| Type of battery | Capacity | Price (₽) | Pluses | Cons |
|---|---|---|---|---|
| Original (Xiaomi BM47) | 3,000 mAh | 1200–1500 | Compatibility guarantee, long service life | Expensive, hard to find. |
| Quality analogue (ZOP) | 3000–3200 mAh | 800–1200 | Good Price/Quality Relationship | It can last 20 to 30% less than the original. |
| Budgetary analogue (NoName) | 2800-3000 mAh | 400–700 | Low price | Risk of bloating, rapid degradation |
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Before buying, check the battery reviews for the photo package. Often sellers put a cheap Chinese counterpart in a box labeled Xiaomi. Pay attention to the weight: the original battery weighs ~45 g, fakes 30-35 g.
Battery replacement tools
To disassemble the Redmi 5A and replace the battery, you will need:
T3 (Torx) screwdriver for the rear cover |
Plastic mediator or guitar mediator for lid lashing |
Suction cup (optional, for screen removal, if required)|
Thin-end tweezers |
Dryer or thermo-air station (for softening glue)|
Isopropyl alcohol (90%+) clean-up|
New adhesive-based battery or double-sided scotch |
Thermoclee (optional, to fix a new battery)-->
Where to buy tools? Smartphone repair kits are sold on AliExpress (priced from 300) ₽), If you don't want to spend money, you can do with a minimum set: a screwdriver. T3 + Plastic card (instead of mediator).
Important: Do not use metal objects (knives, screwdrivers) to lash the lid - this can damage the plumes or scratches on the body. Also avoid overheating with a hairdryer: the maximum temperature for the Redmi 5A is 60-70 ° C.
Step-by-step instructions for replacing the battery
Before starting work, turn off the phone and remove it. SIM-Work on a clean, well-lit surface, and it's advisable to cover the table with a soft cloth so you don't scratch your smartphone.
Step 1: Removing the back cover
1. Roll the Redmi 5A upside down with the back panel.
2 Unscrew the two T3 screws at the bottom (near the charging connector).
3. Gently apply the lid to the plastic mediator, starting at the lower right corner, and move along the perimeter, separating the latches.
4. Lift the lid, it's connected to the fingerprint scanner plume. Don't pull too hard to pull the plume off!
What to do if the lid does not lend itself?
Step 2: Disconnect the battery plume
1. Under the lid, you'll see a battery pack with a black protective film. Take it off.
2 Unscrew the screws that fix the metal plate over the battery plume (usually 3-4 T3 screws).
3. Carefully slap the plume with a plastic spatula and unplug it from the motherboard.
Step 3: Remove the old battery
1. The battery is glued to the body. Pick it up around the corner and pull it up. If the glue is too strong, use isopropyl alcohol (drip under the battery and wait 1-2 minutes).
2 Remove the glue residue from the body with alcohol and a napkin.
3. Check the contacts on the motherboard - they should be clean, without oxidation.
Step 4: Installation of a new battery
1. Remove the protective film from the new battery and glue it to the place of the old one (use double-sided tape or thermal glue).
2. Connect the plume to the motherboard. Make sure the contacts match!
3. Secure the metal plate and twist the screws.
4. Put the fingerprint scanner plume back in place and snap the back cover.
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After the battery is replaced, be sure to calibrate (Section 6) and this will extend the life of the new battery by 20-30%!
5. Common Mistakes and How to Avoid Them
Even experienced users sometimes make mistakes when replacing the battery.
- 🔧 The damage to the fingerprint scanner plume occurs when you pull the lid hard. Solution: gently lift the lid, starting at the corner without the plume.
- 🔥 Overheating the battery with a hair dryer - can cause bloating or fire. Solution: heat for no longer than 30 seconds at minimum power.
- 🔌 Flawed plume connection - the phone won't turn on. Solution: Make sure the plume is snapped to the end (a slight click should be heard).
- 📱 Scratches on the body -- they come from metal tools. Solution: only use plastic mediators.
If the phone is not switched on after replacement:
- Check if the battery is properly connected.
- Make sure the contacts on the motherboard are not contaminated.
- Connect the charge for 10-15 minutes – sometimes the new battery is discharged “to zero”.
⚠️ Note: If you have replaced the Redmi battery 5A If you overheat or run out quickly, you probably bought a defective battery!
Calibration of the new battery
The new battery requires calibration to ensure that the charge controller correctly determines its capacity, and if you skip this step, you risk getting incorrect charge readings (for example, the phone will turn off at 20%).
How to calibrate:
- Full discharge: Use your phone before automatically turning off.
- Charging up to 100%: connect the original RAM and wait for a full charge (at least 3 hours).
- Repeat cycle: Re-discharge/charge another 2-3 times.
After calibration, check the actual capacity in AccuBattery – it should be close to 3000 mAh (permissible deviation: ±10%).
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To speed up calibration, turn off the background applications and reduce the brightness of the screen. This will help discharge the battery evenly.
7. Alternatives: Service center vs. self-replacement
If you're not sure about your own abilities, you can go to the service. How much will it cost?
| Service | Price (₽) | Time. | Pluses | Cons |
|---|---|---|---|---|
| Replacement of the battery in the official SC Xiaomi | 1500–2500 | 1-3 days | 6 months warranty, original parts | Expensive, long repairs. |
| Replacement in a local workshop | 800–1500 | 1-2 hours | Quickly, often use high-quality analogues | The risk of running into unscrupulous masters |
| Self-sustaining replacement | 400-1500 (battery cost) | 30-60 minutes | Saving money, experience in repair | Risk of damage to the phone |
The choice depends on your budget and confidence. 5A — If you're using your main phone, and you're afraid of breaking it, you should go to the service, but if you're using it as a spare phone or you're willing to take a risk, replacing it yourself can save you up to 1,500 dollars. ₽.