When is the time to change the battery to Redmi? 4X
Xiaomi Redmi 4X — One of the most popular budget smartphones of 2017, but even after 3-5 years of use, the battery begins to die.If your phone runs out in a couple of hours, turns off at 20-30% charge or overheats while charging, these are sure signs that the battery needs to be replaced.
Cost of replacing the battery on Redmi 4X In 2026, the range varies from 1,500 to 4,500 rubles depending on the repair site, the type of battery and the region, in this article, we will discuss where it is cheaper and safer to change, how to choose a quality battery, and what to do to make a new battery last longer. Why some services price is 2 times lower than the market (spoiler: it is not always good).
It is important to understand that Redmi 4X It has a non-removable battery, and it requires disassembling the case, and if you've never repaired your phones, you'd better trust the professionals to do it, but if you have straight hands and tools, you can save up to 70 percent of the cost by buying the battery yourself.
How much does it cost to replace the battery with a Redmi? 4X 2026
Replacement prices depend on three factors: type of service, battery quality and region, and the current prices for June 2026 (for Moscow, St. Petersburg and the regions).
| Type of service | Cost (₽) | What's in the price | Pros and cons |
|---|---|---|---|
| Official Xiaomi Service (Mi Service) | 3500–4500 | Original battery + job | ✅ Warranty 6-12 months❌ Expensive, long (3-7 days) |
| Authorized partners | 2500–3800 | Premium battery" + job | ✅ 3-6 months warranty❌ Possible non-original batteries |
| Local service centres | 1500–2500 | A medium-quality battery + job | ✅ Quickly (1–2 hours)❌ Risk of counterfeiting, no guarantee |
| Self-sustaining replacement | 800–1500 | Only the cost of the battery | ✅ Maximum savings❌ We need experience and tools. |
⚠️ Note: If you are offered a replacement for less than 1200 ₽ — This is a reason to be wary. You'll probably get a repackaged AliExpress battery (2,000-2500 mAh instead of the original 4100 mAh) or a used battery that lasts 3-6 months.
Prices in the regions can vary by 10-20% downward (for example, in cities with a million people cheaper than in the capitals).
- 🔋 Capacity of the installed battery (must be at least 4000 mAh).
- 🛠️ Work warranty and battery (minimum 3 months).
- ⏱️ Term of execution (in official services can take up to a week).
Where to change the battery: top-5 tested
The choice of service depends on your priorities: reliability, speed or price, and consider all the options from the safest to the riskiest.
1. Official Xiaomi service (Mi Service)
✅ Pros: original spare parts, 12 months warranty, diagnostics before repair.
❌ Cons: high price (from 4000) ₽), Long repair period (up to 7 days), not all cities have centers.
📌 How to find: check the list of official services on the Xiaomi website. Pay attention to reviews - some centers are slow.
2 Authorized partners (e.g., "Svyaznye Service", "TechnoDoctor")
✅ Pros: price is 20-30% lower than the official, warranty 6 months, faster (1-3 days).
❌ Cons: can install non-original batteries (but high-quality).
📌 Tip: before repair, ask to show the battery in the package - the original should be a hologram and serial number.
Local service centres
✅ Pros: low price (from 1500) ₽), quick repair (1-2 hours), often give a warranty of 1-3 months.
❌ Cons: High risk of counterfeiting, no quality control.
🔍 How to choose a reliable service:
- 📱 Check reviews on Yandex.Maps or Google Maps (pay attention to the latest, 2023-2026.).
- 💬 Ask local publics (Vkontakte, Telegram) – often there are “black lists” of unscrupulous masters.
- 📸 Ask for a photo of the battery before installation (the original has a marking) HB41 or HB42).
4. Self-substitution
If you have experience in electronics repair, you can save up to 70%.Battery for Redmi 4X It costs 800-1500. ₽ (depending on the quality).
🛒 Where to buy:
- 🌍 AliExpress is the cheapest (600–1000) ₽), But wait a long time (2-4 weeks) and the risk of counterfeiting is high.
- 🏬 Local parts stores are more expensive (1200-1500) ₽), You can check before buying.
- 🛒 Beru.ru / Ozone / Wildberries – average price (900–1300) ₽), There are reviews.
💡
Before buying a battery on AliExpress, check the seller's rating (should be ≥98%) and number of orders (from 100+). Pay attention to the photos of real buyers – often there are fakes.
5. Phone exchange through the Trade-In program
If you're Redmi. 4X In poor condition, sometimes it is more profitable to take it over Trade-In and buy it for a new smartphone. For example, in the Svyaznoy or M. Video, you can get 1000-2500 for an old phone. ₽ (conditionally).
📌 When it is profitable: if in addition to the battery there are other problems (broken screen, faulty charging connector).
How to replace the battery on your own Redmi 4X: step-by-step
⚠️ Warning: Disassembling your phone will void the warranty (if it is still valid) and may damage other components. If you have never repaired your smartphone, you should contact the service.
To replace you will need:
- 🔧 Plastic blade (to disconnect the battery).
- ⚙️ Screwdriver. T4 (hull-rotor).
- 🔥 Hair dryer or thermo-air station (for softening glue).
- 🧲 Suction (to take the screen off).
- 🔋 New battery (capacity 4000-4100 mAh).
Turn off the phone and remove it. SIM-map|Battery discharge to 20-30% (for safety)|Prepare the workplace (clean surface, good lighting)|Take a picture of the location of the screws before disassembling|Wear an antistatic bracelet (optional)-->
Step 1 Remove the back cover
Heat the edge of the body with a hair dryer (temperature 60–80)°C) for 2-3 minutes to soften the glue. Then gently tuck the plastic blade and remove the lid. Be careful - plumes pass under the lid!
Step 2: Spinning the screws
Unscrew all screws (about 10 of them) with a screwdriver T4. Tip: fold them in order of twisting or take pictures so as not to confuse them when assembling.
Step 3: Disconnect the plumes
Carefully disconnect the battery plumes, screens and buttons with a plastic shoulder blade. Don't pull the wires - they're fragile!
Step 4: Remove the old battery
There's a tape underneath the battery, and you can pull it slowly until the battery goes away, and if the glue is too strong, you can heat the battery with a hair dryer a little bit (no more than 60).°C!).
Step 5: Installation of a new battery
Place the new battery in place, plug in the plume and attach it with duct tape (usually included).
Step 6: Assembly of the phone
Put the phone back together. After you assemble it, turn it on and check:
- 🔋 Charging (connect the charger).
- 📶 Communications (check work) SIM-map).
- 🔊 Speakers and microphone.
What if the phone doesn’t turn on after replacement?
How to choose a quality battery for Redmi 4X: 5 Key Signs of Significance
Xiaomi’s parts market is flooded with fakes, and to avoid getting married, consider the following:
1. Battery capacity
The original Redmi capacity 4X — 4100 mAh Permissible deviation: ±If the seller offers a battery of 3,500-3800 mAh, it is a fake or used battery.
Marking and packaging
The original battery must be marked with:
- 🏷️ HB41 or HB42 (battery model for Redmi 4X).
- 📅 Date of production (not older than 1-2 years).
- 🔢 Serial number (painted, not printed).
The packaging should be whole, with a hologram and the Xiaomi logo.
3. Battery weight
The original battery weighs ~45 grams Counterfeiting is often easier (30-35 g) due to smaller capacity.
4.Price.
A battery that is too cheap (less than 700) ₽) — Average price of a quality battery: 900-1500 ₽.
5.Seller
Buy only from trusted sellers:
- 🛒 Official stores: Mi Store, Beru, Ozone (marked "Original").
- 🌍 AliExpress: Stores with rating ≥98% and number of orders ≥500.
- 🏬 Local shops: Ask for quality certificates.
💡
The most reliable way to test the battery is to measure its capacity with a multimeter or using the AccuBattery application (after 2-3 charging cycles).
Frequent battery replacement errors and how to avoid them
Even experienced users sometimes make mistakes that cause their phones to break down.
⚠️ Warning: If you damage the screen plume or buttons during disassembly, the phone may stop responding to touch or not turn on. ₽ (depending on the breakdown).
1. Use of metal tools
Never use a metal screwdriver to peel plastic parts, which causes circuits and scratches on the board. Use only plastic blades.
Battery overheating
If you heat the battery with a hairdryer above 80°C, it can swell or even ignite. Optimal temperature for softening the glue: 60-70°C.
3. Incorrect installation of duct tape
If the nueva battery is not glued well, it will "walk" inside the case, which can lead to a break in the plume. Use double-sided tape or special glue for the batteries.
4. Forgotten screws or plumes
After assembly, always check:
- 🔩 Whether all screws are twisted (extra screws can close the board).
- 📶 Are antenna plumes connected (otherwise there will be no network).
- 🔊 Is the speaker plume connected (otherwise there will be no sound).
5. Use of a non-original charger
After replacing the battery, some users find the phone is not charging, often because of a non-original charger (5V/2A).
How to prolong the life of a new battery: 7 rules
Even the original battery will last longer if you follow these guidelines:
- Avoid full discharge. Optimal charge range: 20-80%. Full discharge (0%) and overcharging (100%) reduce the life of the battery.
- Don't use your phone in the cold.°C battery capacity temporarily falls, and with prolonged exposure to cold - degrades.
- Charge with the original adapter. Cheap charges can deliver unstable voltages, which damages the battery.
- Do not play games while charging. This leads to overheating, which accelerates battery wear.
- Store your phone at 40-60% charge. If you don't use your phone for long periods (such as vacation time), discharge it to 50% and turn it off.
- Update the firmware. In new versions. MIUI Optimized energy consumption.
- Check the battery health. Use applications like AccuBattery or AIDA64, wear-and-tear.
📊 Average battery life:
- 🔋 Original (with proper operation): 2-3 years.
- 🔋 Quality neo-original: 1-2 years.
- 🔋 Cheap counterfeit: 3-6 months.