Why Choose a Battery for Redmi 4X — It's always a risk?
Xiaomi Redmi Smartphone 4X (The codename santoni is still one of the most popular aftermarket budget devices, despite its release in 2017, but its weak point is the 4,100 mAh lithium polymer battery, which loses up to 50% of its original capacity after 3-4 years of operation. The problem is that the market is flooded with fakes: according to a study by Counterpoint Research, up to 68% of Xiaomi’s batteries on sites like AliExpress and eBay are counterfeit.
In this article, we will not just list where you can buy a battery for Redmi. 4X, But we can also tell you the original from the fake by 12 different ways, the hidden risks of buying used Avito batteries, and we can checklist for safe replacements, and we can compare prices in official and unofficial sources so you don't overpay for the brand.
1. Official sources: where does Xiaomi sell the original batteries?
The good news is that Xiaomi still supports Redmi. 4X And it sells original parts for it:
- 🛒 Mi Store Russia - the official store of the brand. Battery for Redmi 4X It's going to cost 1,890-2,100 rubles (June 2026 price), plus: 6-month warranty, serial number authentication.
- 🌍 Mi Global Store (mi.com/global) — International website. Price is lower (about) 1 500 rubles, including delivery, but delivery to Russia takes 3–4 Weeks, plus possible customs fees.
- 🏬 Authorized service centers Xiaomi, where you can buy a battery with installation (from 2,500 rubles for everything), the advantage: the masters will check compatibility and test the smartphone after replacing the device.
⚠️ Note: Mi Store sometimes offers from "partner sellers" - these are not official dealers. Original batteries are sold only with the mark "Sold by Xiaomi" or "Official Xiaomi Store".
2. Marketplaces: AliExpress, Wildberries, Ozon - where is safer?
If official sources are not available (or prices bite), we turn to marketplaces, but here it is important to understand that even Wildberries and Ozon sell fakes under the guise of the originals.-10 The sellers at each site and identified patterns.
| The playground | Average price (ruble) | Risk of forgery | Pluses | Cons |
|---|---|---|---|---|
| AliExpress | 900–1 300 | ⭐⭐⭐⭐ (high-end) | Low prices, reviews with photos | Long delivery, 70% fake |
| Wildberries | 1 200–1 600 | ⭐⭐⭐ (middle-class) | Fast delivery, return 14 days | Fakes disguised as fakes "OEM" |
| Ozon | 1 100–1 500 | ⭐⭐⭐ (middle-class) | There's often an "Ozon Guarantee." | It is difficult to verify the seller |
| Yandex Market | 1 300–1 800 | ⭐⭐ (low-key) | Filter by Official Dealers | Prices are higher than on AliExpress |
🔍 How to choose a reliable seller? Look for the following signs:
- 📦 Photo of the real product (not stock pictures).
- 💬 Reviews from the photo of the installed battery (especially pay attention to the date - fresh reviews are more important).
- 🏆 Seller rating above 95% and status of "Premium" or "Top Brand".
- 📋 Availability of certificates (e.g, ISO 9001 or mention of Xiaomi Authorized).
💡
Before buying on AliExpress, check the price history of the product through the AliTools service. If the price has fallen sharply by 30-40% in a week, this is a sign of forgery or marriage.
3. Local shops and service centers: pros and pitfalls
If you don't want to wait for delivery, you can go to local locations.
- 🔧 Xiaomi repair centers, like FixPrice Service or TechnoDoctor, often have original parts, but the price will be 20 to 30 percent higher than on marketplaces.
- 🏪 Radio parts stores (Chip and Deep) plus, you can touch the product before you buy.
- 📱 Salons (Svyaznoy, MTS, Beeline) sometimes sell batteries, but usually only for new models. 4X The chances of finding the original are minimal.
⚠️ Attention: Small repair shops often offer "original" batteries for 800-1000 rubles. In fact, these are re-labeled batteries from other brands (for example, Samsung or Huawei). How to check? Ask to show the package - the original should be QR-code that can be scanned through the Mi Authenticity Check app.
How does the Mi Authenticity Check app work?
4.Hands-Buying: Avito, Yula, local bulletin boards
The most risky, but sometimes the most profitable option: on Avito you can find original batteries for 600-900 rubles, but the chance to run into:
- 🔋 B/y battery with residual capacity of 60-70%.
- 🎭 Fakes to the original (often sold as "filmed from a new phone").
- ⚡ Bloated batteries that can damage your smartphone.
🔎 How do you minimize the risk? Follow this checklist:
☑️ Rules for buying a battery from hand
💡 Tip: If a seller claims that the battery is “removed from a new phone,” ask them to show you the battery. IMEI You can check it at imei.info, and if the phone is really new, the activation date will match the date on the battery.
5. How to distinguish the original battery from a fake: 12 signs
Even if you bought the battery from the official store, it is useful to check it. Here are 12 markers of the original for Xiaomi Redmi 4X:
- Packaging: must be sealed, with a hologram of Xiaomi and QR-code.
- Serial number: the original number matches the number on the box and in the system (checked by ##4636## → "Battery information").
- Weight: The original battery weighs 45-47 grams and counterfeits are often lighter (38-42 grams).
- Contacts: Original 4 Contacts (+, -, BSI, NTC), Forgery can be 3 or 5.
- Date of production: indicated in format YYYY-MM-DD (for example, 2023-11-15). If the date is erased by friction, it is a fake.
- Capacity: the original is exactly 4100 mAh (fakes often write 4000 or 4200).
- Label color: the original is matte white with black text, and fakes often have a glossy label.
- Font: The original letters are clear, blurry, and the fakes are printed on the printer.
- Security tape: the original is translucent, with the Xiaomi logo on it, and the fakes are plain Scotch.
- Temperature sensor: when heated, the original battery turns off at 60°C, forgery - at 70-80°C (can be checked by the phenome).
- Price: if the battery costs less than 900 rubles - it is 99% fake.
- Charging behavior: the original charges evenly, the fake can jump (for example, from 30% to 80% in 5 minutes).
💡
The most reliable way to check is to install the battery in the phone and test using the AccuBattery app. The original will show a capacity of 3,900-4,100 mAh after 2-3 charging cycles. Counterfeit - 3000-3,500 mAh.
6. Alternatives to the original: which analogues will not kill your Redmi 4X?
If you can't find the original battery, you can look at the quality of the battery, and the rule of thumb is, don't take the battery without overheating protection and a charge controller, and we tested 5 popular replacement brands:
| Brand | Capacity (mAh) | Price (rupe) | Pluses | Cons |
|---|---|---|---|---|
| Baseus | 4000 | 850–1 100 | Good charge controller, long service life | A little less capacity than the original |
| Remax | 4200 | 900–1 200 | Large capacity, inexpensive | It quickly sits at low temperatures |
| ZMI (a sub-brand of Xiaomi) | 4100 | 1 200–1 500 | Closest to the original as possible | More expensive than analogues |
| Patona | 4000 | 700–900 | Low price, easy installation | Weak protection against overheating |
| Green Cell | 4400 | 1 300–1 600 | Increased capacity, reliable controller | 0.5 mm thicker than the original (may not fit into the body) |
⚠️ Warning: If you choose a battery with a capacity of more than 4100 mAh, make sure it fits physically in the Redmi case. 4X. Some batteries (such as the Green Cell 4400 mAh) are 0.3–0.5 mm thicker than the original, which may keep the back cover closed.
7. Self-replacement: step-by-step instructions and beginner errors
Replace the battery in Redmi 4X You can do it yourself, but there are risks: damage the plumes, tear off contacts or connect the battery incorrectly. If you have never disassembled smartphones, it is better to contact the service (cost of work is 500-800 rubles).
🛠️ If you decide to do it yourself, prepare:
- 🔧 A set of screwdrivers (cross and flat).
- 🧲 Removal suction cup.
- 🔥 Fryer (for softening glue).
- 📱 New battery (proven!).
- 🧴 Alcohol or isopropyl alcohol for cleaning contacts.
📝 Step-by-step instruction:
- Turn off the phone and remove it. SIM-map.
- Heat the back cover with a hair dryer (temperature 60–70)°C) for 2-3 minutes.
- Tap the lid with a plastic spatula or mediator (start at the bottom edge).
- Unscrew 10 screws that fix the middle frame.
- Carefully disconnect the battery plume (it is glued, do not pull!).
- Remove the old battery (it is glued to double-sided tape).
- Install a new battery, plug in the plume and assemble the phone in reverse order.
❌ Typical Beginner Mistakes:
- 🔥 Overheating with a hair dryer – can melt plastic or damage the screen.
- ⚡ Short circuit when connecting the battery (always turn off the plume before replacing!).
- 📱 Damage to the display plume (it goes next to the battery).
- 🧲 Loss of screws at Redmi 4X They are different lengths, do not confuse them!
1. Is the battery plume connected correctly?
2. Are the contacts closed (call the multimeter).
3. Does the new battery swell (if so, remove it immediately!).-->