The price of the battery on Xiaomi Mi 9 in 2026: the original vs analogues, where it is more profitable to buy

Xiaomi Mi 9, released 2019 It's still a popular smartphone for performance-price users, but over time, even the most reliable battery loses capacity: the phone starts to run out in a few hours, turns off when you're in a state of emergency. 20-30% If you're facing these problems, it's time to think about replacing the battery.

In this article, we will learn how much the battery costs on Xiaomi Mi 9 in 2026, where to buy it (official services, marketplaces, Chinese stores), how to distinguish the original from a fake and what to look for when choosing. You will also learn how much it will cost to replace the battery in the service center and whether you can manage yourself. Gathered current prices, comparison tables and tips from experts to ensure that your Mi 9 lasts for several more years without problems with autonomy.

Original battery vs analogues: what is the difference and what to choose

The first question that arises when looking for a replacement: buy the original battery from Xiaomi or save on the analogue from third-party manufacturers? The difference is not only in price, but also in quality, life, and security for the smartphone.

Original battery (article) MBJ4055 or MBJ4056 For a wireless charging version, there are several key advantages:

🔋 Capacity 3300 mAh - exactly corresponds to factory parameters, without overestimated or understated values.
🛡️ Protection against overheating and overcharging – the built-in controller prevents bloating and fire.
⚡ Compatible with fast charging (Quick Charge 4)+ up to 27 W) without loss of performance.
📅 Guarantee 6-12 months (depending on the seller).

However, the original batteries cost more – from 2500 to 4000 rubles depending on the place of purchase. Analogues (for example, from Baseus, Remax, Patona or unnamed Chinese brands) can be found for 800-2000 rubles, but there are risks:

⚠️ The actual capacity may be lower than the declared capacity (for example, 2800 mAh instead of 3300 mAh).
⚠️ Lack of protection from overheating – the battery can swell through 3-6 months.
⚠️ Problems with fast charging (smartphone can limit current to 10-15 Watt).

⚠️ Attention: Cheap analogues are often sold under the guise of "original" with a Xiaomi sticker. Check the package for hologram, serial number and QR-authentication.

📊 Which battery would you prefer for Xiaomi Mi 9?

Original (expensive but more reliable)

Quality analogue (average price)

The cheapest (the main thing is to work)

I haven't decided yet.

Current battery prices for Xiaomi Mi 9 in 2026

Battery prices for the Mi 9 vary by type (original/analogue), purchase location and configuration (with or without replacement tools). Below is a comparison table with current offers for June 2026.

Type of battery	Place of purchase	Price (rupe)	Guarantee	Notes
Original (MBJ4055)	Official Xiaomi service	3800–4200	12 months	Includes replacement (work) ~1,000 rubles.)
Original (MBJ4055)	Wildberries, Ozon	2500–3200	6–12 months	Without installation, there may be forgeries.
Analogue (Baseus, Remax)	AliExpress, Pandao	1200–1800	3–6 months	Capacity 3000-3200 mAh
Analogue (no-name)	Local shops	800–1300	No guarantee.	High risk of bloating
Kit (battery) + tool)	AliExpress	1500–2200	6 months	Includes suction, mediator, glue

As can be seen from the table, the cheapest option is unnamed analogues for 800-1,300 rubles, but their purchase is fraught with risks. The optimal balance of price and quality is branded analogues (Baseus, Remax) for 1,200-1800 rubles or the original on marketplaces for 2,500-3200 rubles.

💡

Before buying, check the reviews of the seller! on Wildberries and Ozon, look for stores rated above 4.8 and sales numbers from 100+. On AliExpress, pay attention to the number of orders (from 500)+) Photos of real buyers.

Where to buy a battery for Xiaomi Mi 9: the pros and cons of each option

The choice of the place of purchase is as important as the choice of the battery itself, and let’s look at the main options, their advantages and pitfalls.

1. Official Xiaomi Service Center

Pros:

✅ 100% original battery with warranty.
✅ Professional Replacement (Risk of Damage Minimum).
✅ Checking the smartphone for other malfunctions.

Cons:

❌ The highest price (3800-4200 rubles with work).
❌ Quest for repairs (may take 3-7 days).

2 Marketplaces (Wildberries, Ozon, Yandex Market)

Pros:

✅ Prices are lower than in the service (2500-3200 rubles for the original).
✅ Quick delivery (1-3 days).
✅ The possibility of returning the goods within 14 days.

Cons:

❌ Risk of getting a fake (check the packaging and reviews!).
❌ Self-replacement requires skills.

3. AliExpress and other Chinese stores

Pros:

✅ The lowest prices (from 800 rubles for analogues).
✅ Wide selection (tool kits can be found).

Cons:

❌ Long delivery (2-4 weeks).
❌ High percentage of counterfeiting and marriage.
❌ Difficulties with returns.

4. Local shops and workshops

Pros:

✅ You can check the goods immediately.
✅ Sometimes they offer a gift installation".

Cons:

❌ Prices are often overpriced (original can cost 3,500).+ ruble.).
❌ No warranty for analog batteries.

⚠️ Note: When buying on marketplaces, pay attention to the photos of the packaging. Xiaomi's original battery should have: Hologram with the Mi logo on the box. Serial number matching the sticker on the battery. QR-authentication code (can be scanned through the Xiaomi Authenticity Check app).

Cost of battery replacement in service vs self-repair

If you decide to replace the battery with your own hands, the cost of work in the service will be from 800 to 1500 rubles, depending on the region and level of the workshop. In official service centers Xiaomi price is fixed - 1000 rubles per work (plus the cost of the battery).

Self-replacement is cheaper, but requires:

🔧 Tools: suction cup, plastic mediator, cross screwdriver, hair dryer (for softening glue).
🛠️ Skills: experience disassembling smartphones or at least watching a training video.
⏱️ Time: 1-2 hours for the first time.

Average cost of self-replacement (including the purchase of tools, if they are not):

Battery: 1200-3200 rubles.
Tools (one-time): 300-500 rubles.
Total: 1500-3700 rubles.

For comparison, the replacement in the service will cost 4800-5500 rubles. (original battery) + Thus, self-repair saves up to 2000-3000 rubles, but is suitable only for those who are confident in their abilities.

How to verify the authenticity of the battery before buying

The Xiaomi parts market is flooded with fakes, so be sure to check out a few key points before buying.

1. Packaging

The original Xiaomi Mi 9 battery comes in a white box with a hologram and the following elements:

📦 The Mi logo on the lid.
🔢 Serial number on the battery box and sticker (must match!).
📱 QR-authentication code (scanned through Xiaomi Authenticity Check app).

2. Appearance of the battery

The original battery must have:

🏷️ Sticker with serial number, date of production and article (MBJ4055 or MBJ4056).
🔋 Capacity marking: 3300 mAh / 3.85 V.
🛡️ Factory film on contacts (must not be damaged).

3. Checking through the annex

Download the official Xiaomi Authenticity Check app (available for Android) and scan QR-If the battery is original, the app will show you the green tick and manufacturer's name.

⚠️ Note: If the seller refuses to provide a photo of the package with the serial number or QR-code is a reason to doubt the authenticity of the product, and avoid batteries without stickers or with blurry labels.

What happens if you install a fake battery?

Fake batteries often do not have protection from overheating and overcharging, which can lead to: - Battery bloating (risk of damage to the screen and motherboard). - spontaneous disconnection of the smartphone at 30-50% charge. - Fire danger (in rare cases). In addition, cheap analogues quickly lose capacity - after 3-6 months, the autonomy of the smartphone will again fall.

Frequent battery replacement errors and how to avoid them

Even if you decide to change the battery yourself, it is worth knowing about the typical errors that can lead to a breakage of the smartphone.

1. Screen plume damage

When you remove the display, it's easy to touch the plume that connects the screen to the motherboard.

Use a plastic mediator, not a metal one.
Do not put excessive effort when undercoating the screen.

2. Incomplete glue disconnection

If the glue under the battery doesn't heat up enough, it's hard to remove without damage.

Use a dryer at medium power (do not overheat!).
Grab the battery slowly, adding heat a little.

3. Incorrect installation of the new battery

If the battery is set curved or not fixed with glue, it can shift and damage other components.

Check that the battery contacts fit tightly to the connector.
Use double-sided tape for fixation.

4. Forgot to calibrate the battery

After replacing the new battery, you need to calibrate, otherwise the smartphone will not display the charge level correctly.

Charge your phone to 100% and hold on charging for another 1 hour.
Turn off the charging and discharge until it is automatically turned off.
Repeat the cycle 2-3 times.

1. Correct connection of the battery plume.

2. the integrity of the contacts (possibly they have bent).

3. Charger (sometimes a "push" is required from a powerful power supply unit).-->

FAQ: Answers to Frequent Questions

Can you replace the battery with Xiaomi Mi 9 for a more capacious one?

It is technically possible to install a larger battery (e.g., 4,000 mAh), but this is fraught with problems: 🔋 The battery may not fit into the case or swell. ⚡ The charging controller is not designed for a large capacity - overheating is possible. 📱 Smartphones may not display the percentage of charge correctly. Recommendation: Better stay on the original capacity (3300 mAh) or choose a quality analogue with the same capacity.

How long will the new battery last?

The service life depends on the type of battery and operating conditions: 🔋 Original: 2-3 years (500-800 charge cycles). 🔋 Qualitative analogue: 1-2 years (300-500 cycles). 🔋 Cheap equivalent: 6-12 months (100-300 cycles) to extend the life of a battery: 🔌 Avoid a full discharge (keep the charge between 20% and 80%). 🌡️ Do not use your smartphone in extreme temperatures (below 0)°C or higher than 40°C). ⚡ Use an original or certified charger.

What if the smartphone does not turn on after replacing the battery?

Possible causes and solutions: Battery plume is not connected: Take your smartphone apart and check if the contacts are tight. Trail is damaged: Check it for breaks or contaminants. Replace it if necessary. Controller protection worked: Connect your smartphone to charge for 10-15 minutes, then try to turn on. Battery marriage: If nothing helps, try installing another (knowingly working) battery. If the problem is not solved, contact the service center - perhaps other components were damaged when you replace it.

Can I replace the battery under warranty?

If your Xiaomi Mi 9 is still warranty-worthy (unlikely for a 2019 model, but possible when buying a used one), then the battery replacement is covered by the warranty only in case of factory defect. If the battery is worn out during operation, repair will be paid. Exceptions: If the battery is swelled during the warranty period (usually 1 year), it will be replaced for free. If the smartphone was bought on credit or with an extended warranty, the conditions may differ (check with the seller).

Where to find the original battery article for Xiaomi Mi 9?

For Xiaomi Mi 9 there are two original articles: MBJ4055 — standard. MBJ4056 — Wireless charging version (for Mi 9 Transparent Edition) Please check the article before buying! If your smartphone doesn't support wireless charging, take it. MBJ4055.