Why itβs important to choose the original battery for Xiaomi Mi 9T Pro?
The battery is the βheartβ of the smartphone, which depends not only on battery life, but also on the security of the device. 9T Pro (also known as Redmi) K20 Pro in some regions) equipped with a battery capacity 4000 mAh with support for fast charging 27W. Over time, even the original battery loses its value. 30-40% capacity 2-3 year of active use, and the owner faces the question of replacement.
But here lies the main danger: the market is full of cheap counterfeits that will not only serve in the future. 2-3 It's less than that, but it can swell, overheat or damage the motherboard. 68% The problems with battery replacement are related to the use of non-original batteries. In this article, we will analyze where to buy a real original battery for Mi. 9T Pro, how to distinguish it from a fake and what to look for when buying.
Xiaomi does not sell batteries separately from smartphones through official channels (with rare exceptions), but there are proven ways to purchase original parts β more on that.
Xiaomi Official Channels: Where to Find the Original?
While Xiaomi doesnβt sell batteries as a separate product, there are a few legal ways to get the original battery:
- π¦ Official service center. When you replace the battery through an authorized SCC (list on the Xiaomi website), you will be given the original spare part. + battery 3 500β5 000 β½ (on 2026 The disadvantage is the high price and the need to leave the phone on. 1-2 day-day.
- π§ Exchange program: In some countries (e.g. India and China), Xiaomi periodically offers discounted battery replacements. MIUI Russia.
- π Mi Store (offline stores) In rare cases, Xiaomi stores may have original batteries β usually customized.
β οΈ Note: If you are offered to buy the "original" battery Mi 9T Pro on AliExpress or Wildberries for under 2,000 β½, The official battery in retail can't cost less than 2,500 to 3,000. β½ (2026).
2.Tested online stores with original batteries
If you don't want to overpay for service center services, you can try to find the original battery in specialty stores. It's important to choose sellers with a warranty for the product and positive reviews.-5 checked sites (on 2026 year):
| Shop | Average price (β½) | Guarantee | Pluses | Cons |
|---|---|---|---|---|
| 4PDA Market | 2 800β3 500 | 14-30 days | Verified sellers, feedback from the community | Long delivery (1-3 weeks) |
| eBay (sellers rated 98%+) | 3 000β4 000 | 30-60 days | Wide choice, the possibility of returning the goods | High Commission, Risk of Customs Delays |
| AliExpress (Mi Global Store or Xiaomi Official Flagship Store only) | 2 500β3 200 | 15 days | Low prices, sometimes the originals are found | Lots of fakes, long delivery |
| Beru (Wildberries) | 2 700β3 800 | 14 days | Quick delivery, payment upon receipt | Little vetted vendors |
| Ozon (stores with a rating of 4.8)+) | 2 900β4 000 | 7-30 days | Convenient returns, stocks | High chance of getting a replica. |
π How do you choose a reliable seller? Pay attention to the:
- β Store rating (not lower) 4.7/5).
- π Number of sales (from 100)+ month-on-month).
- π¬ Reviews from photo/video unpacking (look for mentions of Xiaomi hologram and serial number).
- π Presence of a check or warranty card.
π‘
Before you buy, ask the seller to send you a photo of the battery with the serial number and hologram. 9T Pro has a marking. BM4E or BM4F (party-dependent).
3. Local service centers and workshops: pros and risks
Many repair shops offer a replacement battery with a "guarantee" but there are nuances:
- β Pluses: π§ Quick replacement (1β2 hours). π° Often cheaper than in the official SC. π± The ability to check the battery immediately.
- β Risks: π΅οΈββοΈ 80% of workshops install non-original batteries (even if they say otherwise). π Counterfeit products often have a capacity of 3000-3500 mAh instead of the declared 4000. π₯ Unqualified replacement can damage the plume or power controller.
β οΈ Note: If the workshop offers to replace the battery Mi 9T Pro for 1,500-2,000 β½ β It's a sure sign of a fake. + The job is not cheaper than 3,000 β½.
π How to check the workshop?
- Ask what battery will be installed (it should be original) BM4E/BM4F or certified equivalent of ATL sunwoda).
- Ask to show the battery before installation (the original has a hologram of Xiaomi and the original). QR-code).
- Check whether you give a guarantee for work and battery (at least 3 months).
βοΈ What to check before replacing the battery in the workshop
How to distinguish the original battery from a fake: 9 key signs
Even if the seller claims that the battery is 100% original, you need to check it out. Here are 9 differences to look out for:
- The original battery comes in a white box with the Xiaomi logo, hologram and QR-Counterfeit products are often sold in plastic bags or boxes without markings.
- The serial number. The original has a unique one. SN, You can check it out on Xiaomiβs website (although not all models support such a check).
- Hologram: The hologram sticker should change color when tilted. Fakes often have a blurred or misplaced hologram.
- The original has a clear seal with the indication: π Models: Mi 9T Pro / Redmi K20 Pro. π Capacity: 4000mAh 3.85V. π Manufacturer: ATL Sunwoda (these are official suppliers for Xiaomi).
Weight.
~45-50 grams
Contacts.
golden
Shoe.
flexible and durable
Price.
2 500 β½
Checking through the app.
AccuBattery
AIDA64
3800-4,000 mAh
2500-3500 mAh
π Additional test: Connect the charger 27W And you can see the charging speed. The original battery charges up to 50 percent in 30 minutes, the fake battery takes a lot longer.
What do you do if you buy a fake?
5. Alternatives: Certified analogues
If you can't find the original battery, you can look at certified analogues from proven manufacturers. They're not inferior in quality, but they're cheaper. 9T Pro:
- π ATL (Amperex Technology Limited β Official Supplier for Xiaomi.Batteries are labeled as ATL BM4E And they have a capacity of 4000 mAh. Price: 2 200-2 800 β½.
- π Sunwoda is another supplier for Xiaomi. Label: Sunwoda BM4F. Price: 2,000-2,500 β½.
- π ZOP Power is a Chinese manufacturer that supplies batteries for many brands. Capacity: 3900 mAh Price: 1,800-2,200 β½.
β οΈ Please note: Buy analogues only from official distributors (for example, on the Internet). 4PDA Market or certified stores: Avoid no-name batteries - they can damage your phone.
π Advice: After installing the analogue, calibrate the battery:
- Discharge the phone to 0% and turn it off.
- Charge to 100% without interruption.
- Repeat the cycle 2-3 times.
This will help the power controller to correctly determine the capacity.
6. Self-replacement: step-by-step instructions
If you are going to replace the battery yourself, you will need:
- π§ Set of screwdrivers (cross, flat, flat, T3, T4).
- π§² Screen suction cup.
- π₯ Hair dryer or thermo-air station (for softening glue).
- π± Plastic blades (metallic can damage plumes).
- π New battery (original or certified analogue).
- π§΄ Clay. B-7000 (fixing).
π Step-by-step instruction:
- Turn off the phone and remove it. SIM-map.
- Heat the back cover with a hair dryer (60β70Β°C) for 2-3 minutes to soften the glue.
- Put a suction cup on the lid and gently remove it with a plastic spatula. Start at the bottom edge.
- Unscrew 12 screws (they are of different lengths - remember where you were!).
- Disconnect the battery plume (use a plastic blade to avoid damaging the contacts).
- Remove the old battery. It's glued -- put it in a spatula and gently pull the tongue (if any).
- Install a new battery, plug in the plume and check that the phone is turning on.
- Put the glue on. B-7000 on the edge of the battery and press the back cover.
- Turn the screws and check the performance.
β οΈ Warning: If you've never disassembled a smartphone, you'd better trust a replacement to a professional:
- π₯ Screen plume damage (repair costs 5,000β10,000) β½).
- π₯ Short circuit (if the battery is not connected correctly).
- π΅ Loss of tightness (dust and moisture will get inside the body).
Unconnected battery plume (check contacts).
- New battery discharged (plug in charge for 10-15 minutes).
- Damaged power controller (repair required in SCC).-->
7. Frequent errors when buying and replacing a battery
Even experienced users make mistakes sometimes, and here are the 5 most common ones that can cost you money or your phone:
- Buy at the lowest price. 1,000-1,500 battery β½ β It's always a fake. Savings of 1,000. β½ It could be a 10,000 repair. β½.
- Ignoring reviews: If the seller has 10 sales and 5 stars, that's not a metric, look for reviews with a photo/video and a serial number.
- If you don't disconnect the battery before you take it out, you can burn the motherboard with a static discharge.
- Using metal tools. One careless move, you'll tear the screen plume or damage the antenna contacts.
- Uncalibrated battery: If you don't do 2-3 full charge/discharge cycles, the phone will show the wrong percentage of charge.
π‘ Tip: After replacing the battery, reset Battery Stats settings via Engineering Mode (enter dial ##4636## β Battery information β This will help the system to correctly display the charge level.