Replacing the battery on Xiaomi Redmi 4X: the cost, where to do and how not to overpay

How much does it cost to replace the battery on Xiaomi Redmi 4X in 2026?

If your Xiaomi Redmi 4X is running out in a few hours, shutting down at 20-30% charge or requires constant recharging, the problem is almost certainly the battery life in budget smartphones rarely exceeds 2-3 years of active use, and the Redmi 4X, released in 2017, by 2026, already definitely needs a battery replacement.

The cost of replacing the battery on this model varies from 800 to 2500 rubles depending on the type of battery, the repair site and the region. But before you take the phone to the workshop, it is worth figuring out where it is cheaper, which batteries are installed, and how not to run into poor-quality repairs. This article is current prices, a comparison of service centers and private masters, and a list of proven suppliers of original batteries for the Redmi 4X.

Private workshops vs. private workshops: where is cheaper?

The first question that arises from owners of Xiaomi Redmi 4X: contact an authorized service center or look for a private master? the difference in price can reach 50-70%, but there are nuances.

In official Xiaomi services (for example, Mi Service or partner centers), the replacement of the battery will cost 1800-2500 rubles.

🔋 Original battery (or certified analogue)
🛠️ Work guarantee (usually 3-6 months)
📋 Diagnosis before replacement (sometimes free)

Private workshops offer prices between 800 and 1,500 rubles, but the risks are higher: you can run into poor-quality battery or careless work, for example, some stores install cheap Chinese batteries with a capacity of 2800 mAh instead of the original 4100 mAh, which leads to even faster discharge.

📊 Where do you usually repair your smartphone?

Official service

The private master.

Independently.

Never repaired.

Cost of replacing the battery depending on the type of battery

The price depends on which battery you choose. There are three options available for the Redmi 4X:

Type of battery	Capacity	Cost (battery only)	Cost of work	Guarantee
The original (Xiaomi)	4100 mAh	1200–1500 ₽	1800–2500 ₽	6–12 months
Certified analogue (e.g. Patona)	4000-4100 mAh	600–900 ₽	1200–1600 ₽	3–6 months
Unoriginal (no-name)	2800-3500 mAh	300–500 ₽	800–1200 ₽	1–3 months (or not)

Note that cheap batteries often have low capacity, for example, instead of the declared 4100 mAh, the actual capacity can be 3200-3500 mAh. You can check this with applications like AccuBattery or AIDA64 after installation.

⚠️ Note: If the master offers to replace the battery for 600-700 rubles "with work", most likely, you will install a low-quality battery that will last no more than six months.

Step-by-step: how to replace the battery yourself

If you're not afraid to take your smartphone apart and you're experienced with small electronics, you can save money and change the battery with your own hands.

🔧 Set of screwdrivers (cross, flat, tweezers)
🔥 Hair dryer or thermo-air station (for softening glue)
📱 New battery (recommended original or Patona)
🧴 Isopropyl alcohol (for cleaning contacts)
🛡️ Plastic mediators (for careful liding)

Replacement process:

Turn off the phone and remove it. SIM-map.
Heat the back cover (especially at the edges) with a hair dryer for 1-2 minutes.
Carefully tuck the lid with a plastic mediator, starting at the bottom edge.
Unscrew the screws holding the battery's metal plate.
Disconnect the battery plume from the motherboard.
Tap the battery and remove the glue residue with alcohol.
Install a new battery, plug in the plume and assemble the phone in reverse order.

Backup data | Charge phone to 30-50% | Prepare the workplace (clean surface, good lighting) |Buy high-quality glue to fix the new battery-->

⚠️ Warning: It's easy to damage the plume of the display or the camera when you replace it yourself. If you've never taken a smartphone apart, you'd better leave it to the professionals -- it's cheaper to repair than replacing the screen or the motherboard.

What if the battery does not hold charge after replacement?

If the new battery is running out too quickly, check: 1. Battery quality – unoriginal often have an understated capacity. 2. Power controller condition – if it is damaged, the phone will “see” the battery as dead. 3. Software settings – reset to factory settings (Settings → Additional → Recovery and Reset). 4. Wear of the charging connector – if the contacts are oxidized, the phone may not charge fully.

Where to buy a high-quality battery for Xiaomi Redmi 4X?

If you're going to replace the battery yourself or bring it to the master, it's important to choose a reliable supplier.

🛒 Xiaomi’s official store – original batteries, but the price is higher (1200-1500) ₽).
🌍 AliExpress – cheaper (600–900) ₽), But you're at risk of getting faked%+ and reviews in Russian.
🏬 Local parts stores, such as FixPriceService or Mobile Driver, 700-1,100 ₽, You can check the battery before buying.
🔧 Service centers – some sell batteries separately (check by phone).

When buying, pay attention to:

📦 Packaging – Xiaomi’s original batteries have a hologram and serial number.
🔢 Capacity - must be at least 4000 mAh.
📅 Production Date – If the battery has been in storage for more than a year, its capacity has already decreased.

💡

Before buying a battery on AliExpress, check the reviews with the photo - often sellers send batteries with low capacity. If the description says "High Quality" and the price is suspiciously low, this is a sure sign of a fake.

How long will the new battery last?

The battery life depends on several factors:

🔋 Type of battery - original last longer (2-3 years), non-original - 6-12 months.
🔌 Charging mode – frequent overheating and charging “up to 100%” reduce the resource.
📱 Intensity of use – games and videos drain the battery faster.
🌡️ Temperature regime - optimally 10-35°C. Charging in the cold or in the heat damages the battery.

To extend the life of a new battery:

🔄 Avoid full discharge (charge at 10-20%).
⚡ Don’t leave your phone on charge all night.
🔥 Use an original or certified power supply.
📴 Disable background apps that consume charge (check in Settings) → Battery).

💡

The optimal charging mode for battery life is 20% to 80%, and constant charging up to 100% reduces battery life by 30-40%.

Frequent problems after battery replacement and how to fix them

Even if the replacement is successful, there may be problems, and here are the most common ways to fix them:

Problem.	Possible cause	Decision
Phone's off.	Unconnected battery plume or damaged motherboard	Check the connection of the plume. If it doesn't work, the diagnostics are on the service.
Battery discharged in 2-3 hours	Unoriginal battery or high energy consumption software	Check the capacity in AccuBattery. If it's less than 3,500 mAh, replace the battery.
The phone turns off at 30-40% charge	Uncalibrated charge controller	Completely discharge and charge your phone 2-3 times in a row
Battery swelled after 1-2 months	Low-quality battery or overheating	Replace immediately!: Bloated battery could damage screen or board

If after replacing the battery, the phone began to overheat or discharge quickly, check:

🔍 Charging connector state – oxidized contacts can cause short circuit.
📊 Battery consumption by application (in Settings) → Battery).
🔄 Firmware version – outdated software may incorrectly display the charge level.

FAQ: Frequent questions about replacing the battery with Xiaomi Redmi 4X

Can I replace the battery with a Redmi 4X with a capacity of more than 4100 mAh?

Theoretically, yes, but it doesn't make sense in practice. The maximum capacity that Redmi 4X supports is 4100 mAh. Installing a 5,000 mAh battery won't give you any more autonomy, because the system won't charge it fully, and more capacious batteries are often larger and may not fit into the case.

How long does it take to replace the battery in the service?

In most workshops, the procedure takes 30-60 minutes if there is no queue. In official Xiaomi services, it can take 1-2 days due to diagnostics and warranty procedures. When replacing yourself, it takes 1.5-2 hours for beginners, and for experienced ones, 20-30 minutes.

What to do if the phone does not see after the battery replacement SIM-map?

This problem is not directly related to the battery, but it's likely that the antenna plume or tray contacts were damaged during the disassembly. SIM-Try it: Take it out and paste it. SIM-map again. Check network settings (Settings) → SIM-If it does not help, contact the service to check the antenna module.

How to check if the original battery is installed?

There are a number of ways: 🏷️ Xiaomi’s original batteries have a hologram and serial number. 📊 Check the capacity in AccuBattery – if less than 4000 mAh, it is fake. 🔍 Look at the contacts -- the original has a protective layer, the fakes often show signs of soldering, and you can compare the weight: the original battery weighs about 45 to 50 g, and the cheap ones are 30-40 g.

Should I change the battery to the Redmi 4X in 2026 or should I buy a new phone?

It depends on your needs: ✅ Change the battery if: the phone suits performance, and the new smartphone can not afford. ❌ It is better to buy a new one if: Redmi 4X slowing down, does not support modern applications or you need to NFC/5G. Cost of battery replacement (1000–1500 ₽) into 5–10 less than the price of a new budget smartphone (Redmi) 12C POCO M6 stand ~10 000 ₽). If the phone is working, replacing the battery will prolong its life by another 2–3 year-end.