Owners of the popular Xiaomi Redmi 8 often face natural wear and tear of the lithium-ion battery after 2-3 years of active use. The device, released in 2019, was equipped with a capacious power element at 5000 mAh, which was once considered the benchmark of autonomy. However, over time, the chemical composition degrades, leading to rapid discharge, sudden outages and bloating of the body.
The question of how much a new battery costs becomes critical when a smartphone stops holding a charge for at least half a day, and the market offers a variety of options, from cheap counterparts to expensive original components, the price depends on the quality of the cells, the availability of a protective board and the manufacturer's brand.
In this article, we will analyze in detail the pricing policy in the spare parts market, analyze the risks of buying used components and find out whether to change the battery yourself or better contact professionals. Competent approach will extend the life of your gadget without overpaying for unnecessary functions.
Factors Affecting Battery Cost
The first thing to understand when looking for a replacement is that the original part can't be cheap. Quality cell manufacturers use expensive materials and sophisticated overheating protection systems. Cheap copies often lack a charge controller, which can cause the motherboard to fail.
The total amount in the check is influenced by several key parameters, the main ones being:
- 📦 Type of production: original (OEM) High quality copy (High Copy).
- 🔋 Capacity: compliance with the declared 5000 mAh or understated performance.
- 🛡️ Set: presence of adhesive base, tools and protective film.
Logistics is also worth considering. Parts brought from China in large wholesale lots will cost less than those on the shelf of a local store "at home." Xiaomi Redmi 8 has a unified design, but the plume connector and the location of contacts should be perfect.
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When buying, always require a warranty card. A high-quality battery can not cost 300-400 rubles, this is the price of dangerous counterfeit.
Current battery prices for Redmi 8
Market analysis shows a significant range of prices. If you are looking for an original battery labeled BM4B or BN4B (depending on the revision), its cost in retail parts stores starts from 1200 rubles. In authorized service centers, the price can reach 2000-2500 rubles along with the work of the master.
The budget segment is represented by Chinese counterparts of the brands Nohon, Deji or unnamed versions, their price ranges from 600 to 900 rubles. However, the savings here are often illusory: the resource of such elements is 60-70% of the original, and after a year they may require re-replacement.
Below is a comparative table of the cost of different components for your model:
| Type of battery | Approximate price (ruble) | Guarantee | Cycle resource |
|---|---|---|---|
| Original Xiaomi (OEM) | 1300 - 1800 | 6-12 months | 800+ cycles |
| Quality copy (Nohon) | 800 - 1100 | 3-6 months | 500-600 cycles |
| Budgetary analogue | 450 - 700 | 14 days | 300-400 cycles |
| B/O from the showdown | 300 - 500 | No. | Unknown. |
Cost of professional replacement in the service
Many users are wondering whether to pay the wizard, if you can do everything yourself? the cost of a specialist to replace the battery on Xiaomi Redmi 8 averages from 800 to 1500 rubles. This amount depends on the region, level of service and difficulty accessing the battery.
The back cover of this smartphone is glued around the perimeter, which requires careful heating and the use of suction cups. Unskillful actions can lead to cracks in the glass or damage to the plume of the fingerprint scanner, which is often located next to the battery. Professional replacement involves not only installation, but also checking the tightness and cleaning contacts.
The rule is often that if you buy a battery from them, the cost of the installation is reduced or free, which is a good deal, because in the event of marriage, you will not waste time proving your innocence in a self-disassembly.
⚠️ Warning: If you see a battery bloating, do not attempt to pierce it or press it hard on the screen, which can cause a fire or chemical burn.
Self-replacement: risks and savings
By making a self-repair decision, you save the cost of the craftsman’s work, but you take all the risks. For the Xiaomi Redmi 8, the replacement process is relatively simple, but requires special tools. You will need: a heat dryer, a suction cup, plastic shoulder blades and a new B-7000 glue.
The challenge is to remove the old battery, which is attached to a two-way tape, which eventually sticks to the body, and if you pull it hard, you can damage the plumes or even puncture the battery itself, and safety first, you only do any manipulations after you completely turn off the device.
Calibration of the new battery is also important, and once installed, it is recommended to discharge the phone to 0% and then charge to 100% when it is off, which will help the power controller correctly determine the actual capacity of the cell.
☑️ Replacement tools
How to check the battery before buying?
How to distinguish the original from the fake
The market is oversaturated with replicas that look almost indistinguishable from the original, but the quality of the materials gives off a fake immediately. The original battery for the Redmi 8 has clear labeling, a barcode and a barcode. QR-code that can be read (although it is not always a guarantee, as codes have learned to copy).
Note the thickness of the battery: Cheap analogues are often 0.5-1 mm thicker than the original, due to the use of less dense cells and the lack of quality insulation. This can cause the back cover to bulge or peel off.
Key features of the original product:
- ✅ Perfect geometry and lack of backlash in the phone case.
- ✅ Presence of a hologram or protective film with a logo.
- ✅ Weight corresponding to the declared capacity (energy density).
It is also worth checking the voltage at the contacts with a multimeter before installation, it should be in the range of 3.7-3.8 V. If the voltage is much lower, the battery was in storage for a long time and could degrade.
Where to buy: online or shop at home
Buying in a large online store (AliExpress, Ozon, specialized sites) allows you to save up to 30-40% However, you risk getting the goods with the marriage, which you will have to return at your own expense. 2 weekly.
Local radio parts stores offer less choice and higher prices, but offer the ability to "feel" the item and get an instant replacement in the event of an apparent marriage.
If you choose an online marketplace, read reviews carefully, especially those with photos of real products, and look for sellers with a rating of at least 95% and a large number of orders.
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The optimal balance of price and quality is to order a proven brand (for example, Nohon) from a large online store with a local warehouse, which is cheaper than a service center, but more reliable than buying a nouneim in the market.