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BLP775 4200mAh 3.87V Li-ion Polymer replacement battery for Realme X50 RMX2141 and Realme X3 RMX2083, front view showing battery surface and small 2-pin connector

BLP775 4200mAh 3.87V Battery for Realme X50 X50t X50m X3 Replacement

Original price was: $25.99.Current price is: $18.99.

🔘 BLP775 4200mAh 3.87V | 🔋 Li-ion Polymer | 📱 For Realme X50 / X50t / X50m / X3 (30W Dart Charge)

8 in stock

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SKU: BLP775 Category: Tags: , , , , , ,
📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ Why Our Warranty Stands Out

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Warranty Period90 days from delivery15-30 days from order confirmation
When It Starts📦 Upon delivery⚠️ Upon order confirmation (even before you receive it)
Claims HandlingWe do it directly — email usAutomated dispute system, seller dependent
After Window ExpiresStill can contact us for supportNo recourse, seller can ignore you

🔋 90-day warranty is the industry standard for replacement batteries. Batteries naturally lose capacity over time — this normal wear is not covered. Warranty applies to manufacturing defects only.

📦 Shipping Cost & Delivery Time (Economy Shipping from China)

📦 Note: Batteries are classified as hazardous goods and must be shipped via specialized channels, which may take slightly longer than standard couriers. Delivery times are estimates and may be affected by customs, weather, or other unforeseen circumstances. If your country is not listed in the table below, we are currently unable to ship batteries to that destination.

DestinationFreight (USD)Est. Delivery Time
United States$7.808–15 days
Canada$6.8018–30 days
Mexico$10.0030–60 days
Germany, France, United Kingdom, Greece$6.5018–30 days
Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland$8.0018–30 days
Croatia, Finland, Lithuania, Latvia, Slovenia$8.0030–50 days
Bulgaria, Romania$14.0030–50 days
South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan$7.5018–30 days
United Arab Emirates, Saudi Arabia, Vietnam, Chile, Peru, Colombia, Brazil$18.0025–60 days

🇧🇷 Note for Brazil: Brazilian customs can occasionally cause delays of up to 80 days or more. And please indicate the recipient's CPF, as it is required for Brazilian customs and shipping. Thanks! We appreciate your understanding.

🇪🇺 Note for EU countries: Due to new EU customs regulations effective July 1, 2026, a flat tariff fee of $4.00 (approx. €3.50) applies to shipments to EU countries. This fee covers customs tariff, handling, and payment processing costs, and will be added at checkout. Thank you for your understanding.

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Description

✅ Condition: Brand New – Never used, factory-tested quality

✅ 4200mAh High Capacity – Restores full battery life for Realme X50 series and X3

✅ CE / RoHS / UN38.3 Certified

✅ 90-Day Warranty from delivery – Longer coverage than major platforms

✅ Ships in 3-7 days with tracking

🛡️ Shipping Protection Available at Checkout

✅ PayPal Buyer Protection included

✅ 100% Compatibility Guarantee – If it doesn’t fit, we’ll refund you. No questions asked.

⚠️ Low Stock Alert: Only 8 left in stock. Order now to avoid waiting.

Battery model: BLP775
Capacity: 4200mAh / 16.25Wh
Rated voltage: 3.87V
Charge limit voltage: 4.45V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: Realme X50 (RMX2141, RMX2142, RMX2144), Realme X50t (RMX2051), Realme X50m (RMX2141, RMX2142), Realme X3 (RMX2083), Realme X3 SuperZoom (RMX2086)
Package include: 1 x battery
Revive your Realme device with this BLP775 4200mAh replacement battery. Released in early 2020, the Realme X50 series (including X50, X50t, and X50m) were among the first affordable 5G smartphones, featuring 6.57-inch 120Hz displays, Snapdragon 765G processors, and quad-camera systems. The Realme X3 and X3 SuperZoom followed later in 2020, offering flagship-level Snapdragon 855+ performance at a mid-range price. Remarkably, all five models — X50, X50t, X50m, X3, and X3 SuperZoom — share the identical BLP775 4200mAh battery, making this replacement battery compatible across multiple devices. After 4-5 years of use, the original battery capacity has likely degraded significantly. This Li-ion Polymer battery restores the full 4200mAh capacity, bringing back the reliable all-day performance these phones were known for. Built with grade A cells and multi-layer safety protection against overcharge, over-discharge, and short circuits. CE, RoHS, and UN38.3 certified.
Why This Battery Replacement Matters for Realme Users: The Realme X50 series and X3 were designed for users who wanted 5G connectivity and high refresh rate displays without breaking the bank. The 4200mAh battery originally provided approximately a full day of heavy use. However, after years of charging cycles, the original battery’s capacity drops significantly. Common symptoms include: the phone needing multiple charges per day, shutting down at 15-25% battery remaining, slower charging than originally, or the battery swelling. This replacement restores the original battery life, saving you from buying a new phone. The BLP775 battery is also compatible with the phone’s 30W Dart Charge fast charging — reaching approximately 55% in 30 minutes and fully charged in about 70 minutes. The Realme UI is optimized for battery efficiency, and a fresh battery brings back the smooth, responsive experience these phones were known for.
Compatibility Note: Fits Realme X50 (RMX2141, RMX2142, RMX2144), Realme X50t (RMX2051), Realme X50m (RMX2141, RMX2142), Realme X3 (RMX2083), and Realme X3 SuperZoom (RMX2086). Please confirm your battery model before ordering — BLP775 is printed on your original battery. This battery is NOT compatible with Realme X50 Pro (which uses a different battery model), Realme X2, Realme X2 Pro, Realme X7 series, Realme GT series, or other Realme models.

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Frequently Asked Questions

The BLP775 battery for Realme devices is compatible with a wide range of models: Realme X50 (RMX2141, RMX2142, RMX2144), Realme X50t (RMX2051), Realme X50m (RMX2141, RMX2142), Realme X3 (RMX2083), and Realme X3 SuperZoom (RMX2086). If you need a Realme X50 battery replacement for RMX2141 or a Realme X3 battery replacement for RMX2083, this BLP775 4200mAh battery is the correct match. All five models share the same battery design. For BLP775 battery for Realme X50 compatibility, please verify your device model in Settings > About Phone. This battery is NOT compatible with Realme X50 Pro, Realme X2, Realme X2 Pro, Realme X7 series, Realme GT series, or other Realme models. If your Realme X50 or X3 battery drains quickly or won't hold a charge, this BLP775 replacement battery will restore full performance.

The BLP775 4200mAh battery for Realme X50 and X3 has a typical capacity of 4200mAh (16.25Wh) and a rated voltage of 3.87V, with a charge limit of 4.45V. This BLP775 3.87V 4200mAh Li-ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For Realme X50 battery life after replacement, expect approximately a full day of heavy use on a single charge. The Realme X50 4200mAh battery performance provides excellent endurance for 5G connectivity, 120Hz display usage, gaming, and media consumption. Charging the Realme X50 battery with the original 30W Dart Charge adapter takes approximately 30 minutes to 55% and 70 minutes to full. For Realme X3 battery performance, results are identical. For best performance, allow 2-3 full charge cycles after installation to calibrate the battery meter. If your original battery now requires daily multiple charges or shuts down at 15-25% remaining, this replacement will restore the original battery life.

Professional Realme X50 battery installation is recommended. Both the Realme X50 series and X3 have sealed glass backs with strong adhesive. To replace Realme X50 battery RMX2141 or replace Realme X3 battery RMX2083, the technician must heat the back cover to soften adhesive, carefully pry it open to avoid cracking the glass, disconnect the battery's small 2-pin connector, remove the old battery (lightly adhered), and install the new BLP775 battery before resealing. The 6.57-inch 120Hz display is fragile, and improper prying can damage it. Third-party repair shops typically charge $20-35 for labor. Realme official battery replacement costs vary by region. For Realme X50 battery health maintenance: 1) Use only the original Realme 30W Dart Charge charger and cable for optimal charging. 2) Keep battery level between 20% and 80% for daily use to maximize lifespan. 3) Avoid exposing the phone to high temperatures (above 40°C / 104°F), especially while charging. 4) For long-term storage (over 2 months), keep the battery at approximately 40-60% charge. 5) Perform a full calibration cycle after installation: drain the phone until it auto-shuts off, then charge uninterrupted to 100% using the original 30W Dart Charge charger. For Realme X3 battery care tips, stop using immediately if the battery shows any swelling.

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