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BLP877 5000mAh 3.87V Li-ion replacement battery for Realme 8i RMX3151, front view on white background showing battery surface and connector flex cable

BLP877 5000mAh 3.87V Li-ion Replacement Battery for Realme 8i RMX3151 18W Fast Charging

Original price was: $24.99.Current price is: $17.99.

🔘 BLP877 5000mAh 3.87V | 🔋 Li-ion | 📱 For Realme 8i RMX3151 18W Fast Charging

8 in stock

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SKU: BLP877 Category: Tags: , , ,

Description

Battery model: BLP877
Capacity: 5000mAh / 19.35Wh
Rated voltage: 3.87V
Charge limit voltage: 4.45V
Battery type: Li-ion
Compatible with: Realme 8i (RMX3151)
Package include: 1 x battery
Restore the battery performance of your Realme 8i with this BLP877 5000mAh replacement battery. Released in September 2021, the Realme 8i features a 6.6-inch FHD+ 90Hz IPS LCD display, MediaTek Helio G96 processor, and supports 18W fast charging. This Li-ion battery restores the original 5000mAh capacity for all-day use. Built with grade A cells and multi-layer safety protection against overcharge, over-discharge, and short circuits. CE, RoHS, and UN38.3 certified.
Compatibility Note: Fits Realme 8i (model RMX3151). Please confirm your battery model before ordering — BLP877 is printed on your original battery. If your Realme 8i battery drains quickly or won’t hold a charge, this BLP877 5000mAh battery replacement is the correct choice. Professional installation is recommended as the phone has a sealed design.
Battery Care Tips: Avoid full discharge — keep battery level above 20%. Do not expose to high temperatures or direct sunlight. New batteries require 3-5 full charge cycles to reach optimal capacity. For best lifespan, use a certified Realme 8i charger. If you notice swelling or overheating, stop use immediately.

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

✅ 5000mAh High Capacity – All-day battery life

✅ 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.

📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ Why Our Warranty Stands Out

Unlike marketplace sellers with short buyer protection windows, we handle claims directly — no automated disputes, no endless back-and-forth.

Compare ✅ Qingsm Tech ⚠️ eBay / AliExpress
Warranty Period 90 days from delivery 15-30 days from order confirmation
When It Starts 📦 Upon delivery ⚠️ Upon order confirmation (even before you receive it)
Claims Handling We do it directly — email us Automated dispute system, seller dependent
After Window Expires Still can contact us for support No 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; actual delivery may be affected by customs, weather, or other unforeseen circumstances.

Destination Freight (USD) Est. Delivery Time
United States$7.808-20 days
Canada$6.8018-45 days
Mexico$10.0030-60 days
Germany, France, United Kingdom, Greece$6.5018-45 days
Ireland, Austria, Belgium, Poland, Denmark, Switzerland, Portugal, Norway, Slovakia, Spain, Hungary, Italy, Czech Republic, Luxembourg, Netherlands, Sweden, Cyprus$8.0018-45 days
Croatia, Finland, Lithuania, Latvia, Slovenia$8.0030-60 days
Romania$14.0030-60 days
South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan$7.5018-45 days
United Arab Emirates, Saudi Arabia, Vietnam, Chile, Peru, Colombia, Brazil$18.0025-60 days

* Delivery times are estimates; actual delivery may be affected by customs or other factors. If your country is not listed, we are currently unable to ship batteries to that destination.

🇧🇷 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.

🔋 Can't find your battery model? Use our FREE Battery Lookup Service – tell us your device and we'll find a match within 24 hours. 👉 battery.qingsm.tech/find-my-battery

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Frequently Asked Questions

The BLP877 battery for Realme 8i RMX3151 is compatible with Realme 8i (model RMX3151). If you need a BLP877 battery replacement for RMX3151 Realme 8i, this is the exact match. The Realme 8i features a 6.6-inch FHD+ IPS LCD display with 90Hz refresh rate, MediaTek Helio G96 processor, and a massive 5000mAh battery design. For Realme 8i RMX3151 battery replacement, please verify your battery model before ordering — BLP877 is printed on your original battery. Please check your device model in Settings > About Phone before purchasing.

The BLP877 5000mAh battery replacement for Realme 8i has a capacity of 5000mAh (19.35Wh) and a rated voltage of 3.87V. Charge limit voltage is 4.45V. It is a Li-ion battery built with grade A cells and is CE, RoHS, and UN38.3 certified. For Realme 8i 5000mAh BLP877 battery, it fully supports the original 18W fast charging of the Realme 8i — providing all-day power with a 5000mAh capacity that lasts for up to 8 hours of continuous gameplay. This Realme 8i 18W fast charging battery delivers reliable performance with multi-layer safety protection against overcharge and short circuits.

Professional Realme 8i battery installation is strongly recommended for the BLP877 battery. The Realme 8i has a sealed design with strong adhesive. To replace Realme 8i battery RMX3151, the phone requires heating to soften adhesive and careful prying to avoid damaging the 6.6-inch 90Hz display. For BLP877 battery Realme 8i installation, improper handling may damage the display or the battery management system. If you attempt DIY phone battery replacement, watch a full teardown tutorial before starting, use a heat gun at low temperature (no more than 70°C), and never reuse a battery after removal. Third-party repair shops typically charge $15-25 for labor. Realme official battery replacement costs vary by region, typically $15-20 for the Realme 8i.

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This battery is in stock and ready to ship within 3-7 days. 90-day warranty included.

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