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Li3924T89P8h603284 5040mAh 7.78V Li-Polymer dual-cell replacement battery for Nubia Red Magic 8 Pro+, 8S Pro+, and 8S Pro, front view showing battery label and connector flex cable
Li3924T89P8h603284 5040mAh 7.78V replacement battery for Nubia Red Magic 8 Pro+, 8S Pro+, and 8S Pro, back view showing model number Li3924T89P8h603284, capacity 5040mAh, and voltage 7.78V on spec label

Li3924T89P8h603284 5040mAh 7.78V Li-Polymer Dual-Cell Replacement Battery for Nubia Red Magic 8 Pro+ / 8S Pro+ / 8S Pro 165W/80W

Original price was: $34.99.Current price is: $28.99.

🔘 Li3924T89P8h603284 5040mAh 7.78V | 🔋 Dual-Cell Li-Polymer | 📱 Compatible with Nubia Red Magic 8 Pro+ / 8S Pro+ / 8S Pro 165W/80W

1 in stock

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SKU: Li3924T89P8h603284 Category: Tags: , ,
📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ Why Our Warranty Stands Out

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Compare✅ Qingsm Tech⚠️ eBay / AliExpress
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
Ireland, Austria, Belgium, Poland, Denmark, Switzerland, Portugal, Norway, Slovakia, Spain, Hungary, Italy, Czech Republic, Luxembourg, Netherlands, Sweden, Cyprus$8.0018–30 days
Croatia, Finland, Lithuania, Latvia, Slovenia$8.0030–50 days
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.

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Description

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

✅ CE / RoHS / UN38.3 Certified

✅ Built‑in Overcharge / Over‑discharge / Short Circuit Protection

✅ 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 1 left in stock. Order now to avoid waiting.

Battery model: Li3924T89P8h603284
Total capacity: 5040mAh (Typical) / 19.5Wh | 5000mAh (Rated)
Single cell capacity: 2520mAh each (2 cells in series)
Rated voltage (pack output): 7.78V (3.89V × 2)
Single cell voltage: 3.89V
Charge limit voltage (single cell): 4.48V
Battery type: Li-Polymer / Li-ion (Dual‑cell series design)
Compatible with: Nubia Red Magic 8 Pro+ (NX729J), Nubia Red Magic 8S Pro+ (NX729J), Nubia Red Magic 8S Pro (NX729J)
Replaces OEM part number: Li3924T89P8h603284
Package include: 1 x battery (dual-cell integrated pack)
Restore the extreme gaming performance of your Red Magic 8 series phone with this Li3924T89P8h603284 5040mAh replacement battery. Compatible with Nubia Red Magic 8 Pro+ (released December 2022, 6.8-inch 120Hz AMOLED display, Snapdragon 8 Gen 2 processor), 8S Pro+ (July 2023, up to 24GB RAM), and 8S Pro (6000mAh original battery version). The Pro+ models originally feature a 5000mAh battery with industry‑leading 165W fast charging — capable of reaching 100% in just 14 minutes (advertised). This dual‑cell Li-Polymer battery uses a series design — two 2520mAh cells connected in series to achieve a combined output of 7.78V, delivering the factory‑rated equivalent 5000‑5040mAh capacity for extended gaming sessions. For reference, third‑party retailers sell this battery for approximately $25 to $40.
Built with Grade A Li-Polymer cells and multi‑layer safety protection against overcharge, over‑discharge, short circuit, and overcurrent. CE, RoHS, and UN38.3 certified for safe transport and use. The device supports 165W wired fast charging (Red Magic 8 Pro+ / 8S Pro+) or 80W fast charging (8S Pro) — when paired with the original Nubia charger, the battery can be charged at full speed. Professional installation is strongly recommended as the battery is not user‑replaceable — the phone has a sealed back cover with strong adhesive.
Compatibility Note: Please power down your device and check your original battery label before ordering. This battery is compatible with Nubia Red Magic 8 Pro+ (NX729J), Red Magic 8S Pro+ (NX729J), and Red Magic 8S Pro (NX729J). The 8S Pro version originally uses a 6000mAh battery — this 5040mAh battery is a tested alternative. The phone has no official IP water resistance rating, so water seal maintenance is not a concern after replacement.
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 165W/80W fast charging performance, use the original Nubia charger that came with your phone. If you don’t use the device for a long time, store it in a dry and cool place and charge it fully once every three months. If you notice swelling or overheating, stop use immediately.

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Frequently Asked Questions

The Li3924T89P8h603284 battery for Nubia Red Magic 8 Pro+ is compatible with Nubia Red Magic 8 Pro+ (model NX729J, released December 2022, 6.8-inch 120Hz AMOLED display, Snapdragon 8 Gen 2 processor, 5000mAh original battery, 165W fast charging), Nubia Red Magic 8S Pro+ (model NX729J, released July 2023, up to 24GB RAM, 5000mAh original battery, 165W fast charging), and Nubia Red Magic 8S Pro (model NX729J, 6000mAh original battery, 80W fast charging). The 8S Pro originally uses a 6000mAh battery — this 5040mAh Li3924T89P8h603284 dual-cell replacement battery has been tested to work with the 8S Pro as a compatible alternative. If your Nubia Red Magic 8 Pro+ battery replacement is needed because the phone drains quickly or won't hold a charge, this is the correct battery. Please verify your device model in Settings > About Phone and check the battery model Li3924T89P8h603284 printed on your existing battery before purchasing.

The Li3924T89P8h603284 5040mAh 7.78V battery has a typical total capacity of 5040mAh (19.5Wh) and a rated voltage of 7.78V. It is a dual‑cell Li-Polymer battery — two 2520mAh/3.89V single cells connected in series (7.78V = 3.89V × 2). Single‑cell charge limit voltage is 4.48V. The Li3924T89P8h603284 dual-cell Li-Polymer battery is built with Grade A cells and is CE, RoHS, and UN38.3 certified. The Li3924T89P8h603284 battery with 19.5Wh energy supports 165W fast charging for Pro+ models — when paired with the original Nubia 165W charger, the Red Magic 8 Pro+ can charge from 0% to 100% in just 14 minutes (advertised). The 8S Pro supports 80W fast charging, reaching 100% in approximately 35 minutes. The phone also supports PD3.0 charging protocols. With a cycle life of 500+ full charge cycles, this Li3924T89P8h603284 replacement battery is designed for long-term durability. For best results, always use the original Nubia charger that came with your phone.

Professional installation is strongly recommended for Nubia Red Magic 8 Pro+ battery replacement. The Red Magic 8 series has a sealed design with a glass or metal back cover secured by strong adhesive — the battery is not user‑replaceable. The process to replace Li3924T89P8h603284 battery in Nubia Red Magic 8 Pro+ requires heating to soften adhesive, careful prying with plastic tools to avoid damaging the 6.8-inch AMOLED display or back cover, and proper reassembly. The phone has no official IP water resistance rating, so water seal maintenance is not a concern after replacement. If you choose 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 $15-30 for labor.

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