Li3874T90P8h596788 7500mAh 3.79V silicon-carbon Li-ion replacement battery for Nubia Red Magic 11 Pro+ NX809J, front view showing battery label and connector flex cable

Li3874T90P8h596788 7500mAh 3.79V Li-ion Silicon-Carbon Replacement Battery for Nubia Red Magic 11 Pro+ NX809J 120W FlashCharge

$99.99

🔘 Li3874T90P8h596788 7500mAh 3.79V | 🔋 Silicon-Carbon Li-ion | 📱 Compatible with Nubia Red Magic 11 Pro+ NX809J 120W FlashCharge

8 in stock

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SKU: Li3874T90P8h596788 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

✅ 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: Li3874T90P8h596788
Capacity: 7500mAh (Typical) / 28.5Wh (Typical) | 7300mAh (Rated) / 27.7Wh
Rated voltage: 3.79V
Charge limit voltage: 4.45V
Battery type: Li-ion (Silicon‑Carbon / Si/C anode technology)
Compatible with: Nubia Red Magic 11 Pro+ (NX809J), Nubia Red Magic 11 Pro+ 5G Gaming Phone
Replaces OEM part number: Li3874T90P8h596788
Package include: 1 x battery
Restore the elite gaming performance of your Nubia Red Magic 11 Pro+ with this Li3874T90P8h596788 7500mAh replacement battery. The Red Magic 11 Pro+ was released in October 2025, featuring a 6.85‑inch 144Hz 1.5K AMOLED display, Qualcomm Snapdragon 8 Elite Gen 5 processor, IPX8 water resistance, and supports 120W wired FlashCharge plus 80W wireless fast charging. This lithium‑ion battery uses advanced silicon‑carbon (Si/C) anode technology, delivering the factory‑rated 7500mAh capacity and 28.5Wh energy for extended gaming sessions, 5G connectivity, and intensive multitasking. For reference, third‑party retailers sell this battery for approximately $75 to $120.
Built with Grade A silicon‑carbon lithium‑ion 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 Nubia Red Magic 11 Pro+ supports 120W FlashCharge wired fast charging and 80W wireless charging — when paired with the original 120W charger, the 7500mAh battery can be fully charged in approximately 30‑35 minutes. With a cycle life of 500+ full charge cycles, this replacement battery is designed for long‑term durability. Professional installation is strongly recommended as the battery is not user‑replaceable — the phone has a sealed design 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 11 Pro+ (NX809J) only — NOT compatible with Red Magic 11 Pro (which uses a different 8000mAh battery) or earlier Red Magic models. The phone is rated IPX8 water resistant — professional installation is strongly recommended to maintain this protection 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 120W FlashCharge performance, use the original Nubia 120W charger and cable 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 Li3874T90P8h596788 battery for Nubia Red Magic 11 Pro+ is compatible with Nubia Red Magic 11 Pro+ (model NX809J) only. The Red Magic 11 Pro+ was released in October 2025, featuring a 6.85‑inch 144Hz 1.5K AMOLED display, Qualcomm Snapdragon 8 Elite Gen 5 processor, IPX8 water resistance, and supports 120W wired FlashCharge plus 80W wireless charging. This Li3874T90P8h596788 silicon‑carbon lithium‑ion replacement battery for Red Magic 11 Pro+ NX809J delivers the factory-rated 7500mAh capacity. Important: This battery is NOT compatible with Red Magic 11 Pro (which uses an 8000mAh battery) or earlier Red Magic models. If your Nubia Red Magic 11 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 Li3874T90P8h596788 printed on your existing battery before purchasing.

The Li3874T90P8h596788 7500mAh 3.79V battery has a typical capacity of 7500mAh (28.5Wh) and a rated voltage of 3.79V. Charge limit voltage is 4.45V. It is a silicon‑carbon Li-ion battery built with Grade A cells and is CE, RoHS, and UN38.3 certified. The Nubia Red Magic 11 Pro+ supports 120W FlashCharge wired fast charging and 80W wireless fast charging — when paired with the original Nubia 120W charger, the 7500mAh silicon‑carbon battery can be fully charged in approximately 30‑35 minutes. According to official specifications, the phone also supports PD charging protocols. The device has an IPX8 water resistance rating — the phone can be submerged in up to 1.5 meters of water for 30 minutes. With a cycle life of 500+ full charge cycles, this Li3874T90P8h596788 replacement battery for Red Magic 11 Pro+ is designed for long-term durability. For best results, always use the original Nubia 120W FlashCharge charger that came with your phone.

Professional installation is strongly recommended for Nubia Red Magic 11 Pro+ battery replacement. The Red Magic 11 Pro+ has a sealed design with a glass back cover secured by strong adhesive and is rated IPX8 water resistant — it can be submerged in up to 1.5 meters of water for 30 minutes. The process to replace Li3874T90P8h596788 battery in Red Magic 11 Pro+ requires heating to soften adhesive, careful prying with plastic tools to avoid damaging the 6.85‑inch 144Hz AMOLED display, and proper resealing with fresh adhesive to maintain IPX8 water resistance after replacement. Water resistance may be compromised if the phone is not properly resealed. 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 $20-40 for labor, and IPX8 water resistance may not be fully guaranteed after non‑professional repair.

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