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Li3959T45P8h816758 6150mAh 3.86V Li-Polymer replacement battery for Nubia Z70 Ultra NX733J, front view showing battery surface and connector flex cable
Li3959T45P8h816758 6150mAh 3.86V replacement battery for Nubia Z70 Ultra NX733J, back view showing model number Li3959T45P8h816758, capacity 6150mAh, and voltage 3.86V on spec label

Li3959T45P8h816758 6150mAh 3.86V Li-Polymer Replacement Battery for Nubia Z70 Ultra NX733J NX736J 80W

Original price was: $35.99.Current price is: $29.99.

🔘 Li3959T45P8h816758 6150mAh 3.86V | 🔋 Li-Polymer (Silicon-carbon) | 📱 Compatible with Nubia Z70 Ultra NX733J / NX736J 80W

8 in stock

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SKU: Li3959T45P8h816758 Category: Tags: , ,
📦 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 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: Li3959T45P8h816758
Capacity: 6150mAh (Typical) / 23.7Wh
Rated voltage: 3.86V
Charge limit voltage: 4.45V
Battery type: Li-Polymer / Li-ion (Silicon-carbon anode technology)
Compatible with: Nubia Z70 Ultra (NX733J, NX736J)
Package include: 1 x battery
Restore the battery life of your Nubia Z70 Ultra with this Li3959T45P8h816758 6150mAh replacement battery. Released in November 2024, the Nubia Z70 Ultra features a 6.85-inch 144Hz 1.5K AMOLED display, Qualcomm Snapdragon 8 Elite processor, and IP68/IP69 dust/water resistance. This Li-Polymer battery uses advanced silicon-carbon anode technology (Nubia’s “Second Generation South Sea Battery”) — delivering the factory-rated 6150mAh capacity for extended all-day usage.
Built with high-quality 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 battery supports 80W wired fast charging with PD3.0 and QC4 compatibility — according to official testing, the phone can charge from 0% to 100% in approximately 39 minutes under normal conditions.[reference:0]For reference, third-party retailers sell this battery for approximately $25 to $45.
Compatibility Note: Please power down your device and check your original battery label before ordering. Ensure the model number printed matches Li3959T45P8h816758. This battery is compatible with Nubia Z70 Ultra (models NX733J, NX736J). Professional installation is recommended as the phone has a sealed design with strong adhesive and IP68/IP69 water resistance — proper resealing is required to maintain 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 80W fast charging performance, use the original Nubia charger and cable that came with your phone. If you don’t use the battery 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 Li3959T45P8h816758 battery for Nubia Z70 Ultra is compatible with Nubia Z70 Ultra models NX733J and NX736J. The Nubia Z70 Ultra was released in November 2024 featuring a 6.85-inch 144Hz 1.5K AMOLED display and Qualcomm Snapdragon 8 Elite processor. This 6150mAh battery for Nubia Z70 Ultra NX733J is a direct replacement for the original battery. If your Nubia Z70 Ultra 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 Li3959T45P8h816758 printed on your existing battery before purchasing.

The Li3959T45P8h816758 6150mAh 3.86V battery has a typical capacity of 6150mAh (23.7Wh) and a rated voltage of 3.86V. Charge limit voltage is 4.45V. It is a Li-Polymer battery built with Grade A cells using silicon-carbon anode technology (Nubia's Second Generation South Sea Battery) and is CE, RoHS, and UN38.3 certified. The Nubia Z70 Ultra supports 80W wired fast charging with PD3.0 and QC4 compatibility — when paired with the original 80W charger and cable, the phone can charge from 0% to 100% in approximately 39 minutes under normal temperature conditions. For best results, always use the original Nubia charger and cable that came with your phone.

Professional installation is strongly recommended for Nubia Z70 Ultra battery installation. The Nubia Z70 Ultra has a sealed design with a glass back cover secured by strong adhesive and is IP68/IP69 dust/water resistant — rated for submersion up to 1.5 meters and protection against high-pressure water jets. The process to replace Li3959T45P8h816758 battery in Nubia Z70 Ultra requires heating to soften adhesive, careful prying to avoid damaging the display or back cover, and proper resealing with fresh adhesive to maintain IP68/IP69 water resistance 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), use plastic tools to avoid damaging internal components, and never reuse a battery after removal. Third-party repair shops typically charge $30-50 for labor, and water resistance may not be fully guaranteed after non-professional repair.

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