Description
Battery model: B-U5
Equivalent capacity: 4500mAh (typical) / 4380mAh (rated) — 17.50Wh / 17.03Wh
Single cell capacity: 2250mAh × 2 cells in series
Rated voltage: 7.78V (3.89V × 2 cells in series)
Charge limit voltage: 8.9V (4.45V × 2 cells in series)
Battery type: Li-ion Polymer — Dual-cell series design for fast charging (2S)
Compatible with: Vivo X80 (V2183A, V2144)
Package include: 1 x battery
Restore the flagship performance of your Vivo X80 with this B-U5 4500mAh replacement battery. Released in April 2022, the Vivo X80 features a 6.78-inch 120Hz AMOLED display, MediaTek Dimensity 9000 processor, and supports 80W wired fast charging with dual-cell flash charge technology. This dual-cell Li-ion Polymer battery restores the original equivalent 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.
About the Dual-Cell Design: The Vivo X80 uses a dual-cell series battery architecture (7.78V = 3.89V × 2). Each cell provides 2250mAh capacity, combining for an equivalent total capacity of 4500mAh. This 2S design enables the 80W ultra-fast charging while maintaining the device’s slim profile.
Compatibility Note: Fits Vivo X80 (models V2183A, V2144). Please confirm your battery model before ordering — B-U5 is printed on your original battery. If your X80 battery drains quickly or won’t hold a charge, this B-U5 7.78V dual-cell battery is the correct replacement. Professional installation is strongly 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 80W Vivo flash charger. If you notice swelling or overheating, stop use immediately.
✅ Condition: Brand New – Never used, factory-tested quality
✅ 4500mAh High Capacity – Dual-cell design for flagship performance
✅ 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 | $7.80 | 8-20 days |
| Canada | $6.80 | 18-45 days |
| Mexico | $10.00 | 30-60 days |
| Germany, France, United Kingdom, Greece | $6.50 | 18-45 days |
| Ireland, Austria, Belgium, Poland, Denmark, Switzerland, Portugal, Norway, Slovakia, Spain, Hungary, Italy, Czech Republic, Luxembourg, Netherlands, Sweden, Cyprus | $8.00 | 18-45 days |
| Croatia, Finland, Lithuania, Latvia, Slovenia | $8.00 | 30-60 days |
| Romania | $14.00 | 30-60 days |
| South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan | $7.50 | 18-45 days |
| United Arab Emirates, Saudi Arabia, Vietnam, Chile, Peru, Colombia, Brazil | $18.00 | 25-60 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.
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