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B-P9 4000mAh 3.89V Li-Polymer replacement battery for Vivo V21 5G and S9 5G, front view on white background

B-P9 4000mAh 3.89V Replacement Battery for Vivo V21 5G / S9 5G (V2050 / V2072a)

Original price was: $19.99.Current price is: $16.99.

🔘 B-P9 4000mAh 3.89V | 🔋 Li-Polymer | 📱 For Vivo V21 5G / S9 5G (V2050 / V2072a)

8 in stock

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SKU: B-P9 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.

🔋 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

Description

✅ Condition: Brand New – Never used, premium quality

✅ CE / RoHS / UN38.3 Certified – Safety tested

✅ 90-Day Warranty – Hassle-free replacement

✅ Ships in 3-7 days with tracking – Fast delivery

🛡️ Shipping Protection Available at Checkout – Covered against loss, damage, or theft

✅ PayPal Buyer Protection included – Secure checkout

✅ 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: B-P9
Battery capacity: 4000mAh
Rated voltage: 3.89V
Charge limit voltage: 4.45V
Battery type: Li-Polymer
Compatible with: Vivo V21 5G (V2050), Vivo S9 5G (V2072a), Vivo V21 4G (V2066, V2108)
Package include: 1 x battery
Restore the power of your Vivo V21 5G or S9 5G with this B-P9 4000mAh replacement battery. Designed for the V2050 and V2072a models, this Li-Polymer cell delivers reliable performance for all-day use. The Vivo V21 and S9 feature 33W fast charging, reaching 60% in just 30 minutes. This replacement battery works seamlessly with the device’s fast charging system. Built-in multi-layer safety protection guards against overcharge, over-discharge, and short circuits. Made with grade A cells. CE, RoHS, and UN38.3 certified for safety compliance. Professional installation recommended as the battery is not user-replaceable.
Compatibility Note: Compatible with Vivo V21 5G (V2050), Vivo S9 5G (V2072a), and Vivo V21 4G (V2066, V2108). Please check your current battery model before purchasing.
Battery Care Tips: Avoid full discharge (keep above 20%). Keep away from high temperatures. If swelling occurs, stop use immediately. For best performance, use the charger that came with your device.

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Frequently Asked Questions

You can find a reliable B-P9 replacement battery for Vivo V21 5G here. This 4000mAh Li-Polymer cell is specifically designed for Vivo V21 5G (V2050) and Vivo S9 5G (V2072a). If your Vivo V21 battery is draining too fast or not holding a charge, this is the correct replacement. Please check your current battery model before purchasing.

Yes, this 4000mAh battery for Vivo S9 5G fully supports the 33W fast charging capability of the device. If you need a high-capacity replacement battery for Vivo S9 5G that supports fast charging, this Li-Polymer cell is the perfect choice. Made with grade A cells, CE, RoHS, and UN38.3 certified.

The B-P9 Vivo V21 battery replacement warranty includes 90-day coverage and a 100% compatibility guarantee. If you need a B-P9 battery replacement for Vivo S9 5G, order with confidence. Orders ship in 3-7 days with tracking provided.

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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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