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BLP811 4300mAh 7.74V dual-cell Li-Polymer replacement battery for Oppo Reno 4 SE PEAT00, Oppo Reno 5 PEGM00, and Oppo Find X3 Lite CPH2145, front view on white background showing battery surface and connector flex cable
BLP811 4300mAh 7.74V replacement battery for Oppo Reno 4 SE, Oppo Reno 5 5G, and Oppo Find X3 Lite, back view showing model number BLP811, capacity 4300mAh, and voltage 7.74V on spec label

BLP811 4300mAh 7.74V Li-Polymer Dual-Cell Replacement Battery for Oppo Reno 4 SE / Reno 5 / Find X3 Lite 65W

Original price was: $24.99.Current price is: $18.99.

🔘 BLP811 4300mAh 7.74V | 🔋 Li-Polymer (Dual-cell) | 📱 Compatible with Oppo Reno 4 SE / Reno 5 / Find X3 Lite 65W

8 in stock

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SKU: BLP811 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: BLP811
Total capacity: 4300mAh / 16.64Wh (2 × 2150mAh cells)
Single cell capacity: 2150mAh (2 cells in series)
Rated voltage: 7.74V (3.87V × 2)
Single cell voltage: 3.87V
Charge limit voltage (single cell): 4.45V
Battery type: Li-Polymer / Li-ion (Dual‑cell series design)
Compatible with: Oppo Reno 4 SE (PEAT00, PEAM00), Oppo Reno 5 5G (PEGM00, PEGT00, CPH2145), Oppo Reno 5 K, Oppo Find X3 Lite (CPH2145), Oppo K9
Package include: 1 x battery (Complete dual‑cell battery pack)
Revitalize your Oppo smartphone with this BLP811 4300mAh replacement battery. Compatible with Oppo Reno 4 SE (released September 2020, featuring a 6.43-inch AMOLED display, MediaTek Dimensity 720 processor, 48MP triple camera, and ultra‑slim 169g body), Oppo Reno 5 5G (December 2020), and Oppo Find X3 Lite (April 2021). All these devices feature a massive 65W SuperVOOC 2.0 fast charging technology, allowing you to charge up to 60‑100% in just 30‑35 minutes.
This Li-Polymer battery uses an advanced dual‑cell series design — two 2150mAh/3.87V cells connected in series to achieve a combined voltage of 7.74V — delivering the factory‑rated 4300mAh capacity for 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. For reference, third‑party retailers sell this battery for approximately $15 to $31.
Compatibility Note: Please power down your device and check your original battery label before ordering. Ensure the model number printed matches BLP811. This battery is compatible with Oppo Reno 4 SE (PEAT00, PEAM00), Oppo Reno 5 5G (PEGM00, PEGT00, CPH2145), Oppo Find X3 Lite (CPH2145), Oppo Reno 5 K, and Oppo K9. Professional installation is recommended as the phone has a sealed back cover with strong adhesive. The phone is not water resistant, 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 65W SuperVOOC 2.0 charging performance, use the original Oppo SuperVOOC 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 BLP811 battery for Oppo Reno 4 SE is compatible with Oppo Reno 4 SE (PEAT00, PEAM00), Oppo Reno 5 5G (PEGM00, PEGT00, CPH2145), Oppo Reno 5 K, Oppo Find X3 Lite (CPH2145), and Oppo K9. The Oppo Reno 4 SE was released in September 2020 featuring a 6.43-inch AMOLED display, MediaTek Dimensity 720 processor, 48MP triple camera, and an ultra‑slim 169g body. The Oppo Reno 5 5G was released in December 2020 with a 6.55-inch OLED display and Qualcomm Snapdragon 765G. The Oppo Find X3 Lite was released in April 2021 with a 6.43-inch OLED display and Qualcomm Snapdragon 765G. This 4300mAh dual-cell battery for Oppo Reno 4 SE PEAT00 is a direct replacement for the original BLP811 battery. If your Oppo Reno 5 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 and check the battery model BLP811 printed on your existing battery before purchasing.

The BLP811 4300mAh 7.74V battery has a total typical capacity of 4300mAh (16.64Wh) and a combined output voltage of 7.74V. It is a dual‑cell Li-Polymer battery — two 2150mAh/3.87V single cells connected in series (7.74V = 3.87V × 2). Single‑cell charge limit voltage is 4.45V. The battery is CE, RoHS, and UN38.3 certified and built with Grade A cells. The Oppo Reno 4 SE, Reno 5 5G, and Find X3 Lite support 65W SuperVOOC 2.0 fast charging — when paired with the original 65W SuperVOOC charger and cable, these phones can charge from 0% to 60‑100% in approximately 30‑35 minutes. Using the original SuperVOOC charger is critical for achieving full fast charging speed, as standard chargers will not produce the same results.

Professional installation is strongly recommended for Oppo Reno 4 SE battery installation. The Oppo Reno 4 SE, Reno 5 5G, and Find X3 Lite all have sealed designs with glass or plastic back covers secured by strong adhesive. The process to replace BLP811 battery in Oppo Reno 4 SE requires heating to soften adhesive and careful prying to avoid damaging the display or back cover — the Reno 4 SE features a curved back design that requires extra caution. The phones are not water resistant (no IP 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), use plastic tools to avoid damaging internal components, and note that the BLP811 uses dual‑cell construction with specific connection requirements. Third-party repair shops typically charge $20-40 for labor.

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