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BLP791 4015mAh Replacement Battery for OPPO Mobile Phone

BLP791 4015mAh replacement battery from an OPPO BLP791 battery supplier. ESC supports wholesale buyers with factory QC, OEM service, private label and stable global supply.

BLP791 4015mAh Replacement Battery for OPPO Mobile Phone






Why Choose BLP791 Replacement Battery from ESC

Professional Replacement Battery Manufacturer

ESC specializes in mobile phone replacement batteries for professional B2B markets. We supply repair shops, refurbishers, wholesalers and distributors requiring stable quality and long-term sourcing.

Reliable OPPO BLP791 Battery Supplier

As an experienced OPPO BLP791 battery supplier, ESC supports wholesale purchasing, repeat orders and mixed-model sourcing for mobile phone parts businesses worldwide.

4015mAh Typical Capacity

The BLP791 provides 4015mAh typical capacity with 3.87V nominal voltage, offering stable power performance for professional replacement and refurbishment applications.

Multi-Step Factory Quality Control

Each battery is inspected for capacity, voltage, internal resistance and aging performance before shipment to improve batch consistency and reduce quality risks.

OEM and Private Label Support

ESC supports OEM branding, customized packaging and private label projects for wholesalers, distributors and businesses developing their own replacement battery brands.

Global Wholesale Supply

International battery shipments can be arranged by air, sea or railway according to destination, order quantity and applicable lithium battery transportation requirements.

Quick Specifications

Specification Details
Product Type Replacement Battery
Battery Model BLP791
Cell Model 11CP5/63/84
Battery Chemistry Rechargeable Li-ion Polymer Battery
Typical Capacity 4015mAh
Rated Capacity 3920mAh
Nominal Voltage 3.87V
Typical Energy 15.53Wh
Rated Energy 15.17Wh
Limit Charge Voltage 4.45V
Defective Rate ≤1%
Lead Time 5–7 Days, subject to order confirmation
Warranty 12 Months
Certifications / Documents CE, PSE, IEC 62133, UN38.3, MSDS
MOQ Flexible MOQ; mixed-model orders available
OEM / Private Label Available
Shipping Methods Air, Sea, Railway
Target Buyers Repair Shops, Refurbishers, Wholesalers, Distributors

OPPO BLP791 battery supplier 4015mAh Li-ion polymer replacement battery wholesale

What Is the OPPO BLP791 Replacement Battery?

The BLP791 is a 4015mAh typical-capacity Li-ion polymer replacement battery designed for professional smartphone repair, refurbishment and wholesale supply. As an OPPO BLP791 battery supplier, ESC provides B2B buyers with factory QC, OEM support, mixed-model purchasing and reliable long-term battery sourcing.

Key Features

1. 4015mAh Typical Capacity

Provides 4015mAh typical capacity, 3920mAh rated capacity and 3.87V nominal voltage for stable replacement battery performance.

2. Rechargeable Li-ion Polymer Design

The rechargeable Li-ion polymer construction provides reliable energy output and consistent performance for professional repair applications.

3. 4.45V Charge Limit

Designed with a 4.45V limit charge voltage to match the electrical requirements of the BLP791 battery platform.

4. Factory Quality Testing

Capacity, voltage, internal resistance and aging performance are checked before shipment to help maintain consistent wholesale quality.

5. Wholesale and OEM Ready

Suitable for repair chains, refurbishment companies, wholesalers, distributors and private label battery projects.

Applications

Smartphone Repair Shops

Designed for technicians replacing aged, damaged or poor-performing batteries in compatible smartphones.

Smartphone Refurbishment

Suitable for refurbishment companies requiring consistent battery performance before devices are tested, graded and prepared for resale.

Mobile Phone Parts Wholesale

Provides wholesalers with a BLP-series replacement battery for supplying professional repair stores and regional resellers.

Repair Chain Supply

Suitable for repair chains requiring repeat purchasing, reliable specifications and consistent batch supply across multiple locations.

OEM and Private Label Projects

ESC supports customers developing their own replacement battery brands with customized packaging, labeling and long-term factory supply.

BLP791 Replacement Battery vs Original Battery

Comparison ESC BLP791 Replacement Battery Original Battery
Product Type Aftermarket replacement battery Factory-installed battery
Typical Capacity 4015mAh Original device specification
Rated Capacity 3920mAh Original device specification
Nominal Voltage 3.87V Original device specification
Battery Chemistry Li-ion Polymer Li-ion Polymer
Main Application Repair and refurbishment Original assembly / official repair
Wholesale Availability Available Limited through official channels
Mixed-Model Orders Supported Generally limited
OEM Branding Available Not available
Private Label Available Not available
B2B Supply Designed for wholesale purchasing Official-channel dependent
Warranty 12-month supplier warranty Subject to original service policy

Buyer Value

For Repair Shops

Maintain a reliable BLP791 replacement battery option for professional repairs while sourcing from a supplier focused on stable quality and after-sales support.

For Refurbishers

Use consistent battery specifications for refurbishment workflows where battery condition can affect device testing, grading and resale value.

For Wholesalers

Combine BLP791 with other OPPO battery models in mixed-model orders to simplify sourcing, inventory planning and supplier management.

For Distributors

Expand your mobile phone replacement battery catalog with an established BLP-series model supported by OEM and wholesale supply.

FAQ

  1. What is the capacity of the BLP791 replacement battery?

The BLP791 has a typical capacity of 4015mAh and a rated capacity of 3920mAh.

  1. What is the nominal voltage of the BLP791 battery?

The nominal voltage is 3.87V, with a limit charge voltage of 4.45V.

  1. What type of battery is BLP791?

BLP791 is a rechargeable Li-ion polymer battery designed for smartphone replacement and professional repair applications.

  1. What is the energy rating of the BLP791 battery?

The typical energy rating is 15.53Wh, while the rated energy is 15.17Wh.

  1. Are you an OPPO BLP791 battery supplier?

Yes. ESC is an OPPO BLP791 battery supplier serving repair shops, refurbishers, wholesalers and distributors with B2B battery solutions.

  1. Are you a replacement battery manufacturer?

ESC supplies mobile phone replacement batteries and supports wholesale, OEM and private label battery projects for professional B2B buyers.

  1. Can I buy BLP791 batteries wholesale?

Yes. Wholesale orders, repeat purchasing and mixed-model battery sourcing are supported according to customer requirements.

  1. What quality tests are performed before shipment?

Batteries are checked for capacity, voltage, internal resistance and aging performance before shipment to support consistent batch quality.

  1. Do you provide OEM and private label services?

Yes. OEM branding, customized packaging and private label solutions are available for qualified wholesalers and distributors.

  1. How can BLP791 batteries be shipped internationally?

Battery shipments can be arranged by air, sea or railway depending on destination, quantity and transportation requirements. UN38.3 and MSDS documentation can be provided for applicable shipments.

Our Factory

Since 2016, ESC has served B2B buyers with replacement batteries and charging products. We offer 3,000+ models for iPhone, Android phones, tablets and laptops, with flexible MOQs, lead times within seven days and a customer-reported defect rate below 1%. Since 2022, we have developed private-mold fast-charging power banks with broad protocol compatibility and thermal control. ESC supports brands, wholesalers, refurbishers and repair chains with OEM/ODM, certification and production services.

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Our Certificates

ESC certificate 1
ESC certificate 2
ESC certificate 3
ESC certificate 4

OEM & ODM Battery Order Process

  1. 01

    Customer Inquiry & Requirement Confirmation

    Confirm battery models, capacity, quantity, target market, certification and customization requirements.

  2. 02

    Quotation

    Provide a detailed quotation based on product specifications, order quantity, packaging and delivery requirements.

  3. 03

    Customization Details Confirmation

    Confirm customized labels, barcodes, silk-screen artwork, logo printing, packaging and other branding details.

  4. 04

    Order Confirmation

    Finalize product specifications, quantities, unit prices, payment terms, delivery schedule and shipping method.

  5. 05

    Deposit Payment

    The customer pays the agreed deposit so that materials and production can be arranged.

  6. 06

    Production Arrangement

    Arrange material preparation, battery assembly, quality inspection, aging tests, packaging and order completion.

  7. 07

    Balance Payment

    The customer pays the remaining balance after production is completed and the order details are confirmed.

  8. 08

    Shipment

    Arrange shipment by an approved air, sea, railway or express channel according to the destination and order requirements.

  9. 09

    Delivery & Receipt Follow-Up

    Provide shipping documents and tracking information, and follow up until the customer receives the goods.

  10. 10

    24/7 After-Sales Support

    Provide responsive technical assistance, quality-issue analysis and after-sales solutions after delivery.

How to Choose a Reliable Replacement Battery Supplier

Evaluate cell quality, testing capability, assembly details, production consistency and installation support before purchasing smartphone, tablet or laptop replacement batteries.

Verify Battery Model Coverage and Compatibility

Choose a supplier with broad coverage for smartphone, tablet and laptop batteries. Confirm the original battery code, device model, connector position, dimensions, rated voltage and system compatibility before ordering.

A supplier with an established model database can reduce incorrect shipments, installation problems and compatibility-related returns.

1

Check the Quality of Cells and Electronic Components

Battery quality starts with the raw materials. Ask the supplier about:

  • Battery-cell manufacturer and grade
  • Actual cell capacity
  • Cell cycle life
  • PCB and protection-chip solution
  • Connector and flex-cable quality
  • Traceability of key components

Reliable suppliers should use graded cells rather than selecting components only by the lowest price.

2

Review Incoming Material Inspection and Cell Grading

Cells should be tested and grouped according to:

  • Capacity
  • Voltage
  • Internal resistance
  • Self-discharge
  • Thickness and dimensions
  • Appearance

Proper cell grading improves consistency between batteries from the same production batch and reduces abnormal runtime, swelling and early failure.

3

Require Complete Electrical and Compatibility Testing

A professional supplier should test more than the open-circuit voltage. Quality verification should include:

  • Charging and discharging performance
  • Actual capacity
  • Battery current
  • Protection functions
  • Cycle count and battery data
  • Fuel-gauge parameters
  • Device compatibility
  • Temperature performance

Professional battery testers can perform charging, discharging, current calibration and precise parameter comparison, helping identify batteries whose measured data does not match the approved specification.

4

Evaluate Automation and Production Consistency

Automated production processes normally provide better consistency and higher capacity than heavily manual assembly.

Important processes may include:

  • Automatic cell sorting
  • Automatic welding
  • Automatic PCB testing
  • Automatic adhesive application
  • Barcode traceability
  • In-line functional inspection

Automation does not replace quality control, but it helps reduce variation caused by manual positioning, welding and assembly.

5

Inspect Assembly Details

Small assembly details have a major effect on installation efficiency and product reliability.

A well-finished battery should include:

  • Pre-applied battery adhesive
  • Dust-proof protective film
  • Protective sleeve around the flex cable
  • Fixed flex-cable position
  • Stable connector orientation
  • No loose or moving battery cable
  • Clean edges and accurate dimensions

These details reduce flex-cable damage, dust contamination, installation movement and incorrect connector alignment.

6

Confirm In-Process and Final Quality Inspection

The supplier should conduct inspection throughout production rather than checking only finished goods.

Recommended checkpoints include:

  • Incoming material inspection
  • Cell grading
  • PCB and BMS testing
  • Welding inspection
  • Assembly inspection
  • Capacity testing
  • Aging testing
  • Appearance inspection
  • Packaging inspection
  • Final random inspection

Ask whether inspection data can be traced back to the production batch.

7

Compare Capacity Claims, Defect Rate and Certification

Do not select batteries based only on the highest printed capacity.

A credible supplier should provide:

  • Tested capacity data
  • Clear rated voltage and energy
  • Customer-reported defect rate
  • Warranty policy
  • CE, RoHS, FCC, MSDS and UN38.3 documentation where applicable
  • Model-specific certification support

Exaggerated capacity labels without matching cell space, weight and test data are a significant purchasing risk.

8

Follow Correct Battery Installation Procedures

Even a qualified battery can fail if it is installed incorrectly.

Before installation:

  • Discharge the original battery below 25%
  • Power off the device
  • Use non-metallic opening tools
  • Disconnect the battery before handling other internal components
  • Avoid puncturing, bending or crushing the cell
  • Remove the protective film from the adhesive correctly
  • Align the battery and connector before pressing it into place
  • Confirm that the flex cable is not folded, stretched or trapped
  • Reinstall screws and brackets in their original positions
  • Test charging, battery recognition and device functions before final sealing

The installation guide specifically warns that a charged lithium-ion battery may catch fire or explode if punctured, and instructs technicians to power off the phone before disassembly.

9

Contact Us

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Minimum Order: 10 Units
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