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OPPO BLP851 Replacement Battery 5000mAh for Mobile Phone Repair

OPPO BLP851 Replacement Battery with 5000mAh typical capacity, 4880mAh rated capacity and 3.87V voltage. For repair shops, refurbishers and wholesale buyers.

OPPO BLP851 Replacement Battery 5000mAh for Mobile Phone Repair

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Why Choose ESC OPPO BLP851 Replacement Battery

Professional OPPO Replacement Battery Manufacturer

ESC supplies mobile phone replacement batteries for repair shops, refurbishment companies, wholesalers and distributors.

The OPPO BLP851 replacement battery is designed for professional aftermarket repair applications requiring stable battery specifications, consistent batch quality and long-term B2B supply.

5000mAh Typical Capacity

The BLP851 battery provides:

  • Typical Capacity: 5000mAh / 19.35Wh
  • Rated Capacity: 4880mAh / 18.88Wh

These specifications make the battery suitable for professional repair, refurbishment and wholesale markets.

3.87V Li-ion Polymer Battery

The OPPO BLP851 replacement battery uses rechargeable Li-ion polymer battery technology with:

  • Nominal Voltage: 3.87V
  • Charge Limit Voltage: 4.45V

Factory Quality Control

ESC replacement batteries undergo multiple inspections before shipment:

✓ Capacity Testing
✓ Voltage Testing
✓ Internal Resistance Testing
✓ Charging Performance Testing
✓ Aging Testing

OEM & Wholesale Support

ESC supports professional B2B buyers with:

✓ Mixed Model Orders
✓ OEM Branding
✓ Customized Packaging
✓ Private Label Projects
✓ Wholesale Supply
✓ Distributor Cooperation

Quick Specifications

Specification Details
Product Type Mobile Phone Replacement Battery
Battery Model BLP851
Brand Compatibility OPPO
Typical Capacity 5000mAh
Typical Energy 19.35Wh
Rated Capacity 4880mAh
Rated Energy 18.88Wh
Nominal Voltage 3.87V
Charge Limit Voltage 4.45V
Battery Chemistry Rechargeable Li-ion Polymer
Application Mobile Phone Repair & Refurbishment
Warranty 12 Months
Defective Rate ≤1%
OEM Support Available
Mixed Model Orders Supported

OPPO BLP851 replacement battery

What Is OPPO BLP851 Replacement Battery?

The OPPO BLP851 replacement battery is a rechargeable Li-ion polymer battery designed for professional mobile phone repair, refurbishment and aftermarket distribution.

It features a 5000mAh typical capacity, 4880mAh rated capacity, 3.87V nominal voltage and 4.45V charge limit voltage.

It is suitable for repair shops, wholesalers and distributors sourcing BLP851 batteries for professional replacement applications.

Key Features

5000mAh Typical Capacity

The battery provides 5000mAh / 19.35Wh typical capacity for professional replacement applications.

4880mAh Rated Capacity

The rated specification is 4880mAh / 18.88Wh, giving B2B buyers clear technical data for purchasing and product listing.

3.87V Nominal Voltage

Designed with a 3.87V nominal voltage and 4.45V charge limit voltage.

Rechargeable Li-ion Polymer Battery

Uses rechargeable Li-ion polymer battery technology for mobile phone repair and refurbishment applications.

Professional B2B Supply

Suitable for repair shops, refurbishment companies, wholesalers, distributors and private label battery brands.

Compatible Battery Model

Battery Code Compatible Application
BLP851 OPPO mobile phones using BLP851 battery

Always confirm the original battery code, connector shape and physical dimensions before installation.

Applications

Mobile Phone Repair Shops

Suitable for technicians replacing aged, damaged or low-performance OPPO BLP851 batteries.

Refurbishment Companies

Designed for professional refurbishment projects where stable battery specifications and consistent batch quality are required.

Mobile Phone Parts Wholesalers

Suitable for wholesalers expanding their OPPO replacement battery product range.

Distributors

Provides distributors with another 5000mAh-class OPPO replacement battery for professional repair customers.

OEM Battery Brands

ESC supports customized branding, private label packaging and long-term battery supply.

OPPO BLP851 Replacement Battery vs Generic Replacement Battery

Comparison ESC BLP851 Battery Generic Replacement Battery
Battery Model BLP851 Depends on Supplier
Typical Capacity 5000mAh Depends on Supplier
Rated Capacity 4880mAh Depends on Supplier
Nominal Voltage 3.87V Depends on Supplier
Rated Energy 18.88Wh Depends on Supplier
Battery Chemistry Li-ion Polymer Depends on Supplier
Quality Testing Multi-Step QC Depends on Supplier
OEM Support Available Depends on Supplier
Wholesale Supply Supported Depends on Supplier

Buyer Value

For Repair Shops

The OPPO BLP851 replacement battery provides clear capacity and voltage specifications for professional replacement services.

For Refurbishers

Its 5000mAh typical capacity and defined electrical specifications make it suitable for batch refurbishment projects.

For Wholesalers

BLP851 expands the range of OPPO battery models available for mixed-model wholesale purchasing.

For Distributors

ESC supports stable B2B supply for distributors serving repair shops, parts retailers and refurbishment companies.

For OEM Brands

Private label buyers can customize logos, packaging and product presentation for their own mobile phone battery lines.

FAQ

1. What is the capacity of the OPPO BLP851 battery?

The battery has a 5000mAh typical capacity and 4880mAh rated capacity.

2. What is the voltage of the BLP851 battery?

The nominal voltage is 3.87V.

3. What is the charge limit voltage?

The charge limit voltage is 4.45V.

4. What is the rated energy of the BLP851 battery?

The rated energy is 18.88Wh.

5. What is the typical energy?

The typical energy is 19.35Wh.

6. Is this an OPPO BLP851 replacement battery?

Yes. The OPPO BLP851 replacement battery is designed for compatible OPPO mobile phones using the BLP851 battery code.

7. What battery chemistry does BLP851 use?

It uses a rechargeable Li-ion polymer battery.

8. Who should buy this battery?

It is suitable for repair shops, refurbishment companies, mobile phone battery wholesalers, distributors and OEM battery brands.

9. Do you support mixed-model wholesale orders?

Yes. ESC supports mixed-model purchasing for professional B2B customers.

10. Do you provide OEM and private label service?

Yes. ESC supports OEM branding, customized packaging and private label mobile phone battery projects.

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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