Home/Products/Diagnosable iPhone Battery/iPhone 12 / 12 Pro Diagnosable Replacement Battery 2815mAh Smart Recognition Li-ion Battery Supplier

Factory direct iPhone 12 / 12 Pro replacement battery with diagnosable smart recognition technology. High-quality Li-ion cells, stable performance, OEM supply, bulk orders, and professional repair solutions.

iPhone 12 / 12 Pro Diagnosable Replacement Battery 2815mAh Smart Recognition Li-ion Battery Supplier

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Why Choose our the iPhone 12 / iPhone 12 Pro Diagnosable Replacement Battery?

Why Choose Our iPhone 12 Replacement Battery?

We are a professional OEM battery manufacturer providing diagnosable replacement batteries for smartphone repair businesses, distributors, and wholesalers.

Factory Direct Supply with Stable Production Capacity

Factory-direct manufacturing provides competitive pricing, reliable production capacity, and stable supply solutions for repair shops, distributors, and global B2B customers.

High-Quality Li-ion Battery Cells

Built with premium lithium-ion battery cells to deliver reliable cycle performance, stable power output, and consistent daily usage.

Smart Recognition Technology

Designed with diagnosable smart recognition technology to improve device compatibility and support professional repair workflows.

Strict Quality Control with Functional Testing

Each battery undergoes functional testing, voltage inspection, capacity verification, and quality checks before shipment to ensure stable performance.

OEM/ODM Customization Support

Support customized packaging, OEM logo printing, private-label solutions, and bulk production services for distributors and repair businesses.

Global Shipping Support with Export Compliance

Provide professional export packaging and international shipping solutions with CE, MSDS, and UN38.3 documentation support.

Reliable Smartphone Battery Supply Solutions

We help repair shops and distributors reduce supply risks through stable inventory, consistent quality, and professional OEM replacement battery solutions.

Quick Specifications

Item	Specification
Battery Type	Li-ion Replacement Battery
Compatible Models	iPhone 12 / iPhone 12 Pro
Capacity	2815mAh
Voltage	3.83V
Energy	10.78Wh
Battery Feature	Diagnosable & Smart Recognition
Battery Condition	Brand New Replacement Battery
Quality Control	100% Functional Testing
Certification	CE, MSDS, UN38.3
Warranty	12 Months
MOQ	Negotiable
Lead Time	7–15 Working Days
Shipping Method	Express / Air Freight / Sea Freight

What Is the iPhone 12 / iPhone 12 Pro Diagnosable Replacement Battery?

An iPhone 12 replacement battery is a high-quality Li-ion battery designed for replacing worn-out original batteries in iPhone 12 and iPhone 12 Pro devices. This diagnosable battery features smart recognition technology, stable power output, reliable safety protection, and excellent compatibility. As an OEM battery supplier, we provide bulk supply, custom packaging, and professional battery solutions for repair shops, distributors, and wholesalers worldwide.

Key Features

1. Diagnosable Smart Recognition

Supports improved system recognition and professional repair workflows, helping technicians complete battery replacement more efficiently.

2. High Capacity Performance

2815mAh capacity provides stable power output, reliable runtime, and extended daily usage performance.

3. Safe & Reliable Protection

Built-in protection system helps prevent overcharge, over-discharge, over-current, and short-circuit risks.

4. Perfect Compatibility

Designed specifically for iPhone 12 and iPhone 12 Pro replacement applications with accurate battery dimensions and connector compatibility.

5. OEM Factory Supply

Supports bulk orders, private-label packaging, OEM branding, and customized battery solutions for global customers.

Compatible Models

Device Model	Battery Compatibility
iPhone 12	Compatible
iPhone 12 Pro	Compatible

Applications

Smartphone Repair Market

Designed for professional mobile phone repair shops, refurbishment companies, and aftermarket distributors requiring reliable iPhone replacement batteries.

Wholesale & Distribution

Suitable for battery wholesalers, electronics suppliers, and repair chain businesses looking for stable OEM battery supply.

Refurbishment Business

Ideal for refurbished smartphone providers needing consistent quality replacement battery solutions.

iPhone 12 Original Battery vs Replacement Battery Comparison

Feature	Original Battery	Our Diagnosable Replacement Battery
Battery Type	Original Li-ion Battery	Premium Li-ion Replacement Battery
Capacity	2815mAh	2815mAh
Device Compatibility	iPhone 12 / 12 Pro	iPhone 12 / 12 Pro
Smart Recognition	Original System Support	Diagnosable Smart Recognition Technology
Supply Source	Limited Original Supply	Factory Direct OEM Supply
MOQ	Not Available	Bulk Order Support
Custom Packaging	No	OEM/ODM Available
Wholesale Supply	Limited	Stable Global Supply
Certification	Depends on Region	CE / MSDS / UN38.3 Available
Warranty	Manufacturer Policy	12 Months Support

FAQ

1. Is this iPhone 12 replacement battery compatible with iPhone 12 Pro?

Yes. This battery is designed for both iPhone 12 and iPhone 12 Pro replacement applications.

2. Does this battery support battery recognition?

Yes. The battery features diagnosable smart recognition technology designed for professional repair applications.

3. What is the capacity of this iPhone 12 battery?

The replacement battery capacity is 2815mAh with a nominal voltage of 3.83V.

4. Are you a factory or trading company?

We are a professional battery manufacturer providing OEM replacement batteries, customization services, and bulk supply solutions.

5. Can you provide OEM packaging?

Yes. We support customized packaging, private-label solutions, OEM logos, and branding services for distributors.

6. What certifications are available for this battery?

We provide export-related certifications including CE, MSDS, and UN38.3 according to customer requirements.

7. What is the MOQ for wholesale orders?

MOQ can be negotiated according to order quantity, packaging requirements, customization needs, and purchasing plans.

8. How do you ensure battery quality?

Each battery undergoes functional testing, voltage testing, capacity verification, appearance inspection, and quality control before shipment.

9. Do you provide worldwide shipping?

Yes. We support international shipping through express delivery, air freight, and sea freight solutions.

10. Can repair businesses buy this battery in bulk?

Yes. This product is designed for repair shops, refurbishers, wholesalers, distributors, and OEM customers requiring stable battery supply.

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.

Our Certificates

OEM & ODM Battery Order Process

01
Customer Inquiry & Requirement Confirmation
Confirm battery models, capacity, quantity, target market, certification and customization requirements.
02
Quotation
Provide a detailed quotation based on product specifications, order quantity, packaging and delivery requirements.
03
Customization Details Confirmation
Confirm customized labels, barcodes, silk-screen artwork, logo printing, packaging and other branding details.
04
Order Confirmation
Finalize product specifications, quantities, unit prices, payment terms, delivery schedule and shipping method.
05
Deposit Payment
The customer pays the agreed deposit so that materials and production can be arranged.
06
Production Arrangement
Arrange material preparation, battery assembly, quality inspection, aging tests, packaging and order completion.
07
Balance Payment
The customer pays the remaining balance after production is completed and the order details are confirmed.
08
Shipment
Arrange shipment by an approved air, sea, railway or express channel according to the destination and order requirements.
09
Delivery & Receipt Follow-Up
Provide shipping documents and tracking information, and follow up until the customer receives the goods.
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.

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.

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.

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.

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.

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.

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.

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.

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.

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