Home/Products/Original Capacity iPhone Replacement Batteries/iPhone 12 / iPhone 12 Pro Replacement Battery

Professional OEM iPhone 12 and iPhone 12 Pro replacement battery supplier providing Li-ion batteries, stable quality, bulk supply, OEM customization, and global shipping solutions.

iPhone 12 / iPhone 12 Pro Replacement Battery

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

Professional iPhone Battery Manufacturer

We are a professional OEM lithium battery manufacturer providing reliable iPhone 12 and iPhone 12 Pro replacement batteries for repair shops, distributors, wholesalers, and global B2B customers.

Factory Direct Battery Supply

Factory-direct manufacturing provides competitive pricing, stable production capacity, flexible MOQ, and reliable supply solutions for smartphone repair businesses.

High-Quality Lithium-ion Battery Cells

Using premium lithium-ion cells to provide stable voltage output, consistent capacity performance, reliable safety, and long service life.

Diagnosable Battery Solution

Designed with smart recognition technology to support professional repair workflows and improve battery replacement compatibility.

Strict Quality Control

Each battery undergoes capacity testing, voltage testing, charging and discharging verification, safety inspection, and final quality inspection before shipment.

OEM & ODM Customization

Support OEM logo printing, customized packaging, private-label solutions, barcode labels, and customized battery requirements for global customers.

Global Export Capability

Provide professional export packaging and worldwide shipping solutions with certification support including CE, MSDS, and UN38.3.

Quick Specifications

Item	Specification
Battery Type	Li-ion Replacement Battery
Compatible Models	iPhone 12 / iPhone 12 Pro
Battery Capacity	2815mAh
Nominal 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 Replacement Battery?

The iPhone 12 / iPhone 12 Pro Replacement Battery is a high-quality lithium-ion battery designed for replacing worn-out original batteries in iPhone 12 and iPhone 12 Pro devices. This OEM replacement battery provides stable power output, reliable safety protection, and excellent compatibility for professional repair applications. Manufactured with strict quality control, it supports bulk supply, OEM customization, and global distribution for repair businesses and wholesalers.

Key Features

1. Diagnosable Smart Recognition

Supports professional battery detection and repair workflows, helping technicians improve replacement efficiency.

2. Stable 2815mAh Battery Performance

Provides reliable power output and consistent battery life for daily smartphone usage.

3. Premium Li-ion Battery Cells

Built with high-quality lithium-ion cells for stable charging performance, safety protection, and long cycle life.

4. Professional Replacement Design

Designed specifically for iPhone 12 and iPhone 12 Pro replacement applications with accurate 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	Compatibility
iPhone 12	Compatible Replacement Battery
iPhone 12 Pro	Compatible Replacement Battery

Applications

Smartphone Repair & Replacement Market

Designed for:

Mobile phone repair shops
Smartphone refurbishment companies
Electronics distributors
Replacement battery wholesalers
Repair chain suppliers
OEM/private label battery brands
Professional smartphone service providers

Wholesale Battery Distribution

Suitable for global battery distributors, mobile phone accessory suppliers, and repair businesses requiring stable inventory and reliable OEM battery supply.

Refurbishment Business

Ideal for refurbished smartphone companies needing consistent-quality replacement battery solutions.

iPhone 12 / iPhone 12 Pro Original Battery vs Replacement Battery Comparison

Feature	Original Battery	Our Diagnosable Replacement Battery
Battery Type	Original Li-ion Battery	Premium Li-ion Replacement Battery
Compatibility	iPhone 12 / iPhone 12 Pro	iPhone 12 / iPhone 12 Pro
Capacity	2815mAh	2815mAh
Voltage	3.83V	3.83V
Smart Recognition	Original System Support	Diagnosable Smart Recognition Technology
Supply Source	Device Manufacturer	Factory Direct Supplier
MOQ	Limited Availability	Flexible Wholesale MOQ
Custom Packaging	Not Available	OEM/ODM Supported
Wholesale Supply	Limited	Stable Global Supply
Certification	Region Dependent	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 with matching size and connector specifications.

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 and energy of approximately 10.78Wh.

4. Are you a factory or trading company?

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

5. Can you provide OEM packaging?

Yes. We support customized packaging, OEM logos, private-label solutions, barcode labels, 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 and shipping regulations.

7. What is the MOQ for wholesale orders?

MOQ can be negotiated according to order quantity, packaging requirements, customization needs, and long-term cooperation plans.

8. How do you ensure battery quality?

Each battery undergoes functional testing, capacity testing, voltage testing, appearance inspection, and safety verification 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 and professional support.

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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