Home/Products/Diagnosable iPhone Battery/iPhone 15 Diagnosable Replacement Battery 3349mAh Internal Li-ion Battery for Repair Shops

Factory direct iPhone 15 diagnosable replacement battery with 3349mAh capacity. High-quality Li-ion battery designed for repair shops, distributors, and OEM customers with stable supply and customization support.

iPhone 15 Diagnosable Replacement Battery 3349mAh Internal Li-ion Battery for Repair Shops

‌
‌
‌
‌
‌

Why Choose our iPhone 15 Diagnosable Replacement Battery?

We provide factory direct OEM replacement battery solutions for global repair businesses and distributors.

Professional Smartphone Battery Manufacturing Experience

Professional lithium battery manufacturing with extensive experience in supplying replacement batteries for smartphone repair and refurbishment markets.

Stable Supply of iPhone Replacement Batteries

Reliable production capacity and long-term supply ensure consistent availability for wholesalers, distributors, and repair chains.

High-Quality Li-ion Cells with Strict QC Control

Premium lithium polymer cells combined with comprehensive quality inspection provide stable performance, safety, and long service life.

OEM Logo, Packaging, and Customized Battery Solutions

Support OEM branding, private-label packaging, barcode labels, and customized battery solutions for distributors and repair businesses.

Reliable Bulk Supply for Repair Shops and Wholesalers

Factory-direct supply with competitive pricing for smartphone repair centers, spare parts distributors, wholesalers, and refurbishing companies.

Support Global Shipping with Professional Battery Handling

Professional battery packaging and worldwide logistics support via express, air freight, and sea freight.

Quick Specifications

Item	Specification
Compatible Model	iPhone 15
Battery Type	Li-ion Polymer Battery
Capacity	3349mAh
Voltage	3.87V
Energy	12.98Wh
Battery Function	Diagnosable Replacement Battery
Quality Control	100% QC Inspection
Defect Rate	≤1%
Lead Time	7–15 Working Days
Warranty	12 Months
MOQ	Negotiable
Certification	CE, RoHS, UN38.3, MSDS
Shipping Method	Air Shipping / Express / Sea Shipping

What Is the iPhone 15 Diagnosable Replacement Battery?

The iPhone 15 Diagnosable Replacement Battery is a high-quality Li-ion replacement battery designed for professional smartphone repair applications. It provides stable power performance, accurate battery detection, and reliable compatibility for iPhone 15 devices. This OEM replacement battery is manufactured for repair shops, distributors, wholesalers, and private-label customers requiring factory direct supply.

Key Features

1. Diagnosable Battery Solution

Supports battery detection and professional repair workflows.

2. 3349mAh High Capacity

Provides stable runtime performance similar to the original battery specification.

3. Premium Li-ion Polymer Cell

High energy density with reliable safety performance.

4. Factory Direct Supply

Suitable for bulk orders, repair chains, and distributors.

5. OEM Customization Support

Custom packaging, logo, and battery solutions available.

Compatible Models

Device Model	Battery Application
iPhone 15	Direct Replacement Battery

Applications

Smartphone Repair & Replacement Market

This iPhone 15 replacement battery is designed for:

Mobile phone repair shops
Smartphone refurbishing companies
Electronics distributors
Wholesale spare parts suppliers
OEM/private label battery brands
Professional repair technicians

Original Battery vs Replacement Battery Comparison

Comparison	Original Battery	Our Diagnosable Replacement Battery
Application	iPhone 15 factory battery	iPhone 15 repair replacement
Battery Type	Li-ion Polymer	Li-ion Polymer
Capacity	Approx. 3349mAh	3349mAh
Repair Usage	Limited supply channel	Designed for repair market
Supply Availability	Device manufacturer supply chain	Factory direct bulk supply
Customization	Not available	OEM logo & packaging available
Wholesale Support	Limited	Available for distributors

FAQ

1. Is this battery compatible with iPhone 15?

Yes. This replacement battery is designed specifically for iPhone 15 repair replacement applications.

2. What is the capacity of this iPhone 15 battery?

The battery capacity is 3349mAh with a rated voltage of 3.87V.

3. What does "diagnosable battery" mean?

A diagnosable battery is designed to support professional repair testing and battery status detection processes.

4. Can this battery be used by repair shops?

Yes. It is suitable for smartphone repair shops, refurbishers, and spare parts distributors.

5. Do you provide OEM battery customization?

Yes. We support OEM logo printing, customized packaging, private-label solutions, and bulk production services.

6. What quality tests are performed before shipment?

Each battery undergoes QC inspection including appearance inspection, voltage testing, capacity testing, and safety verification before shipment.

7. What certifications are available?

Available certifications include CE, RoHS, UN38.3, and MSDS depending on customer requirements.

8. What is the minimum order quantity?

MOQ can be negotiated according to customer requirements, order volume, and customization needs.

9. How long is the delivery time?

Standard production lead time is usually 7–15 working days depending on order quantity and shipping method.

10. Do you ship internationally?

Yes. We provide worldwide shipping solutions via express delivery, air freight, and sea freight for repair businesses, distributors, wholesalers, and OEM customers.

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.

Contact Us

For free sample,please click here.

For instant communication,please click here.

For our home page, please click here.