Home/Products/Original Capacity iPhone Replacement Batteries/iPhone 16 Pro Max Replacement Battery 4676mAh Li-ion Polymer Battery OEM Supply

Factory direct iPhone 16 Pro Max replacement battery supplier providing high-quality Li-ion polymer batteries with OEM/ODM customization, strict QC inspection, stable supply, competitive wholesale pricing, and global shipping support.

iPhone 16 Pro Max Replacement Battery 4676mAh Li-ion Polymer Battery OEM Supply

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Why Choose Our iPhone 16 Pro Max Replacement Battery?

Professional OEM Lithium Battery Manufacturer

We are a professional OEM lithium battery manufacturer providing reliable iPhone replacement battery solutions for repair shops, distributors, wholesalers, and private-label brands worldwide.

Factory Direct Smartphone Battery Manufacturing

Factory direct smartphone battery manufacturing with stable production capacity
High-quality Li-ion polymer cells with consistent performance
Strict quality control including capacity, voltage, charging, and safety testing
OEM/ODM customization for logo, packaging, and private-label projects
Competitive wholesale pricing for global repair channels
Fast production lead time and professional export shipping support
CE, RoHS, MSDS, and UN38.3 compliance documents available

Quick Specifications

Item	Specification
Compatible Model	iPhone 16 Pro Max
Battery Type	Li-ion Polymer Battery
Battery Capacity	4676mAh
Nominal Voltage	3.875V
Charging Voltage	4.50V
Energy	18.112Wh
Battery Condition	Brand New Replacement Battery
Quality Control	Capacity Test / Voltage Test / Safety Inspection
Defect Rate	≤1%
Lead Time	7-15 Working Days
Warranty	12 Months
Certification	CE, RoHS, MSDS, UN38.3
MOQ	Negotiable
Shipping Method	Express / Air Freight / Sea Freight

What Is iPhone 16 Pro Max Replacement Battery?

Professional Replacement Battery Solution for Repair Businesses

The iPhone 16 Pro Max Replacement Battery is a high-quality Li-ion polymer battery designed for professional smartphone repair businesses, distributors, wholesalers, and private-label brands. With 4676mAh capacity, 3.875V nominal voltage, and stable power performance, this OEM replacement battery helps restore device battery life while providing reliable quality, consistent supply, and customization options for global B2B customers.

Key Features

1. High Capacity Li-ion Battery

4676mAh high capacity provides reliable power output and extended smartphone usage time, helping repair customers restore battery performance close to the original device experience.

2. Stable Battery Performance

Premium lithium polymer cells ensure consistent voltage output, charging efficiency, and long-term reliability for professional replacement applications.

3. Professional Quality Control

Each battery undergoes strict inspection including appearance check, capacity testing, voltage testing, charging performance testing, and safety verification before shipment.

4. OEM & ODM Customization

Support customized logo, packaging, labels, and private-brand battery solutions for distributors, wholesalers, and repair channel customers.

5. Factory Direct Wholesale Supply

Designed for repair shops, smartphone refurbishers, distributors, wholesalers, and large-volume replacement battery projects with stable supply capability.

Compatible Models

Device Model	Compatibility
iPhone 16 Pro Max	Compatible Replacement Battery

Applications

Smartphone Repair & Replacement Market

This iPhone 16 Pro Max replacement battery is designed for:

Mobile phone repair shops
Smartphone refurbishment companies
Electronics distributors
Replacement battery wholesalers
Repair chain suppliers
OEM/private-label battery brands
Online mobile parts sellers

It provides a stable battery replacement solution for businesses requiring reliable inventory, consistent quality, and professional supply support.

Original Battery vs Replacement Battery Comparison

Comparison Item	Original Battery	Our Replacement Battery
Battery Type	Li-ion Polymer Battery	Li-ion Polymer Battery
Compatible Device	iPhone 16 Pro Max	iPhone 16 Pro Max
Capacity	Approx. 4676mAh	4676mAh
Application	Factory-installed device battery	Professional repair replacement
Supply Channel	Device manufacturer supply chain	Factory direct battery supplier
Bulk Purchase	Limited availability	Wholesale support
Custom Packaging	Not available	OEM/ODM supported
Quality Control	Factory standard	Full QC inspection before shipment
Business Usage	Device production	Repair, refurbishment, distribution
Warranty Support	Manufacturer policy	12-month supplier warranty

FAQ

1. Is this iPhone 16 Pro Max replacement battery compatible with the original device?

Yes. This replacement battery is designed specifically for iPhone 16 Pro Max repair applications and matches the original battery size and specifications.

2. What is the capacity of this iPhone 16 Pro Max battery?

The battery capacity is 4676mAh with a nominal voltage of 3.875V and energy of approximately 18.112Wh.

3. Is this an original Apple battery?

No. This is a high-quality aftermarket replacement battery manufactured for professional repair and replacement markets.

4. Is this battery suitable for repair shops?

Yes. It is designed for smartphone repair technicians, refurbishers, distributors, and wholesale battery suppliers.

5. Can you provide bulk orders?

Yes. We support wholesale orders with stable production capacity and competitive factory-direct pricing.

6. Do you provide OEM customization?

Yes. OEM logo, customized packaging, labels, and private-label solutions are available for global customers.

7. How do you ensure battery quality?

Each battery undergoes capacity testing, voltage testing, charging performance testing, appearance inspection, and safety checks before shipment.

8. What certifications are available?

CE, RoHS, MSDS, and UN38.3 certification documents can be provided according to customer requirements.

9. What is the warranty period?

We provide a 12-month warranty for quality-related issues and professional after-sales support.

10. Can you ship iPhone replacement batteries internationally?

Yes. We provide global shipping solutions through express, air freight, and sea freight channels for overseas 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.

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