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iPhone 11 Pro Max 4500mAh Higher Capacity Replacement Battery

Factory-direct iPhone 11 Pro Max battery supplier offering 4500mAh Li-ion batteries, OEM branding, private-label packaging, low defect rates and global wholesale shipping.

iPhone 11 Pro Max 4500mAh Higher Capacity Replacement Battery






Why Choose the iPhone 11 Pro Max 4500mAh Replacement Battery

Professional Battery Manufacturer

ESC is an iPhone replacement battery manufacturer serving repair shops, refurbishment companies, wholesalers, distributors and private-label battery brands. Its product range covers smartphone, tablet and laptop replacement batteries for international B2B buyers.

Factory-Direct Wholesale Supply

Buying from an OEM phone battery factory provides access to factory-direct pricing, repeat-order supply, mixed-model purchasing and customized packaging services.

Strict Quality Control

ESC states that batteries are tested individually before shipment through a multi-step inspection process. The company reports a production defect rate below 0.1%, helping wholesale buyers reduce avoidable returns and after-sales costs.

OEM and Private-Label Services

Customized battery printing, private-label packaging, barcode labels, neutral packaging and carton customization are available for distributors and aftermarket battery brands.

12-Month Warranty

The product is supplied with a 12-month warranty. ESC states that eligible defective products may be replaced with a subsequent order according to the agreed after-sales terms.

Global Lithium Battery Shipping

Express, air, sea, rail and road transportation options are available, subject to destination-country regulations, carrier acceptance and lithium battery documentation requirements.

Quick Specifications

Specification Details
Product Type Higher-capacity aftermarket replacement battery
Compatible Device iPhone 11 Pro Max
Compatible Model Numbers A2161, A2218, A2220
Rated Capacity 4500mAh
Nominal Voltage 3.83V
Battery Chemistry Li-ion battery
Battery Cell New pure-cobalt cell
Cycle Life Over 800 cycles under specified test conditions
Charging Time Approximately 1–3 hours, depending on charger and device condition
Working Temperature -10°C to 50°C
Protection Overcharge, over-discharge and short-circuit protection
Factory Defect Rate Stated as below 0.1%
Warranty 12 months
MOQ 20 pieces; confirm current commercial terms
OEM/ODM Battery printing, logo, label and packaging customization
Available Documents CE, RoHS, FCC, MSDS, UN38.3, PSE, IEC 62133 and related documents, subject to order confirmation
Shipping Methods Express, air freight, sea freight, rail and road freight
Country of Origin China

The battery specifications and commercial terms above are based on the current ESC product page. ESC lists multiple compliance documents, although the exact documents supplied should be confirmed for each order and destination.

Apple identifies A2161, A2220 and A2218 as the regional model numbers for the iPhone 11 Pro Max introduced in 2019.

iPhone 11 Pro Max battery supplier

What Is the iPhone 11 Pro Max 4500mAh Replacement Battery

The iPhone 11 Pro Max 4500mAh replacement battery is a high-capacity Li-ion battery for repair, refurbishment and wholesale distribution. Supplied by an iPhone replacement battery manufacturer and OEM phone battery factory, it supports private labeling, bulk orders and global shipping.

Key Features

1. 4500mAh Higher Capacity

The 4500mAh rated capacity is designed to provide extended operating time compared with lower-capacity aftermarket battery options. Actual runtime depends on device condition, software, signal strength, temperature and usage habits.

2. Model-Specific Compatibility

The battery is designed for the dimensions, connector location and electrical platform of the iPhone 11 Pro Max, including model numbers A2161, A2218 and A2220.

3. Multiple Safety Protections

The integrated protection circuit is designed to help protect against overcharging, over-discharging and short circuits during normal operation.

4. Quality Inspection Before Shipment

Appearance, connector condition, voltage, capacity and charge-discharge performance can be inspected before packing to improve batch consistency.

5. OEM and Wholesale Support

The product is available with custom battery printing, private-label packaging, neutral packaging and bulk-order services for B2B customers.

Compatible Models

Device Year Model Number Region Compatibility
iPhone 11 Pro Max 2019 A2161 Canada and United States Compatible
iPhone 11 Pro Max 2019 A2220 China mainland, Hong Kong and Macao Compatible
iPhone 11 Pro Max 2019 A2218 Other countries and regions Compatible
iPhone 11 Pro 2019 A2160, A2215, A2217 Multiple regions Not compatible
iPhone 11 2019 A2111, A2221, A2223 Multiple regions Not compatible

Apple confirms that the iPhone 11 Pro Max has a 6.5-inch display and uses model numbers A2161, A2220 and A2218. Similar product names or external designs do not guarantee battery compatibility.

Applications

Smartphone Repair Shops

Suitable for technicians replacing aged, damaged or low-performing batteries in compatible iPhone 11 Pro Max devices.

Phone Refurbishment Companies

Designed for refurbishment businesses preparing used devices for resale, corporate deployment or secondary-market distribution.

Mobile Phone Parts Wholesalers

Available for bulk purchasing by regional wholesalers, distributors and replacement-parts suppliers.

Multi-Location Repair Chains

Suitable for repair chains requiring standardized battery specifications, consistent packaging and repeat-order availability.

Private-Label Battery Brands

Supports businesses requiring custom printing, branded packaging, barcode labels and customized export cartons.

E-Commerce Replacement Parts Sellers

Suitable for online retailers that need neutral packaging, private labeling and model-specific product information.

Quality Control Process

Incoming Material Inspection

Battery cells, flex cables, connectors, protection boards and packaging materials are checked before production.

Electrical Performance Testing

Voltage, internal resistance, capacity and charge-discharge performance can be verified according to the agreed inspection standard.

Connector and Flex Inspection

The flex cable and connector are inspected for alignment, surface damage, contamination and deformation.

Appearance Inspection

The battery surface is checked for swelling, scratches, damaged insulation, printing defects and deformation.

Final Inspection Before Shipment

Finished batteries are inspected before packaging to improve batch consistency and reduce preventable warranty claims.

ESC states that its batteries are tested individually before shipment and that its quality-control process includes multiple inspection stages.

OEM and Private-Label Services

Custom Battery Printing

Add a private brand name, model number, capacity information, warning text or customer-supplied label design.

Custom Packaging

Choose neutral white packaging, branded retail boxes, blister trays, barcode labels and customized export cartons.

Barcode and SKU Management

Individual product labels, model codes, carton labels and warehouse barcodes can be created for distributors with multiple SKUs.

Sample Approval

Business buyers can request samples to verify fit, connector alignment, charging performance, capacity and packaging before mass production.

Mixed-Model Wholesale Orders

Different smartphone battery models may be combined in one wholesale order, subject to current MOQ and packaging requirements.

Purchase Verification Before Ordering

Confirm the Exact Device Model

Check that the phone is an iPhone 11 Pro Max rather than an iPhone 11 or iPhone 11 Pro.

Check the Model Number

Confirm that the device model number is A2161, A2218 or A2220 before ordering.

Confirm the Battery Specifications

Verify the requested capacity, nominal voltage, connector position, flex-cable structure and package contents.

Test a Sample

Wholesalers and refurbishment companies should test physical fit, charging behavior, battery temperature, discharge performance and packaging before approving a bulk order.

Confirm Required Documents

Ask which compliance and transport documents are required by the destination country, marketplace, carrier or customs authority.

Installation and Safety

Professional Installation Recommended

Battery replacement should be completed by a trained repair technician using appropriate tools and procedures.

Inspect the Battery Before Installation

Do not install a battery showing swelling, leakage, damaged insulation, a torn flex cable or a deformed connector.

Avoid Physical Damage

Do not bend, crush, puncture, disassemble, heat, burn or short-circuit the battery.

Test After Installation

Check charging behavior, operating temperature, battery stability and device functions before returning the phone to the end user.

Dispose of Used Batteries Responsibly

Used lithium batteries should be delivered to an approved battery recycling or electronic-waste collection facility.

ESC Replacement Battery vs Original Battery

Comparison Item ESC 4500mAh Replacement Battery Original Factory Battery
Product Type Aftermarket higher-capacity replacement battery Factory-installed battery
Compatible Device iPhone 11 Pro Max iPhone 11 Pro Max
Compatible Model Numbers A2161, A2218, A2220 A2161, A2218, A2220
Battery Chemistry Li-ion battery Built-in rechargeable lithium-ion battery
Published Capacity 4500mAh Apple does not publish a mAh value on its official technical specification page
Main Application Repair, refurbishment and aftermarket replacement Original device assembly or authorized service
Wholesale Supply Available Generally limited to authorized supply channels
OEM Branding Available Not available
Private-Label Packaging Available Not available
Neutral Packaging Available Depends on the service channel
Sample Testing Available for B2B buyers Depends on the authorized supply channel
Warranty 12-month supplier warranty Subject to Apple or service-provider terms
Best Suited For Repair shops, refurbishers, wholesalers and distributors Original manufacturing and authorized service

Apple describes the iPhone 11 Pro Max as using a built-in rechargeable lithium-ion battery but does not provide a nominal mAh capacity on its official technical specification page.

This ESC product is an aftermarket replacement battery and is not represented as an original Apple battery.

FAQ

1. Which iPhone models are compatible with this battery?

This battery is designed for the iPhone 11 Pro Max, including model numbers A2161, A2218 and A2220.

2. Is this battery compatible with the iPhone 11 or iPhone 11 Pro?

No. The iPhone 11, iPhone 11 Pro and iPhone 11 Pro Max use different battery shapes, connectors and internal configurations.

3. What is the rated capacity of this battery?

The advertised rated capacity is 4500mAh. Actual available capacity and runtime may vary according to test conditions, device condition, software and user behavior.

4. What is the nominal voltage?

The nominal voltage is 3.83V. The voltage specification should be verified before installation or bulk-order approval.

5. Is this an original Apple battery?

No. It is an aftermarket replacement battery manufactured for professional repair, refurbishment and wholesale distribution.

6. How many charge cycles can the battery provide?

The product page states a cycle life of more than 800 cycles under specified test conditions. Actual cycle life depends on charging habits, temperature, discharge depth and device usage.

7. Can ESC customize the battery and packaging?

Yes. OEM and private-label services can include custom battery printing, branded boxes, neutral packaging, barcode labels and export cartons.

8. What is the minimum order quantity?

The product specification table lists an MOQ of 20 pieces. Because other areas of the current website show different order thresholds, buyers should confirm the final MOQ before placing an order.

9. What warranty is provided?

The standard supplier warranty is 12 months under the agreed warranty terms. Incorrect installation, physical damage, misuse and unauthorized modification are normally excluded.

10. Which shipping methods are available?

Available methods include express delivery, air freight, sea freight, rail and road transport. The final method depends on the destination, order quantity, required delivery time and lithium battery shipping regulations.

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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