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3800mAh High Capacity Battery for iPhone 16 Replacement Battery

3800mAh high capacity battery for iPhone 16 from a professional iPhone 16 battery supplier. ESC provides reliable replacement batteries with OEM support, strict QC and stable wholesale supply.

3800mAh High Capacity Battery for iPhone 16 Replacement Battery






Why Choose ESC iPhone 16 Battery Supplier?

Professional High Capacity Battery Manufacturer

ESC is a professional high capacity battery manufacturer specializing in lithium polymer replacement batteries for smartphones. We provide reliable battery solutions for repair shops, wholesalers and distributors worldwide.

Reliable iPhone 16 Battery Supplier

As an experienced iPhone 16 battery supplier, ESC provides stable product quality, competitive pricing and flexible supply solutions for global B2B customers.

Strict Quality Control System

Every battery is tested through multiple inspection processes, including capacity testing, voltage testing, internal resistance testing and aging performance evaluation before shipment.

Wholesale and OEM Battery Solutions

We support wholesale orders, OEM packaging and private label projects for distributors, repair chains and brands requiring long-term battery supply.

12-Month Warranty Support

All batteries include a 12-month warranty. Confirmed quality issues can be handled with replacement support according to our after-sales policy.

Global Shipping Capability

ESC supports international battery transportation by air, sea and railway with required shipping documents including UN38.3 and MSDS.


Quick Specifications

Specification Details
Product Type High Capacity Replacement Battery
Compatible Model iPhone 16
Battery Model EC-IP16
Battery Chemistry Li-ion Polymer Battery
Capacity 3800mAh
Voltage 3.886V
Energy 14.768Wh
Charge Limit Voltage 4.50V
Defective Rate ≤1%
Lead Time 5–7 Days (Subject to order confirmation)
Warranty 12 Months
Certification CE, UN38.3, MSDS, PSE
MOQ Flexible MOQ
Shipping Method Air, Sea, Railway
OEM Service Available

iPhone 16 battery supplier 3800mAh high capacity replacement battery

What Is iPhone 16 High Capacity Battery?

The iPhone 16 battery supplier solution from ESC provides a 3800mAh high capacity lithium polymer replacement battery designed for professional smartphone repair, refurbishment and wholesale applications. As an experienced iPhone 16 battery supplier, we provide stable quality control, OEM support and reliable global battery supply for repair shops, distributors and mobile phone parts wholesalers.


Key Features

1. 3800mAh High Capacity Performance

The iPhone 16 high capacity battery provides enhanced energy capacity and stable power output for users requiring reliable replacement solutions.

2. Dedicated iPhone 16 Compatibility

Designed specifically for iPhone 16 with matching battery structure, connector design and installation specifications.

3. Stable Lithium Polymer Technology

Built with lithium polymer battery technology to provide reliable voltage output, safety performance and consistent daily operation.

4. Professional Factory Testing

Each battery is tested for capacity, voltage, internal resistance and aging performance to ensure stable batch quality.

5. Wholesale and OEM Ready

Suitable for repair shops, wholesalers, distributors and brands requiring reliable iPhone 16 battery supplier solutions.


Compatible Models

Battery Model Compatible Device
EC-IP16 iPhone 16

Applications

Smartphone Repair Shops

The iPhone 16 battery supplier solution provides professional replacement batteries for repair technicians servicing damaged, aged or low-performance batteries.

Mobile Phone Parts Wholesalers

Suitable for wholesalers requiring stable inventory, competitive pricing and reliable replacement battery supply.

Smartphone Refurbishment Companies

Ideal for refurbishment businesses replacing old batteries before resale to improve device performance.

Regional Battery Distributors

Supports distributors expanding their replacement battery product range with factory-direct supply.

OEM Battery Brands

Available for companies requiring customized packaging, private labeling and long-term battery manufacturing support.


High Capacity Battery vs Original Battery

Comparison ESC iPhone 16 High Capacity Battery Original Battery
Product Type Aftermarket replacement battery Factory-installed battery
Capacity 3800mAh high capacity design Original factory specification
Battery Chemistry Li-ion Polymer Li-ion Polymer
Voltage 3.886V Original factory voltage
Application Repair, replacement and refurbishment Official production and service
Supply Channel Wholesale and distributor supply Official service channels
OEM Customization Available Not available
Private Label Supported Not available
MOQ Flexibility Suitable for B2B purchasing Limited
Warranty 12-month supplier warranty Manufacturer service policy
Cost Advantage Competitive solution for repair markets Higher official replacement cost

FAQ

  1. What is the capacity of the iPhone 16 replacement battery?

The battery capacity is 3800mAh, designed to provide stable and extended power performance for iPhone 16 devices.

  1. Is this battery compatible with iPhone 16?

Yes, this battery is specifically designed for iPhone 16 replacement and repair applications.

  1. Is this an original Apple battery?

No, this is an aftermarket high capacity replacement battery manufactured for professional repair shops, wholesalers and distributors.

  1. What voltage does this iPhone 16 battery use?

The battery voltage is 3.886V with 14.768Wh energy capacity and a 4.50V charge limit voltage.

  1. Are you an iPhone 16 battery supplier or manufacturer?

Yes, ESC is a professional iPhone 16 battery supplier and lithium polymer battery manufacturer providing replacement battery solutions worldwide.

  1. Can you provide OEM and private label services?

Yes, ESC provides OEM packaging, private label solutions and customized battery supply services for qualified customers.

  1. What quality tests are performed before shipment?

Each battery is tested for capacity, voltage, internal resistance and aging performance before delivery.

  1. What warranty is provided for this battery?

The battery includes a 12-month warranty with professional after-sales support for confirmed quality issues.

  1. What is the MOQ for iPhone 16 batteries?

MOQ is flexible. Trial orders and mixed-model purchasing options are available according to customer requirements.

  1. How can I import iPhone 16 batteries from China?

ESC provides international shipping solutions by air, sea and railway with necessary battery documents including UN38.3 and MSDS.

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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