Shenzhen Chunyilin Technology Co., Ltd.
                                                                                                           
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21 Years
Since 2005
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MacBook Battery A2519 (14" A2442 A2779, 2021) – 11.4V 66.12Wh 5800mAh A+ Grade Replacement Battery

Price Negotiable
Price: 80-300
MOQ: 3pcs
Delivery Time: 7
Brand: For Macbook
Product Description

Product Parameters:

Parameter Details
Battery Model A2519
Compatibility MacBook Pro 14" A2442 / A2779 (2021)
Battery Type Lithium-Polymer (Li-Po)
Voltage 11.4V
Capacity 66.12Wh / 5800mAh
Condition Brand New
Cell Grade A+ Premium Lithium Cells
Cycle Life 1000+ Charge Cycles
Certifications CE, FCC, RoHS
Warranty 12 Months
Price $210

Key Selling Points:

  • Designed for MacBook Pro 14" (A2442 / A2779, 2021)
    100% fit with original MacBook design and connector layout.

  • High-Capacity Performance – 5800mAh / 66.12Wh
    Offers extended battery life for power users and professionals.

  • Premium A+ Cells
    Stable voltage output and reduced wear even after heavy use.

  • OEM-Level Compatibility
    Integrates seamlessly with macOS battery management system.

  • Certified Safety
    CE, FCC, and RoHS compliant with smart IC protection.

  • Eco-Conscious Build
    Low environmental impact and high energy efficiency.

  • 12-Month Warranty + Support
    Trusted service and warranty for full peace of mind.


Product Advantages:

  • Full Compatibility Without Errors:
    No "Service Battery" warnings or macOS compatibility issues.

  • Long Cycle Life:
    Delivers over 1000 charge cycles—twice as long as cheap alternatives.

  • Advanced Power Management Chip:
    Ensures consistent charging and discharging behavior.

  • Quiet, Cool, and Efficient:
    Designed to minimize heat and power waste.

  • Ideal for Everyday and Professional Use:
    Supports video editing, multitasking, development, and more.


Frequently Asked Questions (FAQ):

Q1: Which MacBook models are compatible with this A2519 battery?
A: This battery is compatible with MacBook Pro 14-inch models A2442 and A2779 released in 2021.

Q2: Will this battery show up properly in macOS?
A: Yes, it integrates seamlessly with macOS Battery Health Management and system diagnostics.

Q3: What tools or skills are needed for installation?
A: Intermediate skills are required. We recommend professional installation or using detailed online guides with proper tools.

Q4: How do I confirm my MacBook model number?
A: Click the Apple logo > “About This Mac” > check for the model identifier (e.g., A2442 or A2779).

Q5: How long can I expect the battery to last per charge?
A: With 5800mAh capacity, it can last 8–10+ hours under normal usage, depending on workload and settings.

Q6: Do you offer bulk orders or reseller pricing?
A: Yes, contact our support team for wholesale discounts and reseller partnerships.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shenzhen Chunyilin Technology Co., Ltd.
Location Room 14H, Building D, Huaqiang Plaza, No. 1019, Huaqiang North Road, Huahang Community, Huaqiang North Street, Futian District, Shenzhen
Contact Person Mei Liu

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