Genuine A1527 A1705 Replacement Battery for Apple MacBook Retina 12″ | Early 2015, 2016 & Mid 2017 Models | 7.55V 39.71Wh | Compatible with EMC 2746, 2991, 3099 & Multiple Part Numbers
Restore your MacBook Retina 12-inch to its original sleek performance with our authentic A1527/A1705 replacement battery. Designed specifically for A1534 models from Early 2015 to Mid 2017, this 39.71Wh battery delivers reliable power for ultra-portable computing, on-the-go productivity, and retina display tasks. With exact compatibility across multiple year models and advanced safety features, it’s the perfect solution to maintain your MacBook’s legendary thin profile and endurance.
Guaranteed Compatibility:
This battery is designed for:
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MacBook Retina 12-inch Model: A1534
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Production Years: Early 2015, 2016, Mid 2017
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EMC Numbers: EMC 2746, EMC 2991, EMC 3099
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Part Numbers: A1527, A1705
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Manufacturer Codes: MK4M2LL/A, MJY32LL/A, MF855LL/A, MK4N2LL/A, MJY42LL/A, MF855, MF865LL/A, MNYG2LL/A, MLHA2LL/A
Key Features:
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Ultra-Slim Design: Maintains the MacBook’s iconic thin profile
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High 39.71Wh Capacity: Optimized for extended portable usage
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Stable 7.55V Output: Consistent power delivery for retina display
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Advanced Safety: Multiple protection circuits (overcharge/overheat/short-circuit)
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Perfect Fit: Direct replacement, no modifications required
Technical Specifications:
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Capacity: 39.71Wh
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Voltage: 7.55V
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Battery Type: Li-ion Polymer
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Compatibility: MacBook Retina 12″ A1534 (2015-2017)
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EMC Compatibility: 2746, 2991, 3099
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Certifications: CE, RoHS, FCC
Performance Benefits:
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Extended Runtime: Up to 8-10 hours of web browsing
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Lightweight Design: Preserves the world’s thinnest MacBook form factor
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Efficient Power Management: Optimized for macOS energy saving
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Seamless Integration: Perfect compatibility with USB-C charging
Quality Assurance:
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Grade A Cells: Highest quality lithium-ion technology
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Rigorous Testing: 12-point quality control inspection
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1-Year Warranty: Comprehensive defect coverage
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Safety Certified: Meets international safety standards
Installation Guide:
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Power down completely and disconnect USB-C cable
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Remove bottom case (P5 pentalobe screwdriver required)
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Disconnect battery connector from logic board
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Carefully replace battery (adhesive strips may be used)
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Reassemble and charge fully before first use
Maintenance Tips:
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Use only Apple USB-C power adapter (29W or 30W)
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Enable “Optimized Battery Charging” in macOS Settings
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Avoid complete discharges; maintain 20-80% for daily use
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Store in cool, dry conditions (16-22°C ideal)
Package Includes:
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1 x A1527/A1705 Replacement Battery
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Installation guide
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Safety documentation
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Warranty card
Why Choose Our Battery?
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Exact OEM Specifications for thin profile design
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Multi-Year Compatibility (2015-2017 models)
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30-Day Return Policy
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Free Global Shipping
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Expert Technical Support
⚠️ Important Notes:
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Professional installation highly recommended due to thin design and adhesive components
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Verify your specific EMC number before purchase
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Recycle old batteries at Apple Authorized facilities
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Use only genuine Apple USB-C power adapters
Ready to Restore Your MacBook Retina 12″ Performance?
Click Add to Cart for genuine compatibility and fast shipping!











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