MacBook Battery A1322 – OEM Quality Specs And Compatibility
MacBook Battery A1322 – OEM Quality Is A Direct-Fit Internal Pack For The 13‑Inch MacBook Pro Unibody Series, Model A1278, From Mid 2009 Through Mid 2012. It Uses A Lithium‑Polymer Chemistry With A Nominal Voltage Of 10.95 V And A Typical Energy Of 63.5 Wh, Delivering Around 5770 Mah Under Standard Conditions. It Is Calibrated For MacBook Pro’s SmBus Power Management And Fuel Gauge, So Percentage Reporting, Cycle Counting, And Sleep Behaviors Work As Expected. It Ships At A Serviceable State Of Charge For Safe Transport And Quick Installation On The Bench.
Key Details Include A Three‑Cell Architecture, Integrated Flex With Board Connector, And Screw‑Mounted Housing For The Unibody Lower Case. Expected Cycle Life Meets Or Exceeds 500 Charge Cycles To 80% Capacity Under Normal Use, With Optimal Operating Temperatures Between 10–35°C And Recommended Storage At 20–60% State Of Charge. Typical Charging Current And Cut‑Off Thresholds Mirror The Original Profile, Ensuring Stable Runtime, Low Idle Drain, And Consistent Wake From Sleep.
Durable Cells, Smart Bms, And Safety Standards
The Pack Uses A‑Grade Cells Matched For Internal Resistance And Balanced By A Smart Battery Management System That Handles Cell Balancing, Over‑Charge, Over‑Discharge, Over‑Current, And Thermal Protection. The Bms Communicates With macOS For Accurate Remaining Time Estimates And Adaptive Charging, Helping You Deliver Predictable Results To Customers Who Rely On Legacy A1278 Units For Daily Workloads.
Compliance Includes Ce And Rohs, With Un38.3 Transport Testing Completed For Lithium Cells. Each Unit Arrives In Anti‑Static, Shock‑Protective Packaging Suitable For Workshop Intake, Inventory Shelving, And Cross‑Border Shipping. Date Codes And Cycle Counts Are Readable In macOS System Information, Allowing You To Log Parts And Verify Health At Handover.
Quick Bench Installation For A1278 i body
Installation Is Straightforward And Suits High‑Turnaround Benches. You Will Need A Phillips #00 For Bottom Case Screws And A Tri‑Wing Y0 For The Battery Mounts, Along With A Nylon Spudger For The Board Connector. After Disconnecting Power And Removing The Lower Case, You Can Lift The Old Pack, Transfer The Mounting Screws If Needed, Seat The New Flex Cleanly, And Torque Screws To Firm But Not Excessive Tightness To Protect The Threads In The Chassis.
Post‑Install Steps Are Resetting The Smc, Booting To Confirm Charge Recognition, And Running A Soft Calibration: Charge To 100%, Keep It Plugged For Two Hours, Then Use On Battery To Automatic Sleep, Let It Rest For Five Hours, And Recharge To 100%. This Routine Helps The Fuel Gauge Align With The New Pack’s Actual Capacity For Stable Readouts.
Performance Metrics And Service Tips
In Real‑World Use On The 13‑Inch A1278 Platform, You Can Expect Solid Web, Office, And Light Development Runtimes Consistent With A 63.5 Wh Pack, With Minimal Drift Over The First 20–30 Cycles As The Cells Settle. Idle Drain Is Kept Low By Tight Quiescent Current On The Bms, And The Pack Supports Normal Sleep And Standby Modes Without Unusual Wake Events Or Sudden Percentage Swings.
For Longevity, Advise Customers To Keep Charging Within Typical Room Temperatures, Avoid Deep Storage Discharge, And Cycle The Battery Periodically If The Laptop Lives On Mains Power. For Refurb Lines, Store Units At 20–60% State Of Charge And Rotate Stock Every 3–4 Months. These Practices Maintain Capacity, Reduce Return Rates, And Keep Your A1278 Builds Consistent Across Batches.
The battery is covered with a 1-year product warranty. The warranty does not cover man-made damage or wear and tear. To be used with MacBook model number: A1278
