MacBook Battery A1331 - OEM Quality Specifications
MacBook Battery A1331 - OEM Quality Delivers A Direct-Fit Replacement For The 13-Inch MacBook Unibody While Preserving Original Performance And Runtime Behavior. The Pack Uses Lithium-Polymer Cells With A Smart Battery Management System That Communicates Fuel Gauge, Cycle Count, And Temperature Data To MacOS For Accurate Health Reporting. Nominal Voltage Is 10.95 V With A Three-Cell Series Architecture, And Capacity Is In The 60 Wh Class Match The Factory Profile For Stable Runtime And Sleep Performance.
Cells Are Grade A And Matched By Internal Resistance For Balanced Charging Across The Pack. The Protection Board Implements Overcharge, Overdischarge, Overcurrent, Short-Circuit, And Thermal Cutoff Safeguards, Supporting Reliable Operation Under Heavy Daily Use. The Connector And Mounting Points Mirror The Original Layout For A Clean Install Without Modifications. The Pack Is Shipped Tested To Un 38.3 Transport Standards And Complies With Ce And Rohs Requirements For European Distribution. Recommended Operating Temperature Is 0–35 °c, With Storage At 40–60% State Of Charge In A Cool, Dry Environment.
Compatible MacBook Models And Part Numbers
Compatibility Covers MacBook 13-Inch Unibody A1342 Only, Including MacBook6,1 (Late 2009) And MacBook7,1 (Mid 2010). Apple Service Part References Commonly Associated With This Battery Include 661-5391 And 661-5585, And The Battery Model Marking Is A1331. This Battery Is Not Compatible With MacBook Pro 13-Inch Systems Using A1322 Or Any Retina Models, So You Should Confirm The Bottom Case Model Code A1342 And The About This Mac Model Identifier Before Ordering.
The Harness And Footprint Are Matched To The A1342 Chassis, Ensuring Proper Fit Under The Palm Rest And Clearances Around The Trackpad And Speaker Bays. Firmware Handshake Supports MacOS Battery Status, Cycle Count Tracking, And Sudden Motion Event Responses As Expected For The Original Machine Family.
For Repairs, Refurbishing, And Stocking
The MacBook Battery A1331 - OEM Quality Is A Practical Choice For Bench Workflows Where Predictable Install Time And Consistent Batches Matter. Packs Are Lot-Coded With Production Dates For Inventory Rotation, And The Charge Level On Arrival Is Set For Safe Storage So You Can Stock Units Without Premature Aging. The Construction Uses Screw Mounts Rather Than Adhesive, Which Helps Speed Up Turnaround On High-Volume Refurbishing Lines And Reduces Rework Risk.
Use Cases Standard Battery Swaps On Sluggish Systems, Preventive Replacement During Keyboard Or Trackpad Service, And Power Refreshes On Fleet Machines Prior To Resale. The Electrical Profile Is Tuned For Stable Sleep Wake Behavior, Low Standby Drain, And Accurate Percentage Reporting So Customers Experience Predictable Day-To-Day Runtime After Collection.
Installation And Aftercare Tips For Long Life
You Should Power Down, Unplug The Adapter, Remove The Bottom Case, Disconnect The Battery First, And Avoid Pinching The Trackpad Ribbon When Seating The Pack. Screws Should Be Snug But Not Over-Torqued, And Cables Should Route Flat With No Strain On The Connector. A Post-Install Smc Reset Helps Clear Old Power Data And Restores Normal Charging Control.
For Best Calibration, You Can Charge To 100%, Keep It Plugged For Two Hours, Then Use On Battery To Around 5–10% Before Recharging To Full Without Interruption. Typical Cycle Life Reaches Several Hundred To Around One Thousand Cycles Depending On Usage Patterns, Depth Of Discharge, And Thermal Conditions. Keeping The Machine Cool, Avoiding Deep Daily Drains, And Storing At Partial Charge When Shelved Will Extend Service Life And Maintain Consistent Runtime.
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: A1342
