Macbook Battery A2527 - OEM Quality For Dependable Repairs
Zero cycle count, tight cell balancing, and accurate fuel‑gauge reporting make Macbook Battery A2527 - OEM Quality a direct‑fit choice for service benches that value consistency. Each pack is built to match original discharge curves and charge acceptance, so you keep runtime, peak performance, and sleep‑wake behavior aligned with factory expectations.
Stable connector tolerances, clean welds, and a calibrated protection board help reduce call‑backs after case work. You get predictable charging across macos battery health management, reliable percentage readings, and smooth handoff between idle, light load, and sustained workloads that are common in content, coding, and browsing sessions.
Key specifications and compatibility details
Part number: A2527. Chemistry: lithium‑ion polymer. Configuration: 3‑cell in series (3S) pack with integrated thermistor. Nominal voltage: approximately 11.3–11.4 V, with an operational range typical for a 3S li‑ion pack. Energy rating: matched to the original A2527 assembly to preserve design runtime. Cycle life: factory fresh 0 cycles, engineered for long service life under normal charge patterns. Protection: on‑board BMS with overcharge, over‑discharge, short‑circuit, and thermal safeguards. Compliance: built to meet standard CE and RoHS requirements commonly requested by European refurbishers.
Compatibility is defined by the A2527 identifier on the original battery assembly. You should confirm the A2527 code on the unit you replacing to ensure mechanical fit, connector alignment, and expected capacity class. The pack aligns with the original screw points and adhesive layout, and the fuel‑gauge logic communicates correctly with macos for battery health, cycle count, and time‑remaining reporting. The Macbook Battery A2527 - OEM Quality has the following specs: Capacity: 8693 mAh. Compatible with MacBook Pro 16" A2485 (Late 2021). 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: A2485, A2780
Installation, calibration, and service tips
Power the device down, disconnect the charger, and discharge to around 15–25% before removal to reduce stress on the cells. Use a P5 pentalobe driver to open the bottom case where applicable, protect the track cable during lift, and apply controlled heat or adhesive remover to release the battery without flexing the cells. Always disconnect the battery before working near the logic board, and avoid metal prying tools around the pack and its pads.
Calibrate after installation to stabilize percentage readings: charge to 100%, keep it connected for two hours, use the device on battery to around 5–10%, then recharge uninterrupted to full. Inspect for even cell temperatures during the first full cycle, verify macos system report shows a new cycle count and normal condition, and run a brief load test to confirm the pack sustains expected power without unexpected shutdowns.
