Product reference : #BLD-72695
Battery laptop apple macbook air 3.1 1.4 ghz
Chemistry : Li-PL
Capacity : 4800 mAh
Voltage : 7.3 V
Color : Noir
Series : apple macbook-air
Subseries : macbook-air-3.1
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For all battery the difference of 2 volts in the voltage is negligible. The compatibility with your old Battery laptop apple macbook air 3.1 1.4 ghz is therefore ensured.