This is the Lithium Ion 38.8 Watt Hour Battery for the 12.9" iPad Pro models. This battery is classed as a grade 1 battery and therefore will have a full charge capacity between 90%-100%. When new these batteries have a full charge capacity of 10307mAh, therefore this battery will have between 9276mAh and 10307mAH.
Battery Specification
•3.77V
•38.8Whr
•10307mAh
•A1577
Condition : Grade-1
Grade 1 means that this battery has a full charge capacity of 90% or more of its original quoted capacity.
Part Number(s) : 821-2720, 020-00015, 2217-2548 A1577
Warranty : 3months