This is a used, original Apple battery for all models of Apple 17" MacBook Pro.
This battery has been fully charged, fully discharged and fully charged again before using Apple system profiler to determine the current capacity of the battery. This battery, when new, had a quoted capacity of 6800mAh.
This is a grade 2-A battery. The 2 refers to the battery capacity and indicates that it currently holds 75% or more of it's original charge, in this case, more than 5100mAh. The A refers to the cosmetic condition and indicates that the surface is almost as new, but may have very minor light scratches on the surface. This is a 68Wh 10.8V battery.
Apple model number : A1189
Condition : Grade-2A
Grade 2A means that this battery is both in excellent cosmetic condition (A) and has a full charge capacity of between 75% and 90% of it's original quoted capacity (2).
Part Number(s) : 661-4618, 661-4231, 661-3974, 020-5091-A, A1189
Warranty : 3months
Compatibility: