Original Apple battery for all models of 17" Aluminium G4 PowerBook. This is a used, tested 10.8V battery, model number A1039 or A1057. 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 5,400mAh.
This is an grade 1-B battery. The 1 refers to the battery capacity and indicates that it currently holds 90% or more of it's original charge, in this case, more than 4,860mAh. The B refers to the cosmetic condition and indicates that although in reasonable condition, this battery has been used and may have scratches or blemishes.

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