I confirm that this battery is compatible with a laptop Acer Aspire 8930, autonomy is correct about 3 to 4 hours. At first I admit I was a little concerned because I had a first experience with another vendor who said that the battery was 100% compatible and that was not the case at 0% but this is consistent to perfect it on the first try, it was immediately recognized by my computer. What happiness finally be able to move me without cable outlet. A strongly advise for Acer Aspire 8930, in respect of other mobile computer mentioned I can not say anything to help.
Another plus is its price quite correct because there are about 20 to 25 or even less with IT suppliers that are supposed to be cheaper.