Cingular BlackJack owners that felt left out not having an extended battery, can feel left out no more. Shortly after its release, buyers began finding their devices coming with an additional extended battery, to compensate for the shorter-than-expected life (the device still comes with the standard battery).
However, AT&T Cingular is now offering all BlackJack owners an Extended Battery, by going to the redemption web site linked below. AT&T will validate your phone’s IMEI (from the back of the phone), to see if your BlackJack qualifies.
