If you're the proud owner of a Cingular BlackJack but are frustrated with the battery life you may be in luck. Check your box to see if you received two standard batteries, or one standard and one extended battery. If you only received two standard batteries Cingular will send you an extended battery at no charge.

Click the link below and fill out the form and you'll have an extended battery. It takes 2-4 weeks to process the order but it's worth the wait.