Fastmac today announced that it has started shipping its long-lasting battery upgrade for Apple’s 4th generation iPod with click-wheel. The company says that all customers that placed pre-orders through the its Web site will receive their shipments in the next few days, along with their free gift with purchase. Fastmac has also extended the free charger with iPod battery offer until midnight, August 31st, 2005. Orders placed via the company’s Web site will receive their choice of a free travel charger or cigarette lighter adapter. “Fastmac’s TruePower battery upgrades replace the iPod’s original internal battery with a larger capacity and longer lasting advanced power cell battery,” notes the company. “The upgrades offer 20- 70% more capacity than the original OEM battery and up to 7.5 times as many charge cycles.”