QuickerTek has announced the MacBook External Battery/Charger
(http://www.quickertek.com/products/macbook_charger.php) for the 15-
and 17-inch Apple MacBook laptops. This US$449.95 product charges and
or powers the notebooks with up to 10 additional hours of power. I

QuickerTek built MagSafe compatibility into the MacBook External
Battery/Charger. Standard MagSafe connectors are supplied with the
Battery/Charger, so users don’t have to do anything different to gain
additional battery power, Rick Estes of QuickerTek says. MacBook
users can monitor the available battery power using the Apple battery
charge indicator.

While the stock MacBookrecharges in five hours using the Apple AC
wall adapter, the MacBook External Battery/Charger recharges in only
three hours, according to Estes. It measures 9 x 6 x 1 inches and
weighs five pounds.