16/19-222U Mobile Freedom Power Commercial Series - 222Wh Powers 16V and 19V Devices.
The 16/19-222U powers the MacBook laptops for approximately 12+ hrs per charge on average.
Includes: Tripod, Laptop Platform, Seaport Case with Hood, External long life battery (Battery Geek or Hypermac or Versa)
Use your MacBook for up to 32 hours without recharging , Power your MacBook and recharge the internal battery at the same time
For use with the iMac (Intel Core Duo), MacBook, and 12-inch PowerBook G4.