HyperMac External Battery

Charge and extend the power your Apple devices with the HyperMac ($200-$500). This external battery pack for all MacBook laptops, iPods and iPhones is available in 60Wh, 100Wh, 150Wh and 222Wh capacities, providing up to 32 hours of battery life. Simply plug your device into the HyperMac for extended power on the go. [source]