HyperMac today said that its soon-to-be-extinct external MacBook batteries are compatible with the latest Air models. 60Wh, 100Wh, 150Wh and 222Wh capacities are available, theoretically offering up to six times the capacity of 11-inch Air's built-in battery. The 222Wh battery is said to extend the 11-inch Air's life by roughly 32 hours, whereas the 13-inch computer gains 38 hours. The gear will remain available until November 2nd for $200 (60Wh), $300 (100Wh), $400 (150Wh) and $500 (222Wh). A $150 car charger is also an option.
