BiXPower High Capacity (96Wh or 26000mAh) External Battery Pack for MacBook Computers - MAC90 High capacity external Lithium ion rechargeable battery for Apple Macbook laptop computers and iPad. This battery has 96 Watt-hour capacity. FYI: MacBook Air laptop internal battery capacity is around 37 Watt-hour and iPad internal battery capacity is around 25 Watt-hour. It can provide up to 25 hours running time for iPad, up to 10 ~ 15 hours or more extra running time for Macbook laptop computers. ( Actual running time may vary for different computer model and running under different condition). Weighs only 1.4 Lbs. Compact size: 7.5 x 4.5 x 0.9 inches Has its own AC charger, can be charged from 100 v ~ 240V AC power source. Come with special power cables & connectors compatible with both MagSafe and MagSafe2 connectors. Works for Macbook computers that come with 45W or 60W or 65W power adapters. 5V USB ports for mobiles, iPad/iPhone. For iPad, it can provide up to 30 hours extra running time. For iPhone, up to 70 hours talk time. This battery may not work for Macbook Pro computers that require 85W 18.5V ~ 20.5V power. We recommend to use our more powerful MAC170 or MAC220 battery for those computers.