The Enduro for iPad case from PADACS has a built-in 6800mAh battery that can increase the battery life of the iPad 2 by 75% or the new iPad by 50%. The super-slim battery has an “MCU control chipset for smart power pack and iPad charging” and built-in power management software. It has “one button smart control for charging, auto off and a four level LED power display that will flash when power is low”, and you can even use the battery for charging other devices. The case is made of polyurethane with a TPU holder that fits both the iPad 2 and the new iPad. The Enduro is available for pre-order now for $59.95; expected ship date is June 15, 2012.