LEDs on the case let you know how much extra juice is left, and the companion iON Intelligence app automatically redirects power when it's needed, and monitors usage to predict how long 'til your next charge.

ENGADGET: Otterbox iPhone 4 / 4S Defender case with iON Intelligence launching April 18th for $130 (video)

LEDs on the case let you know how much extra juice is left, and the companion iON Intelligence app automatically redirects power when it's needed, as well as monitoring usage to predict how long 'til your next charge.

ENGADGET

Ion Thomas, a teacher and father of two sons said reading to boys helped them to know how to read for themselves.

BBC: Stars to encourage boys to read