I've just picked up a second hand first gen iPad and cant find the battery usage option in settings. My iPhone has a usage tab that shows how long it's been since it's last charge and how much use it has had. Has this been removed from the iPad or am I just looking in the wrong place? If it's not available to me, is there an app that will do it (not one that just shows me a graphic of how much juice it thinks I have left). As this is second hand id like to get an idea on how good the battery life is and how quickly it is draining. TIA.