Have you considered making use of the iphones widgets feature for your app? this would allow us to see how much charge and other info without actually requiring us to go into the app quick and easily. Much like one of your main competitors…
Ive attached a screenshot (of your competitor) to help explain.
@Jono I have submitted the request to develop widgets to them, but the team is currently focusing on improving and optimizing the functions and layout (content) within the app, so it is unlikely that they will develop widgets in the short term.