I don't know about long term use with this app. Batteries are a strange chemistry things and you should stay between the lines to get the most out your IPAD Battery. I had an old HP laptop charger which I used on my newer HP and it killed the battery in six months! I mean dead, no charge at all. After some research I found that laptop charger come in all sorts of amperage and charging voltages. I have the same Not Charging issue. on my windows laptop. But work fine on my new Macbook with USB 3. I have also discover that off brand charging cables will do the same thing. There is a reason why the apple chargers are thicker. My2C.