This battery is cute, and this is really the only thing that it has going for it. The battery will not likely work with any case that you have, I always have to take my case off to charge my phone. Also, this is not a practical on-the-go battery as it works best laid flat on a surface (ie. desktop). It is near impossible to charge and use your phone at the same time, and I really REALLY do not recommend charging in your purse, as the lighting port will bend which ruins both your battery backup and your iPhone lightning port. I also don't feel like it charges my phone in a timely manner. Save your money, this is not worth the money, even on sale.