1) Thinking of purchasing a Certified Refurbished iPhone 7 (Verizon) 32 GB from Apple. How is the battery life on the iPhone 7 - will it be able to last me through the whole day. 2) How is anyone's experience with using a Battery case - does it protect as well as add a good amount of battery life to the phone. 3) Is it advisable to purchase an iPhone 7 now or wait till September when the new iPhone will be released. Would the price drop down to $449 (current iPhone 6 price) Thank you.