I am wondering about the iPhone 6s Smart battery case. I am thinking about getting it but need others opinions. I currently have an iPhone 6s that I have had for about 21 months now. I will be up for a new phone on July 21 of this year but will have to trade this phone in to upgrade early. I’m on a 30 month retail installment. Anyway, battery life has been pretty aweful on my 6s and I am thinking about getting one of apples $29 battery replacements and keeping my phone for longer. If I would get a battery replacement, I think I would wait until closer to the end of this year to get the most out of this phone. What I am thinking about doing is buying a battery case to put on my phone til then and then once I get the battery replaced just use the battery case off and on. Is this kind of a stupid idea/what would you do. I know batteries are still out of stock and don’t really know what my best option would be. Is there anyone out there that has had a Smart battery case on their phone all the time? Is it hard on the battery? Need some opinions.