Apple promises 25 hrs talktime with Smart Battery case for iPhone 6, 6s

Apple has introduced a special Smart Battery Case for the iPhone 6s, iPhone 6 which costs $99.
Apple has introduced a battery case designed specially for its new iPhone 6s and the older iPhone 6.
For Apple iPhone users, poor battery back-up has been a constant complaint and with the new iPhone 6s we saw, Apple reduce the battery size to 1715 mAh from the earlier 1810 mAh.
With the new battery case, which has been listed on the Apple website, the company is offering longer battery life of over 2