Does your mobile phone run out of battery when you need it the most? The Avacom for Apple iPhone 6s, Li-Ion 3.82V 1715mAh (replacement for 616-00036) can be used as a spare battery. It is designed for Apple mobile phones, more specifically the iPhone 6s models. The Lithium-ion (Li-ion) battery provides a capacity of 1715mAh to ensure extended run time. To keep this mobile phone battery running at its full capacity, please read and follow the manual on proper battery usage.