There are many choices when it comes to charging cases for iPhone, but they still need a separate charger. Thankfully we have the Prong PWR case which has a detachable battery and also integrated charging prongs. And If there is ever a case where both the case and your phone ran out of battery, there’s a backup Micro USB port so you can charge and talk at the same time.
You can pre-order the Prong PWR case which is priced at $65. For more information about the Prong PWR case, make sure to check out the source link below.
Image credit: Prong