Do you have to charge two batteries?

How are the batteries interconnected? Do you simply charge the phone as usual or do you charge the battery back separately?

Apple iPhone 7 Smart Battery Case

Apple iPhone 7 Smart Battery Case

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2 Answers from the Community

  • Answer

    You Charge the phone "as usual". It replaces the stock lighting connector for another one. Both batteries are charged simultaneously but when you use it, the battery in the case is used first (iPhone battery's remains at 100%).

  • The batteries are interconnected through the same battery port that the iPhone uses on a stand-alone basis... when you put the case on, the connector on the case plugs into the port on the iPhone ... Then you plug your cable into the port on the case. I have been charging them together on the iPhone dock and it works great.