Apple recently won a technology patent , which outlines a battery back clip with two-way wireless charging,media Wccftech reported. Among Apple’s previous patents, there are plans to launch an iPhone device with no ports at all. Combined with the technology’s patented, the battery back clip can be charged with an iPhone without a port.
Existing battery back clips are mainly used to charge the device through the Lightning port. If Apple plans to introduce an iPhone without ports at all in the future, it will have to make some changes to the design of the case to provide two-way wireless charging.
Apple’s patent, obtained earlier this month, states in a patent overview that the battery back clip has first and second coils, which are located on the opposite side of the battery, and have a switching circuit that is coupled between the first and second coils. The dual coil will allow the battery case to charge itself wirelessly, while also charging the device.
In the shutdown state, the battery back clip connects the two coils so that the current can be transmitted through the first coil to the second coil to charge the device. This means that when the battery back clip is on, the device is placed on the wireless charger and can be charged directly. As a result, the battery back clip charges the device before charging itself.