How can I wirelessly charge two devices on Base Station Hub Edition?
It can be a bit tough at first to find the power connection for two devices on Base Station, but completely possible and expected.
In order to charge two devices simultaneously, align each phone on the outer short edges of the charging pad. The charger includes 3 internal charging coils, one in the middle for horizontally charging one phone, and two on each side for vertically charging two devices together. Try aligning the phones so that there is about a 1 inch gap between them and the edge of each device hangs off the side of the pad a bit. The picture below shows the correct alignment of iPhone XS on the left and iPhone XS Max on the right.
The coils inside the unit have a relatively small radius which can make finding the charging spot tough to locate, but it makes wirelessly charging much faster and efficient at 7.5W.
Once the connection with the coils and your device has been made, it should become completely intuitive for your devices to find these 'sweet spots' again.