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danoman
10
Feb 13, 2015
There are differences between how specific chargers implement the Qi standard but none of them are "smart" chargers. All they do is listen to the Receiver (device being charged) commands (charge me, more power, less power, stop) and try to deliver what is asked for. The Transmitter (charging pad) does not implement any charge profiles, cell balancing, etc.
If a company makes both Transmitters and Receivers, they can include some additional/optional features specific to their brand but that is all still controlled by the Receiver.
A better Transmitter might look nice, last longer, be slightly more efficient (but all Qi chargers are only ~70% efficient anyways) but offers no real benefits over a cheaper one off ebay/Amazon/China.