Got a 3 coils Qi Transmitter, 2A. Gets hot.
Checked the boost circuit: although I trimmed it to 10.0 Volt at no load, voltage drops to 8.05 when charging!
Checked the Qi receiver: output is 5.0 V without load. And just 2.96 when charging!!!
5.0V/1A, really? Piece of crap. Need a better Qi receiver