This does not changer anywhere close to 15w even with Samsung phone, very very slow wireless charge. I tried with IPhone wireless charge and it’s also very very slow. It works, but it’s not fast at all. The description said fast. Charge is not fast and shipping is not fast. Only fast to take the money I paid.
This charging pad charges my phone really slow, like it takes about 5 to 6 hours to charge my phone to 100%. I am very disappointed with the charging speed.