Hello Today, I received this powerbank, I connected my Xiaomi 11t Pro 5G phone with the 6A cable in the package to the USB C1 port. on the phone display the writing ultra-fast charging 100 watts appears and sometimes 120 watts but the power bank output is 17 watts. I also tried a tester and different cables but the situation is always the same. it charges at 17 watts and drops to 5 watts and then goes back up to 17 watts again. it always goes up and down up to a maximum of 17 watts. I also tried the original Xiaomi phone cable with USB type A connected to the USB type A port of the power bank and it activates the turbo charger but the maximum watts are 20. Can you tell me why I have this problem? Thank you.