Question about Xtorm AL490 AC Pro

Can I use it to charge my laptop while it is running? The device in question is the following: ASUS ROG Strix GL503GE-EN073T SCAR Edition (15.60", Full HD, Intel Core i7-8750H, 16GB, SSD, SSHD) Well, the output of the power supply is 150 watts which is in the specification of the 200 watts of the powerbank. but the input with 220V and 0.9 amps would then result in a power of ≈ 200 watts, which is again at the upper limit.