> But many bigger devices don't. I think most laptop only charge off of 20V mode, so it won't work if the charger can only do 5V or 9V. I'm able to charge my T

> But many bigger devices don't. I think most laptop only charge off of 20V mode, so it won't work if the charger can only do 5V or 9V. I'm able to charge my ThinkPad T14 (1st Gen AMD) using my 25W PD 3.0 Samsung phone charger (EP-TA800). Does it really deliver 20V if needed?