08-03-2018 02:35 PM
I have a Lenovo T440P Thinkpad laptop that I want to charge from the DC output of a 230000 mAh power bank. The laptop battery is a 57+.
The power bank has these choices for voltagte: 9V, 12V, 16V, 19V, 20V. Which voltage should I use?
08-03-2018 08:02 PM