How to charge a tablet without USB from a powerbank?

Question

Iron

Good day.
I am the owner of the tablet Miix 320-10ICR Tablet (ideapad).
The unit is of course weak, but Windows on board decides, and it helps a lot on the road.
But he has one drawback. It cannot be charged via USB, only with the power supply from the V220.
And so I thought, can I somehow make a cable that would help me charge this unit from a powerbank?
Finding a 20-watt can is not a problem, there is an extensive selection in stores, but how to make the right cable? Or maybe I was looking for something like this, and on some kind of Ali there has been one for a long time?
PS. And if you tell me if such connectors have any markings, so that it would be easier to google the donor, I would be extremely grateful.
P.P.S. Flash drive for scale.

Answer 1

Take a flexible cable of a sufficiently large cross section. Find such a connector in the radio components, and solder the USB type A
connector. You google the USB pinout, and at the tablet connector plus inside - do not confuse the polarity.
Ready.
Only need a PowerBank capable of delivering 4 amps at 5 volts, judging by what is written on the power supply.

Answer 2

"USB 5V power cable compatible with Lenovo MIIX 310-10ICR tablet" https://www.ebay.com/itm/372956961224