So I got a new powerbank that outputs 5V2.4A, QC3 4V-12V2A and USB-C 5V 3A with 74.2Wh. My old Lenovo is only 32Wh and accepts 20V 2.25A. Would it be possible to rig something up so that the powerbank can charge the laptop without damaging either device?
Ebay has square power adaptors for ~$1.5 and if I hooked that up to a 5V to 20V converter, would that work?
I haven't found a good converter, but Amazon has a 20V->5V converter that has a 5V USB end and bare wires for the 20V end. If I hook a male usb to male usb then hook the bare wires to that ebay adaptor after cutting the wire, would that work? That adaptor seems to be for cars to power phones so I'm wonder if there is a better source for the converter?
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