How to Charge a Laptop with a USB | Charge Laptop with USB-C 2018-USA-GA
Found a nice solution to charge my laptop with a USB-C charger even though its USB-C doesn't support charging. Minus 0.75 kg from the luggage weight, score! (more in the comments) :
Can I Charge My Laptop with USB? Let's find out the Possibilities - Sysprobs
Is it safe to charge my USB-C-charging laptop with a smartphone USB-C charger? - Quora
3 Different Ways to Charge a Laptop without a Charger < Blog - HP.com Thailand