I have good quality cables in my study, but wanted to plug in my Mac in the living room for little money. I have a three year old Anker multiport charger (4 lightning, one USB-C port), a MacBook Pro which can use a 100 Watt charger, and I bought a USB-C cable meant for a phone with 5 Volt, 2 Ampere = 10 Watt. If I plug the MacBook (100 Watt) via the cable (10 Watt) into the charger (30 Watt) it actually seems to pull 10 Watt; nowhere near enough, but it discharges slower when in use and charges the battery back overnight.
If I buy a cheap USB-C cable that calls itself “60 Watt”, any idea how risky that is? Since the charger cannot supply more than 30 Watt and the MacBook handles 100 Watt, there should never be more than 30 Watt around and both charger and MacBook should be safe, while I know nothing about the quality of the cable so that could be at risk? Is that right?
So best case I thought my MacBook gets 30 Watts and runs all day, discharging the battery a lot slower than normal, slightly less good I paid for a 10 Watt cable with a “60 Watt” sticker that reliably produces ten Watt but not 30 or the promised 60, slightly less good it doesn’t work at all, and the bad case that it damages charger or MacBook shouldn’t happen?
