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Tassi
Punch Card
Posts: 4
Registered: ‎12-19-2017
Location: DE
Views: 1,792
Message 1 of 2

Charging by usb-c / thunderbolt 3 gen2 ideapad 720S 14 IKB 80XC003RGE

Does the usb-c port in this model support charging from powerbanks or usb-c wallchargers and what are the speed characteristics ? HW INFO.jpg

Tassi
Punch Card
Posts: 4
Registered: ‎12-19-2017
Location: DE
Views: 1,330
Message 2 of 2

Re: Charging by usb-c / thunderbolt 3 gen2 ideapad 720S 14 IKB 80XC003RGE

I tested the usb c charging with a xiaomi pro powerbank (12V 1,5A) 18Watt output and it works but only if the laptop is switched off. When laptop is powered on it works a few minutes but then the powerbank stops. Regarding the thunderbolt port it seems that the pcie port controller has only 2 lanes connected whereas the port itself has 4 lanes. This would result in 20gbit/s max. not the advertised up to 40. Anyhow i have a samsung t5 ssd connected and its running at read/write of 450Mb/s (as long it stays cool ;-) with USB 3.1 superspeed plus (10gbit/s) and thats fine for me.

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