The standard power adapter is powerful. But to be frank with you, it may seem a little "bulky" if you need to carry it for travel or mobile computing. The rear USB Type-C connector supports power input up to 140 W, enough for many use scenarios.
The USB Type-C connector (USB-PD) on the rear of the computer conforms to USB Power Delivery Specification. If you do not carry the included ac power adapter with your computer, you have the option of using a qualified USB Type-C charger (purchased separately) that is also Power Delivery compliant to charge the computer in sleep or powered-off state.
Lenovo branded USB Type-C chargers with the following listed maximum ratings are tested to work with the computer. Chargers of other brands with the same ratings should also work but are not thoroughly tested.
- 20 V, 7 A
- 20 V, 6.75 A
- 20 V, 5 A
- 20 V, 4.75 A
The rear USB Type-C connector is not designed as the primary power input connector. When the computer is operating, power supplied by the USB Type-C charger may be insufficient. As a result, the computer may not operate at its full capacity and battery charging is very slow and may stop.