- First, confirm that your device supports 140W input power. Both the charger and the device must support 140W to reach the maximum output.

- Charge with the USB-C1 port. The USB-C2 port and USB-A port do not support 140W charging.

- Charging speed may be reduced appropriately when your device becomes too hot, especially during long use. Try charging in a cool environment (32 - 77°F / 0 - 25°C) and pause use of devices that are charging.

- Charging power also changes with battery level. When the battery exceeds 80%, charging power decreases automatically to protect battery health.

- When charging a 16" MacBook Pro, the required cable depends on the chip model. For M1 and M2 models, only use a USB-C to MagSafe 3 cable; for M3 and M4 models, you can use either an EPR (140W / 240W) USB-C to USB-C cable or a USB-C to MagSafe 3 cable.