Latitude 5455 Owner's Manual

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Power adapter requirements of Latitude 5455

NOTE:If you did not purchase the Dell-branded power adapter that is recommended for your computer, ensure that the power adapter you use meets the following requirements.

The following table lists the power adapter requirements for your Latitude 5455.

Table 1. Power adapter requirementsLatitude 5455 power adapter requirements.
Description	Value
Power that is required from a power adapter to achieve optimal performance.	65 W
Power that charges the computer at a slower speed. NOTE:A warning message may appear informing you about the use of a lower-powered adapter and slower charging speed.	Less than 60 W
Minimum power that is required from a power adapter to operate the computer and charge the battery. NOTE:A warning message appears informing you about the use of a lower-powered adapter and slower charging speed.	27 W
USB Power Delivery (PD) fast charging.	Supported
ExpressCharge mode	Supported NOTE:Ensure that the computer is connected to a 65 W power adapter for this feature to be supported. NOTE:ExpressCharge mode must also be enabled in the BIOS Setup screen. Select Power > Battery Configuration > ExpressCharge, then press Enter.