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Dell XPS 13-4040SLV Power Adapter
The Dell XPS 13-4040SLV AC adapter is responsible for two things, to charge up the main battery and to provide a source of power for the unit. If buying off-brand, it is imperative to note the output of amps and voltage. A universal AC adapter can be used if you are desperate. Because Dell has been known to use a single AC adapter that can be used on other units, make sure you check the part number for the correct one. When choosing a new charger, choosing the Dell brand one is usually going to be the safest choice.
Signals your laptop charger should be replaced
- The unit will not run without the battery installed
- Most Dell adapters can get quite warm when plugged in for any length of time
- Your Dell battery refuses to charge up completely
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