See pictures below Dell laptop charger green light indicating that its connected to working power power supply Latitude charger with blue tip indicator The light should turn either green or white if the charger is functioning properly. Its usually located either on where the two cables of the charger connect or at the tip of the charger. If its not working use a different socket.ĭell laptop chargers have a light which indicates if current is going through. Is it getting any power from either the charger or the battery? Check the wall outlet using a different electrical gadget to see if its working. This is obvious but I will include it here anyway as a reminder, since the obvious may become not so obvious when you are frustrated and want to kick your computer. If its still not turning on, don’t give up yet check the following Power supply and charger then connect the latitude laptop charger.Now press and hold the power button for 15 seconds.Disconnect the laptop from power supply.So basically you have to drain the residual power. This residual charge is what is referred to as flea power and can cause the laptop not to turn on. Same applies with the Dell latitude laptop. The light will still be green after you have disconnected from power supply. You can easily see this on desktop computer motherboard light. This will cause the laptop to appear like the AC adapter is bad when the laptop is just not making connection with power.Drain flea power if Dell latitude wont turnĮlectrical current remains for a period of time after you switch off your laptop even if you disconnect it from the power supply. Also, check the DC Jack on the back of the laptop to make sure it is not loose. Less than the required amperage will cause the power supply to burn up because the laptop is pulling more amperage than the AC adater can give it. It is also safe to have a higher amperage than marked on the laptop becuase the laptop can only pull the amperage it needs. AC adapters are safe to use within +/- 1V of the laptop voltage. It can be on the label on the bottom of the laptop or in the battery compartment. You should find a rating that looks like this: 19.5V - 6.65A.

The rating should be taken from the laptop, not the AC adapter because this is the best match of what the laptop needs. Some models have more than one AC adapter depending on the amperage rating. When ordering a Dell Latitude E6420 AC adapter, check the voltage and amperage on the bottom of the laptop to make sure you are ordering the correct AC adapter. Read more about Dell Latitude E6420 AC Adapters before ordering

Dell latitude e6420 power supply