DELL-Sandeep Pone which are powered by the laptop and other are externally powered.
how can i determine this?
DELL-Sandeep PIf you are using a docking station that draws power from the laptop then it is advisable you use more wattage AC adapter. As AC adapter supplied by systems are to supply enough power to run the system and charge battery.
Also, if the system doesn't get enough power then it might crash the system or cause unexpected shutdowns which could lead to data loss.
my understanding is that the input voltage must match the output voltage but the amps may vary. both of these together give you the watts of the power supply. can there be such a thing as too much watts ie. how much over can the amps be?
the laptop will tell you if the you say tried to use a 130watt adaptor on a 180watt laptop thorugh the docking station... but if you run the 180watt adaptor through the docking station on a 180 watt laptop then it doesnt give any warnings... but based on your advice that is still not ideal...? but could i run a 240watt adaptor through a docking station on a 130watt laptop if the voltage is the same?