I am using a company Fujitsu laptop. It is a nice & light laptop. The problem is I have only 1 power adapter. Thus, I have to bring along that power adapter coming back from work and going to work everyday. Since I have some spare Dell power adapters, I changed the power connectors of the Dell adapters to the Fujitsu power connectors.
The DC output specification for both Dell and Fujitsu are similar.
Dell's DC output, 19.5V 4.62A
Fujitsu DC output, 19V, 4.22A
The picture below shows the wires cutout for the Dell power adapter. The inner pin is not used for Fujitsu.
The picture below shows the connector used by Fujitsu laptop.