I have a Dell Inspiron with an extended life battery that sticks out the back a little. The power cord is dying - works intermittently. I have a potential replacement cord that came with a different laptop I’d like to use. However, I am uncertain if this may cause problems or even be unsafe. First concern: The current, non-working, power cord has a hexagonal (cross-section) male end that plugs into the laptop. The replacement cord has the more typical round (cylindrical) end. The replacement cord does fit in the laptop and it is not apparent, physically, that it is a problem. Second Concern: The current, non-working (hexagonal), cord input matches the input on the replacement (round) cord, as expected since they're U.S. cords meant for U.S. power sources. However, the output is not the same. current, non-working (hexagonal), cord output: DC 19.5V 3.34A replacement (round) cord output: DC 19.5V 4.62A Will the higher amperage of the replacement cord cause a problem, especially a potential safety issue? The laptop is left plugged in for long periods of time, unattended. I’d hate to start a fire. Can someone with more electrical knowledge let me know if my concerns have merit or is my little, but more than zero, knowledge of electricity creating a concern where there should be none.