I left my power supply at home twice while on trips and had to pick up spares both times. This one was used briefly and I no longer have any need for it. I bought it at Best Buy for $70 + tax. You can have it for much less.
It comes with many adapters -here is the manufactureres description:
Multiple charging tips included
Includes charging tips to fit 65W laptops, ultrabooks and Chromebooks, excludes Apple® laptops and USB-C® powered laptops
10' Length
Lets you place your laptop exactly where it is needed
Over-Voltage, over-temperature and short circuit protection
For reliable durability and safety while charging
Compatible with most 90 Watt laptops
Always have the power to charge whatever the 90 Watt laptop you are using