G15 Alienware charger compatibility

The "big brick" is the only charger compatible with both G15 and Alienware M16? I need a charger to use when I travel with my laptop (G15) that can be compatible with both, and that it's not huge.

I only found this one:
https://www.dell.com/it-it/shop/dell-cilindro-da-74-mm-330watt-gan-sff-adattatore-ca-con-spina-e-cavo-di-alimentazione-da-1m-italy/apd/450-bcbd/accessori-pc