I was looking for a (relative) cheap gaming laptop that wasn't from Lenovo or Medion. The Asus ROG Strix GL531GU-AL061T was the winner. Not for gaming on the battery cause that's horrible at only 1 hour. The i7, 16GB @ 2666MHz, and the 1660Ti drives the 120Hz 1080p without any issues.
Now I can game and watch po..lice series everywhere!
Nice! I like the Asus ROG laptops.
As you've found out gaming on battery is a bit of a none starter. You'll probably find it limited your frame rate to 30fps too to try and keep going for longer like my Alienware does.
Now you can enjoy lounging on the sofa while gaming :)