Get full performance while on battery?

[MKeefeus]

I got a new laptop that works great while plugged in, but when I unplug it, the performance tanks. I have set the power plan to high performance just like it would be when plugged in. In League of Legends, I go from 250-300 fps while plugged in to sometimes less than 100 when on battery. My specs are a 1660ti and 9750h in a gigbayte aero 15. Is there a setting that I am missing. I tried setting power management mode to prefer maximum performance which helped slightly, but still not enough to make the performance up to what I would expect

[Vishera]

The thing is that manufacturers use small batteries that are not enough to power the laptop,

so they automatically downclock the CPU and GPU when on battery power.

[Wellingtonzed]

yes, its done by design, laptops will die way too fast if it goes on normally. Theyre designed to be gamed full on when plugged in. 

 

You can change the FPS a bit when using Nvidia GeForce Experience.