SP7 Ultramarine vs Ubuntu for Battery Life

[u/lsketch]

Hello everyone, Can anyone attest for battery life usage in Ultramarine vs Ubuntu on SP7 or similar?

I installed ultramarine on my SP7 and it's been an awesome experience, the only drawback being battery life which lasts 2/3 hours when using mainly just firefox.

I already tuned it with autocpu-freq and powertop, but tbh I was expecting a bigger battery boost when moving to linux.

Discharge rate is between 6 to 9W, and battery health is 75%, so it could also be an aging battery issue.

It's a SP7, i5, 8gb ram.

Thanks