Laptop Battery drains insanely Fast!

[george ember]

Hi. I have a lenovo Ideapad p400 touchscreen.
My problem is the battery.
Drains too fast. In idle ~1% per minute!!!
I tried almost everything but my battery still loses power extremely fast!
This is my post on FreeBSD forum
https://forums.freebsd.org/threads/laptop-battery-drains-extremly-fast.50344/
I don't like Linux. I am FreeBSD user almost 5 years. I don't want to
install again Linux on laptop.
I just want to make it work smooth with FreeBSD.
Any help could be appreciated.
George (sk8harddiefast on forum)