I have relatively high discharge rate (about 14W, which results in ~3 hours of battery life) on my ThinkPad X230. I'm using TLP, intel_pstate's
powersave governor. The following kernel arguments are in my
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_pstate=enable pcie_aspm=force acpi_osi=Linux acpi=force acpi_enforce_resources=lax i915.enable_rc6=1 i915.semaphores=1".
For comparison it lasts for 4-5 hours on Windows 10.
So, the question is: what else could I do to improve battery life?
UPD: Powertop report: http://pastebin.com/9hfBdKrm