Battery settings are stored in sis or in battery firmware?

[aaron8x]

I am dual-booting on a Thinkpad T410 with Windows7 and Manjaro with a 55++ battery.
In Windows, I switch between "Always fully charge" and "Automatically optimize for battery lifespan" in Power Manager > Battery > Battery Maintenance, i rebooted in Linux and i think the settings are affecting Linux too.
So the question is: this settings are stored in software or the battery firmware?

[richk]

It's in an eeprom on the battery

[aaron8x]

Thank you