I keep my gaming laptop plugged in almost all the time I use it. Battery is being charged to 100% all the time. Can you point me to a way how to keep the Acer laptop lithium ion battery at 80% when I don't need that extra charge?
Keeping lithium ion batteries at 100% charge at room temperature makes them lose 20%
capacity per year, while keeping them at optimal 40% charge level only lose
4% capacity per year. Charging a lithium ion battery above 80% and discharging it below
30% creates battery wear, reducing it's capacity
to hold charge. My point is that charging the battery to 100% and keeping it there is a waste of perfectly good laptop battery that would last 2-3 times longer if there was a way to choose a charge threshold.
In a Tesla car You can set maximum lithium ion battery charge threshold anywhere from 50% to 90% for daily use. You should only charge Your Tesla lithium ion battery to 100% shortly before trip that needs the maximum range.
On a Dell laptop there is a feature "Power manager" to set battery charge thresholds - For example: Stop charging at 80% start charging at 70%. This means that when working with power cord plugged in, the battery life is extended by keeping it below full charge.
According to Notebookcheck.net discussion, in addition to Dell and Samsung this feature is also present in Lenovo, Asus, Sony, HP, MSI laptops.
Acer, please, provide the option to set lithium ion battery charge thresholds.