Looking After The Battery?

DezUk · 22 Jun 2020 at 10:42

So I just got a brand new 16" MBP 2019 and its my first laptop in 6 years. I am still using the charge ouyt of the box and was wondering if I should let it run all the way down and then charge and then use. Or is the battery more intelligent these days?

I do not want to just leave it charging all the time and ruin the battery life. Currently at a cycle count of 2

Cheers

ChrisD. · 22 Jun 2020 at 11:07

If it's plugged in and on AC power, as long as the Mac isn't being hammered the charging circuit will be bypassed and it'll run directly off the mains.

Finners · 22 Jun 2020 at 11:40

Last time I read about lithium batteries being charged so not MacBook specific. It was ideal to keep them charged between 20-90%. Not to run them completely flat or keep fully charging them as the heat increases more in that last 10%.

Lithium batteries don't suffer from memory charge like old rechargeables did.

Tephnos · 22 Jun 2020 at 15:14

Yup. Keep the lithium cells between 20-80% for optimal lifespan.

If you have the option of limiting charging wattage, do so as well. Higher wattage charging = more heat which degrades cells faster.

DezUk · 22 Jun 2020 at 18:56

Thanks for the tips folks