The battery in your new MacBook Pro or MacBook Air has a finite life, but with a few steps you can maximize how long it is before you have to replace them —and how many hours of use you get each day.
Even if we could readily swap out MacBook batteries the way we used to a decade ago, there’s now the further complication that many of us are using these sealed laptops with physically smaller batteries as in years past as desktop replacements. We’re running external monitors on them and, in recent years those monitors are charging the laptops.
If you’re doing this, you’re not letting the battery deplete, you are off-and-on recharging it a tiny, tiny bit at a time. It’s been a long time since we had NiCad batteries where this would degrade them over time —and this behavior in this day and age won’t harm the battery to any appreciable level.
Read more at AppleInsider.com