What percentage should you limit MacBook charging to?

There’s no magic number, and anyone who gives you one is guessing. The principle is simple: the more time your battery spends away from 100%, the slower it ages — but every point you shave off the limit is a point of runtime you give up when you unplug. The right setting is the one that covers a normal day for you, and not a percent more.

80%: the sensible default

This is the number Apple offers natively, and that’s no accident. It gets you most of the benefit — you’re out of the high-voltage zone — while leaving enough runtime for a meeting or an unplanned trip across town.

If you only want to think about this once, set 80% and move on. It’s already a big improvement over a machine that sits full all day.

60–70%: for a Mac that never moves

If your MacBook lives on a desk, wired to a display, and rarely comes off the charger, go lower. A battery held around 50–60% is in its most stable state — roughly where cells sit when they leave the factory.

The trade-off is real: at 60%, an unplanned afternoon out leaves you noticeably less margin. That’s fine if you know you can top up before you go.

What you actually give up

Less than you’d think, because the limit only applies while you’re plugged in. The moment you unplug at 80%, you’ve got 80% of a battery in better shape than it would’ve been after two years at 100%. The math works out over years, not over one afternoon.

But what about travel?

It’s the obvious objection, and it has an easy answer: lift the limit for the occasion. The night before a flight or a long day away from an outlet, go back to 100%, leave with a full tank, and let the limit take over again afterwards. A handful of full charges a year is nothing next to months spent out of the wear zone.

The short version

• You carry it and unplug daily: 80%.
• Mixed — out a few times a week: 70–80%.
• Desk-bound, always plugged in: 60–70%.
• Trip coming up: lift the limit the night before, then put it back.

Apple’s built-in limit stops at 80%. Cooked runs from 20% to 100% one percent at a time, walks an already-full battery back down to your target, and gives you a one-off 100% charge that turns itself off when you unplug.