Mac battery problems: drain, health and charging

Which battery problem do I have?

Each problem has a sign you can check, and a guide that goes deeper.

Why is my MacBook battery draining so fast?

Check first for an app using a lot of energy. macOS shows which one.

1. Click the battery icon in the menu bar. It lists the apps, if any, using a lot of energy. If you aren’t using one, quit it, especially on battery.
2. For every app at once, open Activity Monitor (in Applications > Utilities), click Energy, then click the Energy Impact column heading to sort the list, highest first. Energy Impact is a relative measure of each app’s energy use right now; lower is better.
3. Look at 12 hr Power too: each app’s average energy impact over the last 12 hours, or since your Mac started.

On some Mac laptops, the battery menu also shows Display Brightness when the screen is bright enough to use a lot of energy. Click it to turn the brightness down to about 75%. MacBook battery draining fast? See what’s busy walks through each step.

Is my MacBook battery healthy?

Battery Health in System Settings shows the battery’s condition.

1. Choose Apple menu > System Settings, then click Battery in the sidebar. You may need to scroll down.
2. Read Battery Health. Normal means the battery is working normally. Service Recommended means it holds less charge than when it was new, or isn’t working normally.
3. Click the info button (ⓘ) next to it to see Maximum Capacity: how much charge the battery holds compared with when it was new.

For the cycle count, hold the Option key, choose Apple menu > System Information, then click Power under Hardware. Recent MacBook Air and MacBook Pro batteries are designed to keep up to 80% of their original capacity at 1,000 cycles. MacBook battery health and cycle count, explained shows how to read both.

Why is my MacBook plugged in but not charging?

Often because macOS is protecting the battery. Click the battery icon in the menu bar and read the line under the charge.

• Charging On Hold: Optimized Battery Charging is delaying charging past 80%, because it predicts your Mac will stay plugged in for a long time. It aims to finish charging by the time you usually need it. Choose Charge to Full Now if you need 100% sooner.
• Not Charging: Apple gives three reasons. macOS paused charging to protect the battery, and may wait until it drops to 93% or lower. Or the charger gives enough power to run your Mac but not to charge it. Or your apps use more power than the charger provides.

MacBook plugged in but not charging? covers the Charge Limit setting, and Apple’s checks for a Mac that won’t charge at all.

Is my charger too weak?

A charger below the wattage Apple recommends for your Mac charges slowly. During heavy work, it may not charge the battery at all.

1. Hold the Option key, choose Apple menu > System Information, then click Power in the sidebar.
2. Read Wattage (W) under AC Charger Information.
3. Compare it with Apple’s recommendation: 67 W, 70 W or 96 W for a 14-inch MacBook Pro introduced in 2021 or later, 140 W for a 16-inch one, and 30 W (13-inch only), 35 W, 67 W or 70 W for a MacBook Air introduced in 2022 or later.

On macOS Tahoe 26.4 or later, Slow Charger appears in the battery menu and in Battery settings when the charger gives too little for your Mac. Your Mac charges over only one port at a time, so a second charger doesn’t speed it up. Is your charger fast enough for your MacBook? lists every model.

How do I make my MacBook battery last longer?

Apple’s tips for each charge:

• Dim the display to the lowest comfortable level.
• Quit apps you aren’t using. Even an app you aren’t using may be working in the background.
• Turn off Wi-Fi and Bluetooth when you don’t need them.
• Choose Low Power Mode on battery, below.

For the battery’s lifespan, leave Optimized Battery Charging on: Apple designed it to reduce wear by cutting the time your Mac spends fully charged. Keep your Mac between 10 °C and 35 °C (50 °F and 95 °F); Apple says heat above 35 °C can permanently damage battery capacity. How to make your MacBook battery last longer has every setting, and the myths.

What does Low Power Mode do?

Low Power Mode reduces energy use to increase battery life.

1. Choose Apple menu > System Settings, then click Battery.
2. Under Energy Mode, open the On battery pop-up menu and choose Low Power.

In macOS Sequoia 15.1 or later, you can also choose an Energy Mode from Control Center, and on recent Macs with fans, Low Power Mode also helps reduce fan noise. To see whether it’s on, click the battery icon in the menu bar. Low Power Mode on a Mac: what it changes explains the trade-off, and High Power Mode.

What does Service Recommended mean, and when should I replace the battery?

Service Recommended means the battery’s ability to hold a charge is less than when it was new, or the battery isn’t working normally. Apple says you can safely keep using your Mac, and get service if the shorter battery life affects you.

Think about a new battery when:

• Battery Health says Service Recommended, and the charge no longer lasts as long as you need.
• The cycle count has reached the maximum, 1,000 for recent models. Apple recommends replacing the battery then for best performance, though you can keep using it.

Apple says a built-in battery should be replaced only by an Apple Store, an Apple Authorized Service Provider, or an Independent Repair Provider using genuine Apple parts. Apple’s One Year Limited Warranty covers a defective battery. With an AppleCare Protection Plan, Apple replaces a battery that keeps less than 80% of its original capacity at no charge; otherwise there’s a fee.

Questions people also ask

Is it bad to keep my MacBook plugged in all the time?

No. Optimized Battery Charging is made for that: when it predicts your Mac will stay plugged in for a long time, it delays charging past 80%, which reduces wear on the battery.

How long does a MacBook battery last?

Apple designs recent MacBook batteries to keep up to 80% of their original capacity at 1,000 charge cycles. A cycle is all of the battery’s power used, but not necessarily at once: half one day and half the next add up to one.

Why did my battery drop while it was plugged in?

Either macOS paused charging to protect the battery, which may drain to 93% or lower before charging starts again, or your apps are using more power than the charger provides.