How to check battery health and cycle count on Mac

MacBook batteries degrade over time — it's chemistry, not a defect. But macOS gives you surprisingly detailed battery diagnostics built right in, no third-party app required. Here's how to check your battery health, cycle count, and maximum remaining capacity in under two minutes.

What battery health numbers mean

Three numbers tell you most of what you need to know about a MacBook battery:

• Cycle count — the number of complete charge cycles the battery has been through. One cycle = draining the battery from 100% to 0% in total, whether that's one session or spread over several partial charges.
• Maximum capacity — the percentage of original capacity the battery can still hold. A new battery is 100%. At 80% it holds 80% of its original charge.
• Condition — Apple's summary label: Normal (fine), Service Recommended (degraded enough to warrant attention), or rarely Replace Now.

Most modern MacBooks (all M-series and Intel models from around 2012 onwards) are rated for 1,000 charge cycles before the battery is expected to fall below 80% of its original capacity. Some older models were rated for 300 or 500 cycles — check Apple's spec page for your exact model if in doubt.

Method 1 — System Settings (quickest)

On macOS Ventura (13) and later:

1. Open System Settings from the Apple menu.
2. Click Battery in the sidebar.
3. Find the Battery Health row and click the (i) info button to the right of it.
4. A sheet appears showing your Maximum Capacity percentage and Condition.

Note: this view shows condition and capacity but not the raw cycle count. For the cycle count you need System Information or Terminal below.

On macOS Monterey (12) and earlier: go to System Preferences > Battery and look for Battery Health in the lower section of the Battery tab.

Method 2 — System Information (most detail)

System Information gives you the full picture including cycle count:

1. Click the Apple menu (top-left corner).
2. Hold Option and click System Information. (Without Option, click About This Mac then System Report.)
3. In the left sidebar under Hardware, click Power.
4. Under Battery Information, look for:
   • Cycle Count — the number of full cycles used
   • Condition — Normal or Service Recommended
   • Maximum Capacity — remaining capacity as a percentage

You'll also see charge/discharge rates, full charge capacity in milliamp-hours, and the current wattage — useful if you're troubleshooting charging behaviour.

Method 3 — Terminal (fastest once you know the command)

If you want all three key values in one shot:

# show cycle count, condition, and maximum capacity
system_profiler SPPowerDataType | grep -E "Cycle Count|Condition|Maximum Capacity"

Output looks something like:

          Cycle Count: 342
          Condition: Normal
          Maximum Capacity: 91%

This pulls from the same data source as System Information — it's just faster to type than clicking through menus. No sudo required.

What cycle count is too high?

The threshold depends on your model's rated cycle life:

• Under 500 cycles — well within expected life. Capacity loss is typically minor.
• 500–800 cycles — normal mid-life. You might notice shorter battery life than when the Mac was new, but no action needed unless Condition shows Service Recommended.
• 800–1,000 cycles — approaching Apple's rated limit. If capacity is below 80%, a replacement is worth considering.
• Over 1,000 cycles — past the rated design life. Expect reduced capacity and potentially erratic charge behaviour.

Cycle count alone isn't the whole story. A battery at 700 cycles with 90% capacity is in great shape. A battery at 400 cycles with 78% capacity has degraded faster than normal — that can happen with heavy use patterns or high-heat storage.

When to replace your battery

Apple recommends battery service when the Condition reads Service Recommended, which typically happens when maximum capacity falls below about 80%. At that point the battery still works, but your runtime will be noticeably shorter than when the Mac was new.

If you're running at 75% or below, you're essentially carrying a laptop that lasts 45% less than its rated life — often the point where replacing the battery makes more practical sense than managing around it.

Battery replacements can be done through Apple (with or without AppleCare+), an Apple Authorised Service Provider, or independently using iFixit guides — though DIY repairs on M-series MacBooks with adhesive-mounted batteries are more involved than on older models.