Fastest Method
Check your MacBook battery in your browser
Open our free Battery Test tool in Chrome or Edge on your MacBook. It instantly reads your current battery level, charging status, estimated time to full charge, and estimated time until empty — directly from macOS via the browser Battery Status API.
Open Battery TestThe browser tool works in Chrome and Edge on macOS. Note that Safari does not support the Battery Status API, so the tool will show "Not Supported" if you open it in Safari. For cycle count, condition rating, and full battery capacity details, use the System Information method below — those require macOS-level access that no browser tool can provide.
How to Check Battery Cycle Count in System Information
System Information is the most detailed built-in battery report on macOS. It shows your cycle count, battery condition, full charge capacity, and more.
Open System Information
Hold Option and click the Apple menu () in the top-left corner. Select System Information. Alternatively, press Command + Space, type "System Information", and press Enter.
Navigate to Power
In the left sidebar under Hardware, click Power. The right pane shows the complete battery report.
Read the Battery Report
Under Battery Information, you will see: Charge Remaining (mAh), Fully Charged (Yes/No), Charging (Yes/No), Full Charge Capacity (mAh), Health Information → Cycle Count, and Condition (Normal / Replace Soon / Replace Now / Service Battery).
| Field | What it means |
|---|---|
| Cycle Count | Number of full charge cycles completed. Apple rates most MacBook batteries for 1,000 cycles before reaching 80% capacity. |
| Full Charge Capacity (mAh) | How much charge the battery can hold today. Compare to the original design capacity to estimate health percentage. |
| Condition: Normal | Battery is performing as expected. No action needed. |
| Condition: Replace Soon | Battery is beginning to hold less charge than its original design. Still functional but plan for replacement. |
| Condition: Replace Now | Battery capacity is significantly reduced. Replace as soon as possible. |
| Condition: Service Battery | Battery is outside normal parameters. Contact Apple Support or an authorised service provider. |
Check MacBook Battery via Terminal
If you prefer the command line, open Terminal (Applications → Utilities → Terminal or Command + Space → "Terminal") and run these commands:
Full battery report — cycle count, condition, capacity, temperature
system_profiler SPPowerDataType
Cycle count only
system_profiler SPPowerDataType | grep "Cycle Count"
Battery condition
system_profiler SPPowerDataType | grep "Condition"
Full charge capacity and current charge (in mAh)
system_profiler SPPowerDataType | grep -E "Capacity|Charge"
Live battery info via ioreg (updates in real time)
ioreg -rn AppleSmartBattery | grep -i "capacity\|cycle\|temperature\|charging"
MacBook Battery Cycle Count — What It Means
A charge cycle is one full discharge and recharge of your battery's total capacity. Two 50% discharges count as one cycle. Apple rates MacBook batteries — including all M-series models — to retain up to 80% of their original capacity after 1,000 charge cycles.
0 – 300 cycles
ExcellentThe battery is relatively new. Capacity degradation is minimal — typically less than 5%. You should be getting close to the advertised battery life on your model.
300 – 700 cycles
GoodNormal wear for a laptop used daily for 2–4 years. You may notice marginally shorter battery life compared to when the MacBook was new, but day-to-day use should still be comfortable.
700 – 1,000 cycles
Consider ReplacementApproaching Apple's rated end-of-life threshold. Capacity has likely degraded to 85–90% of original. Battery life per charge is noticeably shorter. macOS may start showing "Replace Soon" in the menu bar.
1,000+ cycles
ReplaceBattery is past Apple's design threshold. Capacity is 80% or less of original. Consider booking a battery replacement at an Apple Store or Apple Authorised Service Provider.
Check your live battery level in the browser
Our Battery Test tool shows your current battery percentage, charging state, and estimated time remaining — instantly in Chrome or Edge on your MacBook. No installs needed.
Frequently Asked Questions
How do I check MacBook battery health on macOS Ventura or Sonoma?
Go to System Settings → Battery. At the top of the page you'll see the current battery percentage and charging status. For cycle count and condition, hold Option and click the Apple menu → System Information → Power. Or run system_profiler SPPowerDataType in Terminal. You can also use our Battery Test tool in Chrome for a live reading.
What is a good cycle count for a MacBook?
Any cycle count below 300 is excellent. Up to 700 is still good for regular use. Apple rates all MacBook batteries released since 2010 to maintain 80% capacity through 1,000 cycles. If you're at 500 cycles with a "Normal" condition rating, there's nothing to worry about — the battery has plenty of life left.
Why does my MacBook show "Service Battery" at a low cycle count?
"Service Battery" is triggered by condition, not just cycle count. A battery can degrade faster than expected due to heat exposure, leaving the laptop plugged in at 100% for extended periods, or a manufacturing defect. A low cycle count with "Service Battery" is unusual and may qualify for a free replacement under warranty or the Apple Battery Service Program — contact Apple Support to check.
Does macOS Optimized Battery Charging help extend battery lifespan?
Yes. Enabled by default in System Settings → Battery → Battery Health → Optimized Battery Charging, this feature learns your daily charging schedule and delays charging past 80% until just before you usually unplug. Keeping the battery between 20–80% reduces chemical stress and meaningfully extends the number of cycles before significant degradation occurs.