Check your battery health in System Settings

Open System Settings, then go to General > About. Click the System Report button. In the window that opens, select Power in the left sidebar. Look for the "Condition" line — it will say Normal, Replace Now, Service Recommended, or Permanent Failure. Normal means your battery is working as designed. Replace Now or Service Recommended means the battery has degraded enough that Apple recommends replacement. Permanent Failure means the battery cannot hold a charge reliably.

This is the official Apple method and takes about 30 seconds. The condition reading reflects the battery's chemical age, not just how much charge it holds right now. A battery can show Normal even if you only get four hours of use, because Normal just means it still meets Apple's minimum performance standard for your specific MacBook model.

Key Takeaways

  • System Settings > General > About > System Report > Power shows your battery's actual condition status in one place.
  • Normal condition does not mean your battery is new — it means it still meets the minimum standard for your MacBook model.
  • Replace Now or Service Recommended means the battery has degraded to the point where Apple suggests replacement, though it may still work.
  • Battery condition is separate from current charge percentage — a fully charged battery can still have poor condition.
  • Coconut Battery is a free third-party tool that shows additional details like cycle count and design capacity if you want more technical information.

What the condition labels actually mean

Normal means your battery retains at least 80 percent of its original design capacity. This is the threshold Apple uses across all MacBooks. A battery at 80 percent capacity can still power your machine for most of a workday, depending on what you are doing.

Replace Soon or Service Recommended appears when your battery has dropped below 80 percent capacity. At this point, you might notice shorter battery life than when the machine was new, but the battery is not broken. Many people continue using their MacBooks at this stage for months or years. Replacement is optional unless the shorter runtime bothers you.

Replace Now means your battery has degraded significantly — usually below 50 percent of design capacity. The machine may shut down unexpectedly even when the battery percentage shows charge remaining, because the battery cannot deliver power reliably anymore.

Permanent Failure means the battery cannot charge or hold charge at all. The machine will only run while plugged in.

Understanding battery cycles and why they matter

A battery cycle is one complete discharge from 100 percent to zero, or the equivalent spread across multiple partial charges. If you charge your MacBook from 50 percent to 100 percent, that counts as half a cycle. Most modern MacBook batteries are designed to retain 80 percent capacity for around 1,000 cycles, though this varies by model and year.

You can see your cycle count in the same System Report window where you checked condition — it is listed as "Cycle Count" under Power. A MacBook that is two years old with 400 cycles is aging normally. One with 800 cycles is aging faster, usually because it is charged multiple times per day or left plugged in constantly.

Cycle count alone does not determine when you need a replacement. A battery at 600 cycles might still show Normal condition, while another at 400 cycles might show Service Recommended, depending on how it was used and charged.

Why your battery drains faster than it used to

Shorter runtime usually comes from battery degradation, but not always. Check Activity Monitor (Applications > Utilities > Activity Monitor) and look at the CPU column sorted from highest to lowest. If one process is using 20 percent or more of your CPU constantly, that process is draining your battery faster than normal, even if the battery itself is healthy.

Background app refresh, location services, and Bluetooth can also reduce runtime. Go to System Settings > General > Login Items and remove applications you do not need to start automatically. Check System Settings > Privacy & Security > Location Services and disable it for apps that do not need it.

If your battery condition shows Normal but you are only getting two or three hours of use, the battery is probably fine — something else is consuming power. If condition shows Service Recommended or worse, the battery itself has degraded and replacement will restore most of your original runtime.

When to replace your battery versus when to wait

You do not have to replace your battery the moment it shows Service Recommended. If you work at a desk most of the time and your MacBook is usually plugged in, you can wait until Replace Now appears or until the shorter runtime actually affects your work. If you travel frequently or work away from outlets, replacing at Service Recommended makes sense because you will notice the difference when ready.

Battery replacement at an Apple Store or authorized service provider costs between $129 and $199 depending on your MacBook model. Some third-party repair shops charge less, but using non-Apple batteries may affect your warranty. If your MacBook is still under AppleCare+, battery replacement is covered if the battery has degraded below 80 percent capacity.

Older MacBooks with non-removable batteries (most models from 2012 onward) require a technician to replace the battery. Newer models with removable batteries are rare. Plan for a few hours if you go to Apple, or a day or two if you use a mail-in service.

Using third-party tools for more detail

Coconut Battery is a free process that shows the same condition information as System Settings, plus additional technical details like design capacity, current capacity, and charge cycles in a single window. It updates in real time as you use your machine, so you can see how much power different applications drain.

Coconut Battery does not change anything — it only displays information your MacBook already knows. It is useful if you want to track your battery degradation over time or if you prefer having all the numbers in one place instead of navigating System Settings.

iStat Menus is a paid process ($16.99) that includes battery information alongside CPU temperature, memory use, and other system stats. It is not necessary for checking battery condition, but some people find it useful if they already monitor other system health metrics.

Frequently Asked Questions

Can I improve my battery condition once it has degraded?

No. Battery degradation is chemical and irreversible. Calibrating your battery (letting it fully drain and then fully charging it) does not restore capacity. Disabling features like background refresh might extend runtime slightly, but it will not change the condition reading.

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

Modern MacBooks manage this better than older machines. Once your battery reaches 100 percent, the charger stops actively charging and switches to trickle power to maintain the charge. Leaving it plugged in constantly will still cause some degradation over time, but not dramatically faster than normal use. If you work at a desk, plugging in is fine.

Why does my battery show Normal but I only get three hours of use?

Normal condition means the battery meets Apple's minimum standard, not that it is new. If your MacBook is three years old, Normal might mean 80 to 85 percent of original capacity, which translates to noticeably shorter runtime than when it was new. Check Activity Monitor to rule out a power-hungry process first.

Should I replace my battery before it shows Replace Now?

Only if the shorter runtime affects your daily work. If you are mostly plugged in, you can wait. If you travel and need all-day battery life, replacing at Service Recommended makes sense because you will feel the difference when ready.

Can I replace the battery myself?

On most modern MacBooks, no — the battery is glued to the case and requires disassembly by a technician. Older MacBooks (pre-2012) sometimes had user-replaceable batteries, but those are rare now. Check your specific model's repair guides on iFixit to see if self-replacement is possible.