Charging time depends on which MacBook you own and which charger you use
A MacBook charges in roughly 1.5 to 3 hours with the charger that came in the box, depending on the model year and processor. Older Intel-based MacBooks take longer — sometimes 3 to 4 hours. Newer models with Apple's M-series chips (M1, M2, M3, M4) charge faster because they use less power overall and support faster charging speeds. The actual time also depends on whether you're using the device while it charges: a MacBook charging while you work or stream video will take longer than one sitting idle.
The charger wattage matters more than you might think. A 13-inch MacBook Air comes with a 30-watt charger, but you can use a higher-wattage charger (like a 67-watt or 96-watt model) to cut charging time significantly. A 14-inch or 16-inch MacBook Pro with a 96-watt or 140-watt charger will charge much faster than the same laptop using a lower-wattage charger. If you're using a third-party USB-C charger from your phone or another device, charging will be slower because those chargers typically deliver 18 to 25 watts.
Key Takeaways
- MacBooks with M-series chips charge in 1.5 to 2.5 hours with their included charger; older Intel models take 3 to 4 hours.
- Using a higher-wattage charger than the one included can reduce charging time by 30 to 50 percent.
- Charging while using your MacBook — especially for video or photo work — adds 30 minutes to an hour to the total time.
- Battery health degrades slightly over time, so a three-year-old MacBook may charge 10 to 15 percent slower than when new.
- Leaving your MacBook plugged in after it reaches 100 percent does not damage the battery, because macOS manages charging automatically.
Charger wattage and what it means for your charging speed
The wattage printed on your charger tells you how much power it can deliver. A 30-watt charger delivers 30 watts; a 96-watt charger delivers 96 watts. Your MacBook will only draw as much power as it needs, so using a 140-watt charger on a 13-inch Air won't damage it — the laptop straightforward won't use all 140 watts. But it will charge faster than with a 30-watt charger because more power is available.
Here's what this looks like in practice: a 14-inch MacBook Pro with an M3 Max chip charges from empty to full in about 1.5 hours with the included 96-watt charger. Using a 30-watt charger on the same laptop takes 3 to 3.5 hours. The difference is real and measurable. If you already own a higher-wattage USB-C charger from a laptop or tablet, it will work with your MacBook and charge it faster than the included charger — as long as the charger supports USB Power Delivery, which most modern chargers do.
Apple sells replacement chargers in 30, 35, 45, 61, 67, 96, and 140-watt versions. The 140-watt charger is designed for the 16-inch MacBook Pro and is overkill for smaller models, but it will work. Third-party chargers from Anker, Belkin, and others often cost less and perform similarly if they're rated for the same wattage and support USB Power Delivery.
Battery age and how it affects charging time
A MacBook battery loses capacity over time. After 300 to 500 charge cycles — roughly one to two years of normal use — a battery typically retains 80 to 90 percent of its original capacity. After three years, you might see 70 to 80 percent. This doesn't mean the battery is failing; it's normal wear. But it does mean charging takes slightly longer because the battery has less total capacity to fill.
You can check your battery's current health in macOS. Click the Apple menu, select System Settings, then Battery, then Battery Health. The window shows your current maximum capacity as a percentage. If it says 80 percent, your battery holds 80 percent of the charge it did when new. Charging from 0 to 80 percent takes roughly the same time as it always did, but reaching 100 percent on an older battery may take a few minutes longer because the charging rate slows near full capacity to protect the battery.
If your MacBook is three or more years old and you notice charging takes significantly longer than it used to — more than an hour longer than the times listed above — the battery may need replacement. Apple's service centers can replace MacBook batteries, though the cost ranges from $129 to $199 depending on the model. Some third-party repair shops offer battery replacement for less, but Apple's warranty covers battery replacement if capacity drops below 80 percent within the first year.
Why using your MacBook while charging slows things down
When you charge a MacBook while using it, the charger has to power both the laptop and the battery at the same time. This splits the available power. If your charger delivers 96 watts and your MacBook is drawing 40 watts to run, only 56 watts go toward charging the battery. The result is slower charging — sometimes 30 to 50 percent slower depending on what you're doing.
Video editing, photo processing, and 3D rendering are power-hungry tasks that slow charging the most. Browsing the web or writing in a text editor uses much less power, so charging is only slightly slower. If you want the fastest charge, close unnecessary programs, lower the screen brightness, and let the MacBook sit idle while plugged in. You'll see the full charging speed of your charger.
This is why MacBook Pros designed for professional work often come with very high-wattage chargers — a 140-watt charger lets you work on demanding tasks while still charging the battery at a reasonable speed. A 30-watt charger on the same laptop might barely charge the battery while you're working, especially if you're rendering video or processing large photo libraries.
Temperature and environmental factors
MacBooks charge slower in cold environments and may not charge at all if the temperature drops below 50 degrees Fahrenheit (10 degrees Celsius). This is a safety feature — charging a lithium battery in extreme cold can damage it permanently. If your MacBook is cold, let it warm up to room temperature before plugging it in. Charging in a warm room (around 68 to 72 degrees Fahrenheit) is ideal.
Heat also affects charging, but in the opposite way. If your MacBook gets very hot while charging — hotter than you can comfortably hold — it may throttle the charging speed to protect the battery. This is rare with normal use, but it can happen if you're charging in direct sunlight or in a very warm room while also running demanding tasks. Moving to a cooler location or closing power-hungry programs will let charging resume at full speed.
Comparing charging times across MacBook models
Different MacBooks charge at different rates because they have different battery capacities and power requirements. A 13-inch MacBook Air has a smaller battery (around 52 watt-hours) than a 16-inch MacBook Pro (around 140 watt-hours), so it charges faster in absolute time. But the Pro also comes with a more powerful charger, which partially offsets the larger battery.
Here are approximate charging times from empty to full with the included charger, on a new battery, with the MacBook idle:
| Model | Charger Wattage | Charging Time |
|---|---|---|
| 13-inch MacBook Air (M2 or M3) | 30W | 1.5 to 2 hours |
| 14-inch MacBook Pro (M3, M3 Pro, M3 Max) | 67W to 96W | 1.5 to 2 hours |
| 16-inch MacBook Pro (M3 Pro, M3 Max) | 96W to 140W | 1.5 to 2.5 hours |
| MacBook Air 13-inch (Intel, 2017–2019) | 45W | 2.5 to 3 hours |
| MacBook Pro 13-inch (Intel, 2017–2019) | 61W | 2.5 to 3.5 hours |
| MacBook Pro 15-inch (Intel, 2017–2019) | 87W | 3 to 4 hours |
These times assume the battery is completely empty and the MacBook is not in use. Real-world charging is often faster because most people don't let the battery drop to zero before charging. Charging from 20 percent to 80 percent is noticeably quicker than charging from 0 to 100 percent because the charging rate slows near full capacity to protect the battery.
Fast charging and battery longevity
Using a higher-wattage charger to charge your MacBook faster does not harm the battery. Apple's charging system automatically manages the power flow to keep the battery safe. The battery receives only as much power as it can safely accept at any given moment. Near full capacity, the charging rate automatically slows to extend battery life — this happens regardless of charger wattage.
Leaving your MacBook plugged in after it reaches 100 percent is also safe. macOS has a feature called Optimized Battery Charging that learns your charging patterns and may hold the battery at 80 percent until shortly before you typically unplug the laptop. This reduces wear over time. You can disable this feature in System Settings if you prefer to always charge to 100 percent, but there's no safety risk either way.
The biggest factor in battery longevity is avoiding extreme temperatures and not letting the battery sit at 0 percent for extended periods. Charging your MacBook regularly and using it normally will keep the battery healthy for three to five years.
Frequently Asked Questions
Can I use any USB-C charger with my MacBook?
Any USB-C charger that supports USB Power Delivery will work with your MacBook. The charger doesn't have to be made by Apple. Third-party chargers from Anker, Belkin, and others are compatible and often cheaper. Make sure the charger is rated for at least 30 watts for a MacBook Air or 60 watts for a MacBook Pro. Using a lower-wattage charger will work but charge more slowly.
Why does my MacBook charge slower than it used to?
Battery capacity decreases over time, so older MacBooks charge slightly slower. If charging is much slower than normal, check your battery health in System Settings. If capacity is still above 80 percent, try restarting your MacBook or resetting the System Management Controller (SMC) by shutting down, waiting 30 seconds, and turning it back on. If the battery is below 80 percent and your MacBook is under warranty, contact Apple about a replacement.
Does it hurt to leave my MacBook plugged in overnight?
No. macOS manages charging automatically and will not overcharge the battery. If Optimized Battery Charging is enabled, the laptop may hold the battery at 80 percent overnight and charge to 100 percent shortly before you typically wake up. This is designed to reduce wear. You can safely leave your MacBook plugged in as long as you need.
Will a 140-watt charger damage my MacBook Air?
No. Your MacBook will only draw the power it needs, regardless of the charger's maximum wattage. A 140-watt charger will charge a MacBook Air faster than the included 30-watt charger, but it won't cause any damage. The battery and charging system are designed to handle chargers with different wattages.
How do I know if my charger is broken?
If your MacBook doesn't charge at all when plugged in, try a different USB-C cable first — the cable fails more often than the charger. If a different cable doesn't work, try the charger on another device that accepts USB-C power. If the charger works on another device but not your MacBook, the MacBook's charging port may need service. If the charger doesn't work on any device, it's likely broken and needs replacement.