MacBook Pro battery life: ratings and real use

Apple's current MacBook Pro ratings

These figures are from Apple's US specifications, checked on 23 October 2026. Match both the screen size and chip in Apple menu › About This Mac; “MacBook Pro” alone isn't enough to pick a row.

Apple's advertised maximums, not measurements by Tend.
MacBook Pro	Video streaming	Wireless web	Battery
14-inch M5	Up to 24 h	Up to 16 h	72.4 Wh
14-inch M5 Pro	Up to 22 h	Up to 14 h	72.4 Wh
14-inch M5 Max	Up to 20 h	Up to 13 h	72.4 Wh
16-inch M5 Pro	Up to 24 h	Up to 17 h	100 Wh
16-inch M5 Max	Up to 22 h	Up to 16 h	100 Wh

The largest chip doesn't automatically have the longest advertised runtime. For example, the 14-inch M5 Max and M5 Pro have the same nominal battery size but different ratings. That comparison describes Apple's tests; it doesn't predict the time a particular video project will take or the energy it will consume.

MacBook Pro M4 battery life

For the 2024 generation, Apple's archived model specifications give the following figures. They remain useful for an existing machine or a used purchase; don't apply today's M5 table to an M4 laptop.

2024 model	Video streaming	Wireless web
14-inch M4	Up to 24 h	Up to 16 h
14-inch M4 Pro	Up to 22 h	Up to 14 h
14-inch M4 Max	Up to 18 h	Up to 13 h
16-inch M4 Pro	Up to 24 h	Up to 17 h
16-inch M4 Max	Up to 21 h	Up to 14 h

Apple's M4 test notes describe web browsing and 1080p video streaming in Safari over Wi-Fi, with controlled display brightness and keyboard backlighting off. They aren't mixed office-work, video-call or rendering benchmarks. Battery age and your configuration also matter.

What “real use” changes

A bright display, a demanding foreground task, background sync and devices powered from the Mac all share the same battery. Two people with the same model can therefore get different working days without either battery being faulty.

Our existing power-use measurements describe one named machine: a 14-inch 2023 M2 Max MacBook Pro with 32 GB memory, running macOS 27.0.1 on 20 October 2026. Its twelve one-minute averages during developer work with Chrome and messaging ranged from 35.8 to 49.2 W, averaging about 44 W.

That Mac was plugged into a 96W adapter and not charging. The session didn't measure unplugged endurance, screen brightness wasn't recorded, and the registry fields used aren't documented by Apple. It demonstrates why a busy Mac's demand can be far above a light-use rating; it supplies no measured M4 or M5 battery-life result.

For your own comparison, hold brightness, task, accessories and power mode steady. Compare two similar sessions rather than one minute during a video export against an idle desktop.

Estimate your own runtime

The useful relationship is hours ≈ usable battery energy in Wh ÷ average whole-Mac draw in W. It's a planning estimate, with uncertainty in capacity and future workload, rather than a promise to the minute.

For an illustrative example, suppose a 100 Wh battery has 90% Maximum Capacity, you start at 80%, and you want a 20% reserve. The planned energy budget is approximately 100 × 0.90 × (0.80 − 0.20) = 54 Wh. At an assumed average of 9 W that is about six hours; at 18 W it is about three. Those are arithmetic examples, not readings from a tested Mac.

Use the current whole-Mac draw averaged across representative work, not one app's estimate or the adapter's printed rating. A 140W charger doesn't mean the laptop continuously consumes 140 W. The watts guide explains the readings and their limits.

In Activity Monitor › Energy, Energy Impact is a relative score, so dividing watt-hours by it won't produce hours. Apple's time-remaining field is also an estimate that changes with what you do next.

Check charge and condition separately

On macOS 15 Sequoia, 26 Tahoe and 27 Golden Gate, open System Settings › Battery › Battery Health for condition and Maximum Capacity. Current charge is how full it is now; Maximum Capacity compares its capacity with when it was new. Cycle count is another piece of context.

On Apple silicon with macOS 26.4 or later, Charge Limit can deliberately stop charging at a selected level from 80% to 100%. Optimized Battery Charging can also hold a charge. A working 80% limit gives you less energy for today's unplugged session than a full charge; it isn't by itself evidence of a bad battery.

If runtime has changed abruptly, start with the workload and charging state. If the battery reports Service Recommended, or the Mac repeatedly loses power unexpectedly, use the battery-health guide and arrange evaluation when appropriate.

Make the charge last longer

Lower brightness to a comfortable level, quit optional demanding apps and disconnect devices you don't need to power. Use Low Power Mode when its performance trade-off suits the task. Check that the work still completes acceptably; a lower instantaneous wattage isn't the same as less total energy for a much longer job.

For a persistent shortfall, follow the battery-drain checklist. An export running faster, an app staying busy in the background and an aging battery call for different responses.

How Tend helps

Tend shows whole-Mac watts, time remaining, battery health and cycles for free, alongside each app's estimated power share. Per-app figures cover processes in your account, while system activity remains part of the whole-Mac total. Free energy history covers 24 hours; Pro retains up to 30 days.

Questions

How long should a MacBook Pro battery last?

Current M5 models are rated by Apple for up to 20–24 hours of video streaming or 13–17 hours of wireless web, depending on chip and size. Your runtime depends on workload, brightness, charge level and battery condition.

What is the M4 MacBook Pro battery life?

Apple rates the 14-inch M4 for up to 24 hours of video streaming or 16 hours of wireless web. M4 Pro and M4 Max figures differ by screen size, so use the model table above.

Does a 16-inch MacBook Pro always last longer?

No single result covers every workload. The 16-inch has a larger nominal battery and higher wireless-web ratings in the tables, but chip, task, brightness and battery condition affect your result.

Did Tend test M5 MacBook Pro battery endurance?

No. This guide cites Apple’s specifications and a prior plugged-in M2 Max power-use session. The arithmetic examples are estimates, not measured unplugged endurance.