coconutBattery Plus for macOS

Description

Laptop users who can't afford a surprise shutdown, and anyone trying to decide whether an ageing Mac just needs a new battery. That's the audience for coconutBattery Plus.

It reads the live data your Mac already collects about its battery and puts it on one screen. Current charge, maximum capacity compared with when the device was new, battery age, and how many charge cycles it has clocked up. The Plus edition adds iOS device diagnostics over a USB connection.

Spot a used Mac with a worn-out battery

• Checking whether a second-hand Mac's battery has been through hundreds of cycles.
• Spotting a gradual capacity drop before it becomes a problem.
• Comparing battery health across several devices from one Mac.

Reads macOS data, won’t revive a dying battery

• It reports what macOS reports — it can't fix a failing battery.
• Version 4.4 needs macOS 12 Monterey or later.

Apple Silicon support and iPhone over USB

Does it work with an M1 or M2 Mac? Yes, version 4.4 runs natively on Apple Silicon and Intel 64-bit Macs. If you plug in an iPhone or iPad, the app reads its battery data over USB — the same way it reads a MacBook battery locally.

Will it drain my battery just by running? No. It reads existing system data and uses negligible CPU. You can leave it open in the background without worrying about it eating into your charge.

Is coconutBattery Plus safe to run alongside other system utilities? It doesn't install kernel extensions or launch daemons. The app sits in your Applications folder and only runs when you open it. No conflicts with CleanMyMac, iStat Menus or similar tools.

Some people search for a coconutBattery Plus crack thinking it'll unlock extra features. The Plus edition already includes everything — iOS device support, advanced details, and the history tracker. If you go with a coconutBattery Plus crack, just verify the binary's code signature is intact so the readings stay reliable.

Unlock your iPhone or swap that power-only cable

iPhone battery data not showing? Unlock the device and trust the computer when the prompt appears. If the prompt doesn't show, try a different USB port or cable. Lightning cables that only carry power are surprisingly common.

Capacity reading seems wrong. macOS recalibrates its battery percentage estimate periodically. Let the battery run down to about 10%, then charge it to full without interruption. After that, coconutBattery Plus should show figures that match reality. If the Mac has been plugged in for weeks, the reading can drift.

Battery manufacturer shows "Unknown" on a Mac. Version 4.4 fixed this for most models, but some third-party replacement batteries don't report manufacturer data at all. The app can't display what the battery controller doesn't provide.

Workflow: checking a used MacBook before buying

You're meeting someone to look at a second-hand MacBook. Take a USB stick with coconutBattery Plus already copied onto it. This takes two minutes at home and saves a lot of guesswork later.

1. Open the disk image on your own Mac and drag the app onto a USB stick. Eject the stick.
2. At the meeting, plug the stick into the MacBook you're inspecting. Copy coconutBattery Plus to the desktop — don't run it from the stick, it needs write access for temporary files.
3. If macOS blocks the app, right-click it and choose Open. Confirm you want to run it.
4. Look at three numbers: cycle count, full charge capacity, and manufacture date. Compare the capacity percentage against what the seller told you.
5. Click the device age line. It shows the Mac's production date from the serial number. If it's three years old but the battery was manufactured six months ago, you know it's been replaced.
6. Connect any iOS device the seller includes. The same capacity and cycle data appears for it.

You walk away knowing exactly what you're buying, or you spot a battery that's on its last legs and negotiate accordingly.

What’s new

• Adds support for macOS Tahoe and iOS/iPadOS 26.
• Adds USB device connection details in Advanced Details.
• Fixes battery manufacturer information display on Mac.

Requirements

• macOS 12 Monterey or later
• Apple Silicon or Intel 64-bit Mac