Check your battery’s condition and live power for free. Pro helps you investigate overnight drain, spot power-hungry apps and follow battery wear.
Apple Silicon · macOS 14 or later. Installation guide.
Pro is a one-time purchase for up to two Macs.
Lower battery this morning? See how much charge was lost, how long the Mac slept and the wake events macOS recorded.
Review recent sleeps together, then check what is keeping your Mac awake right now. Recognised wake reasons have plain-English labels, with the original details available too.
Useful clues to investigate. If a reading is missing or unclear, WhatBattery says so.
Explore sleep insights →
See whether the battery is charging, holding steady or draining, along with the connected charger’s reported power.
Pro adds your apps’ power use and a record of charging sessions. On supported MacBook Pro models, it also flags chargers whose reported capability is too low for the model.
Check the charging setup and what the Mac is doing before deciding what to change.
See power and charging features →
Check battery health, cycle count and Apple’s service condition. Charge tells you how full it is today; health estimates how much capacity it can still hold.
Pro follows the trend over time and can estimate when your Mac may reach 80% health once there is enough reliable history. That is a reference point, rather than a fixed replacement date.
A small change in the reading isn’t, by itself, a reason to replace the battery.
Explore health history and forecasts →
Bring supported accessories and connected Apple devices into the same view.
Live levels for supported mice, keyboards, trackpads and AirPods are free. Pro adds history, estimated time remaining and low-battery alerts.
See supported accessories →Read battery health from your Mac over a trusted USB or Wi-Fi connection. There’s no extra app to install on the device.
See how device checks work →Save a battery report for a support conversation, service appointment or resale listing. Export the underlying readings when you need more detail.
See reports and export →The free app gives you a useful battery check today. Pro adds the history and detail to investigate further.
£0
Your battery and accessories at a glance.
No licence key needed for the free app.
£9.99 once
Everything in Free, plus a closer look.
Up to two Macs · 14-day money-back guarantee
Built by Darryl at Bitmoor, alongside WhatCable and WhatPort.
Meet WhatCable →WhatCable has been featured by
WhatBattery requires an Apple Silicon Mac running macOS 14 or later. Battery health and sleep features are for Mac laptops; available readings vary by device. Read the installation guide.
The Sleep tab is part of Pro. The free app includes Mac battery health, live battery power and supported accessory levels, so you can start there before choosing an upgrade.
No. WhatBattery reads and explains the available information. It doesn’t enforce a charging limit or change your Mac’s charging settings.
History is stored locally. Optional wear comparison is off by default, and reports are saved where you choose. Licence activation and update checks use online services. Read the privacy details.
Download the ZIP, drag WhatBattery into Applications and open it. The app is signed and notarised by Apple. See the full guide and Homebrew option.
Start with a free battery check on your Mac.