Net battery power
Separate energy entering or leaving the battery from the connected adapter’s advertised rating.
Battery intelligence, not battery clutter
Know what your MacBook battery is doing.
See live net power, health and temperature. Build a private history. Get a clear explanation when a charger cannot keep up or charging behaviour deserves attention.
Free live monitoring and 24-hour history. Optional Anode Pro is one payment, £3.99 in the UK; Apple shows your local price.
No accountNo adsNo analytics SDKNo subscription
A better answer than “74 percent”
Live context, useful history, honest limits
High-charge exposure
See how much recorded plugged-in time was spent at or above 80 percent.
Thermal context
Compare temperature peaks with charging sessions and workload changes.
Health over time
Keep capacity, condition and cycle count together without treating one sample as a diagnosis.
Private on-device timeline
Spot the pattern behind the symptom.
Anode records only battery and power fields exposed by macOS. The free view covers 24 hours. Its optional Pro unlock adds up to 90 days, charging-session comparisons and CSV export with one purchase.
- Charge and net power charts
- Average draw and temperature peaks
- Charging-session summaries
- Clear-history control
Actionable, not alarmist
Know what to check next.
Warnings explain what Anode observed and distinguish battery power from adapter capability. The app never claims to diagnose hardware or override macOS charging controls.
Why a plugged-in Mac can still drain →Real app screens
Native, quiet and designed for the menu bar
Free to start. Pro when you need more.
Try today’s readings. Keep the longer story.
No trial countdown and no subscription. Start with the free app, then decide whether longer history and export are useful to you.
Anode Free
£0 to download
For live readings and the last day’s pattern.
- Live battery and power readings
- 24-hour battery history view
- Low-battery and full-charge alerts
- No account, ads or analytics SDK
Anode Pro
£3.99 one-time purchase in the UK
Everything in Free, with more room to compare.
- 7-, 30- and 90-day history views
- Charging-session comparisons
- CSV export for your own analysis
- Every colour theme and advanced alert
Built for MacBooks running macOS 14 or later. Readings depend on what your Mac exposes. Apple shows the current price for your region before you confirm a Pro purchase.
Where do I buy Anode Pro?
Download the free app from the Mac App Store. Open Anode’s menu-bar panel, select Anode Pro, then choose Unlock Pro. Apple handles the purchase; there is no checkout on this website.
I already paid for Anode. Do I need to pay again?
Customers who acquired paid-upfront Anode 1.0 or 1.1 retain Pro access. If it is not showing, use Restore Purchase in Anode while signed into the Apple Account that acquired it before making another purchase. The same restore option is available for an existing Pro purchase.
Does upgrading instantly create 90 days of history?
No. Anode retains up to 90 days of readings collected locally while it is running, even before an upgrade. Pro reveals the longer history that actually exists on this Mac; it cannot recreate missing or cleared readings. You can clear the stored history in Settings.
Battery questions, carefully answered
MacBook charging and health guides
Manual charging checklist
What does your charging message mean?
Separate a macOS charging hold, limit and observations that need attention. No device access.
Check the next stepInteractive reading explainerWhat do your battery watts mean?
Enter a signed net reading and power connection. No upload or device access.
Explain a readingMacBook battery guideWhy is my MacBook plugged in but still draining?
Understand negative battery watts while connected to power, then separate workload, cable and adapter causes.
Read guideMacBook battery guideMacBook charging slowly: how to read the watts
Learn the difference between adapter rating and net battery charge power before blaming a charger or cable.
Read guideMacBook battery guideWhat does MacBook battery health percentage mean?
Interpret maximum capacity, condition and change over time without treating one third-party number as a diagnosis.
Read guideMacBook battery guideMacBook battery cycle count explained
Understand how partial discharges become one cycle and why the maximum depends on your exact Mac model.
Read guideMacBook battery guideHow to understand MacBook battery temperature
Use battery-temperature history as context for charging pauses and heavy workloads without confusing it with room temperature.
Read guideMacBook battery guideWhy keep a private MacBook battery history?
Turn isolated battery readings into patterns for charging sessions, heat, health and time spent at high charge.
Read guideMacBook battery guideMacBook charge limit and high-charge exposure
Understand macOS Charge Limit, Optimised Battery Charging and what Anode means by time above 80 percent.
Read guideMacBook battery guideWhy a MacBook may stop charging at 80 percent
Check Charge Limit, Optimised Battery Charging and temperature before assuming the battery or adapter has failed.
Read guideMacBook battery guideMacBook battery watts: positive, negative and zero
Decode net battery power in plain language and understand why it differs from charger wattage.
Read guideMacBook battery guideAnode, AlDente, coconutBattery or macOS: which battery tool fits?
Compare charging control, multi-device battery details and Anode’s private power history. Choose by the job, not a battery-health promise.
Read guide