{"id":738,"date":"2026-10-13T17:07:09","date_gmt":"2026-10-13T16:07:09","guid":{"rendered":"https:\/\/stigern.net\/blog\/?p=738"},"modified":"2026-10-13T17:11:19","modified_gmt":"2026-10-13T16:11:19","slug":"wattbar-1-3-a-graph-the-apps-using-the-most-power-and-a-page-of-its-own","status":"publish","type":"post","link":"https:\/\/stigern.net\/blog\/wattbar-1-3-a-graph-the-apps-using-the-most-power-and-a-page-of-its-own\/","title":{"rendered":"Wattbar 1.3 \u2013 a graph, the apps using the most power, and a page of its own"},"content":{"rendered":"\n

A few days ago I wrote about Wattbar<\/a>, the little power meter I made for my Mac’s menu bar. Version 1.3 is out now, and it’s the biggest update so far. Wattbar also has a page of its own: stigern.net\/software\/wattbar<\/a>.<\/p>\n\n\n\n

\"The
Wattbar 1.3: where the power goes, what it has been the last minutes, and which apps use the most.<\/figcaption><\/figure>\n\n\n\n

What happened, and who did it<\/h2>\n\n\n\n

Under the power flow there is now a graph of the last 30 minutes, with the peak and the average. Hold the pointer over it to read what the Mac was using at that moment. That’s what I missed the most: seeing that something pulled 70 W a few minutes ago, and finding out when.<\/p>\n\n\n\n

Below the graph are the apps using the most power right now, estimated from the energy macOS counts for each app. When the number is high, that’s usually the answer to why. One click opens Activity Monitor for the rest.<\/p>\n\n\n\n

Memory the same way<\/h2>\n\n\n\n

A switch at the top of the graph flips the panel from Power<\/em> to Memory<\/em>. Then the graph shows memory use over the last half hour, and the list shows the apps holding the most memory.<\/p>\n\n\n\n

\"The
The panel switched to Memory.<\/figcaption><\/figure>\n\n\n\n

The battery and the charger<\/h2>\n\n\n\n

The panel now shows the charger’s rating, voltage and current, like 65 W charger \u00b7 20 V \u00b7 3.2 A<\/em>, which is handy when one charger seems slower than another. For the battery it shows the time left or the time to full, its health, and how many cycles it has been through.<\/p>\n\n\n\n

Notifications<\/h2>\n\n\n\n

Wattbar can now tell you when something is off. They are all off by default, and you set the limits yourself:<\/p>\n\n\n\n