For an overview of real world usage of this app take a look at our article The new MBP power efficiency is impressive

This will place a number in your menu bar that is constantly reading and updating the current power output (or input) of your battery.

Using a Mac on battery makes it look like a continuous flow from 100% charge down toward 0%. But we did a bit of research on this assumption and found it couldn’t be further from the truth.

What actually happens during the life span of a single battery charge is typically that the usage goes in spikes, and while a healthy battery will usually hover around minimal usage, it is common to have processes that are unnecessary and that you are usually unaware of taking your battery usage 5 to 7 times higher than normal. That’s … Read More »