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With coconutBattery you’re always aware of your current battery health. It shows you live information about your battery such as how often it was charged and how is the current maximum capacity in relation to the original capacity your battery had when it left the factory.
You are also able to save the current maximum capacity of your battery. So you can see the changes of your battery health over time.
Thanks, @secretsquirrel
DeepSleep will allow your Mac laptop or desktop to sleep without using any power or drain the batteries (also known as hibernate for people that are used to Windows PCs). It saves everything to disk and stops using power completely.
Via Macworld.
Low Battery is a simple, elegant app that lets you decide when to get a low battery warning, and safely sleeps or hibernates your laptop before it dies.
gfxCardStatus is a menu bar application for OS X that allows users of 15” and 17” late 2008 — 2012 MacBook Pros to view which GPU is in use at a glance, and switch between them on-demand.
As shown above, gfxCardStatus also lets you choose whether to use integrated, discrete or dynamic graphics depending on the power source.
On a Retina Macbook Pro, I’m getting over eight hours of battery life using the integrated-only option (as opposed to around six when using the standard dynamic switching).
cellout is a simple battery status printer.
With Battery Health, you can easily see all the important information about your MacBook’s battery, such as current charge level, battery capacity, power usage, number of times it has been charged and much more.
power_mon is a self contained application that checks the battery status and if charged or low will pop up a small X window.
Handy if you use a window manager without a status bar or conky.
BatterySqueezer extends the battery life of your computer and makes your computer faster by throttling notoriously resource hungry applications in the background.
I’m not sure this would extend battery life by a huge amount, but handy to have around if you’re on an older laptop.
UnPlugged is an application to notify when the power cord of the Mac is unplugged or plugged in.
