There are a few tips I have when it comes to keeping track of your battery health and performance. You can do these things from inside your Macbook, or by using a great little application I discovered.
On the battery itself, there is a tiny little ‘button’, for lack of a better word. If you push this, a guage will light up, telling you how much charge is left in the battery. This works whether the battery is installed in the machine, or taken out of it like I have here.
Inside your Macbook, you can go up to the left hand corner, and click the Apple logo. Choose the “About this Mac”, and head to the System Profiler. Once there, click on the “Power” section. You’ll see all the battery information listed to the right. You can find out about:
- Charge information
- Charge remaining
- Full charge capacity
- Battery health
- Exact model information in case a replacement is ever needed
There’s also a program available called coconutBattery. coconutBattery isn’t just a tool which shows you only the current charge of your battery – it also shows you the current maximum capacity of it in relation to the original capacity your battery had as it left the factory.
You also get information about the battery-loadcycles (how often did you fully load your battery), the current charger (coconutBattery even warns you if you plugged in a wrong charger for your Notebook) and last but not least information about the age of your Mac. Best of all, you can save the current state of your battery, and then track its performance over time. Oh… and did I mention this program is absolutely free?
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