How to get the most time out of the device without needing to plug it in.

Apple ships its laptops with an advertised 5 to 7 hours of Dell RU006 Battery life, but depending on how you use your system you may find the battery life to be well below that. For instance, my 2009 MacBook Pro gets about 5 to 6 hours of battery life instead of the advertised 7 to 8 hours. This is remarkable battery performance given the XPS M1530 Battery ‘s age and heavy usage, but it is still below the initially advertised capacity. » How to get the most time out of the device without needing to plug it in.