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Extend Your Dell Latitude d400 Series Battery 
Laptops tend to lose their charm quickly when you are constantly looking for the nearest power outlet to charge up. For keeping your Dell Latitude d400 Series Battery going for as long as possible, here are 5 easy ways to do so.

1.Turn the brightness level as low as possible. Laptops always come with the ability to select the brightness level, some even could modify CPU cooling performance, switch down to lowest level will enable you squeeze out two times longer Dell Studio 1536 laptop battery life than the situation working in the highest level.

2.Unplug external devices. Normally device, your mouse, and the most power consume device -- Mobile hard disk, they drain down your Latitude d400 Series battery pack for there get the power supply from the USB port in your laptop. Remove when you aren't using them, is goes without saying that this will save a lot of power.

3.Hibernate instead of suspend. Suspend mode make your save some power and instantly resume your laptop when you come back, but compare with the Hibernate mode, suspend laptop also running in lower power consumed situation, electricity exhaust is zero in hibernate mode for all your computer's state were saved before it shutdown. For the convenient reason, you'd better use the hibernate function when leave over 20 minutes.

4.Keep your Dell Latitude d400 Series notebook battery clean. Keep the laptop battery clean especially the matel contacts with some a cloth moistened with rubbing alcohol, this keeps the power transfer from your Dell Latitude d400 Series computer battery more efficient.