[header] How to save your laptop battery [title] Unplug devices from the laptop. [step] Any device plugged into the laptop, such as a usb device or a second monitor through vga, will require cpu activity to access these devices. Certain usb devices will require a high amount of power which will drain the battery faster, such as a fan which features moving hardware. 
Unplug any devices that you do not need to use. [title] Shutdown or activate sleep mode on your laptop when not in use.