Do read this before cleaning the fujitsu lifebook a556 notebook.

Today we'd like to share this article from http://www.fujitsupc.com. This article is about to tell you what you should keep in mind when decided to clean your Fujitsu laptop.
Do not clean any interior parts yourself; leave this job to a service technician.
Only use cleaning products designed for computers. Normal household
cleaners and polishes can damage the markings on the keyboard and the
device, the paintwork or the notebook itself.
Ensure that no liquid enters the notebook.
The LCD screen very sensitive to scratches. Only clean the display
surface with a very soft, slightly damp cloth.
► Switch the notebook off.
Cleaning Instruction Notebook Keyboard Touchpad LCD screen Crystal Views screen
► To prevent the device being switched on unintentionally, remove the AC plug of the AC adapter from the power outlet and remove the battery.
The casing surfaces may be cleaned with a dry cloth. If particularly dirty, use a cloth which has been moistened by submerging it and then having it carefully wrung out.
To clean the keyboard and the touchpad if present, you can use disinfectant wipes.
Ensure that no moisture reaches the inside of the device!

ca556 10.8V 4170mAh laptop batteries
Voltage: 10.8V
Capacity: 4170mAh (45Wh)
Battery cells: 6-cell
Chemical: Li-ion
Battery Color: black
Condition: new original battery

Warranty: 9 months