Power

Architecture :

Power source will come from lithium ion cells, for the first prototype just one 2500 ma cell will be used.
Current from the battery will be converted by 2 dc-dc convertors into 12V and 5V.

Devices to power :

Screen/lvds controller : 12V 2.5 A
Motherboard : 5V 2 A / standard usb port
Usb hub : 5v 2A

Battery parts :

Part name	link	seller	price
lithium ion cells x2	http://www.sureelectronics.net/goods.php?id=425	sure electronics	11.52$
dc-dc convertor	http://www.dimensionengineering.com/DE-SWADJ.htm	dimension engineering	15$ x 2
lithium ion cell charging pcb	http://www.sureelectronics.net/goods.php?id=44	sure electronics	6.77$
cables		local electronic shop	10$
Total			55.50$