Hello everyone. After reading a lot from this forum and others, i still don't have the informations i need to realize my project. So here it is: i would like to build a laptop with the udoo. I planned to buy the advanced plus version (for the ram and the emmc). And for this i'd like to reuse parts from an old laptop, a 15" Vaio, like the screen, the battery, the hdd and the shellcase. And here's the infos i gathered through time: _the screen needs a driver board to connect to the udoo by hdmi _the udoo needs a 12v 3a power supply _i don't need a buck between the power supply, the udoo and the screen as they need the same voltage _to power the "laptop" during minimum 4h with a 12v 3a, the battery must be a 12ah one My major problem is the battery. Can I reuse the cells from the old Vaio? In the contrary, how can i build one? Secondly, how can i prevent the extinction of the board before the battery dies?