The left side of the system is fairly bare, due to the placement of the M:855’s battery: a huge 12 cell 14.8V 6.6AH (our sample was 2.4AH) that weighs in at about 0.5 pounds.
Many Centrino laptops have lower capacity ~4AH 7.4V batteries in stock form. I couldn't find the spec for Voodoo's own Centrino laptop batteries.
edit: Voodoo's m:460 is 53 Watt-hours 8 cell. I couldn't find the voltage spec, so I'm not sure what that translates to in AH.