i found this laptop battery that that i think would work really well inside a gamecube portable. however, what i'm unsure about is wether i would be able to take the cells inside the battery and use them to power the gamecube. and would i be able to use the laptop charger for the battery
battery: http://www.amazon.com/Replacement-dv7-1 ... 8v+4700mAh
battery: http://www.amazon.com/Replacement-dv7-1 ... 8v+4700mAh