Does anyone know what the maximum energy a DS phat battery can be? For example, I found the following that claims to be 1800 mAh: http://www.amazon.com/Nintendo-DS-Replacem...0426&sr=8-8 while the one currently in my DS is only 850. I'm fairly stupid and am wondering if (A) a 1800 mAh battery would be plausible for the DS phat and (B) if you guys think the listed item is legitimate as the details say twice that it's 1800 while the generic picture says it's 850. I just though it'd be cool to double my battery life for $7 if it would work. Anyway, thanks in advance for the help.