Battery Since I got my O about 5 weeks ago I've been looking for a longer lasting battery. Only in the last 2 weeks have I seen any non-OEM batteries but alas they are even less then the original 1500 mah. They are temptingly cheap, about $16. incl shipping but they are smaller and of questionable origin. Anybody have a clue if it is possible to get an extended battery beyond 1500, even if it requires a bigger door?