For nearly a week, I've been playing with the 3DS. And during that time, I've asked one question over and over again: How's the battery?
It's pretty much what Nintendo said it is. According to the Kyoto-based game company, the 3DS's battery can last anywhere between 3 to 5 hours and up to 8 hours with no 3D. The 3DS's battery life is dependent on the settings. So it is possible to lower the brightness and use an lower energy setting to conserve energy. Those numbers are about right, and in the real world, they sometimes end up feeling short.