With pre-release estimates placing the 3DS's battery life at somewhere between three to five hours per charge with 3D engaged, the device's actual performance is obviously a huge concern. Unfortunately, those estimates are actually pretty accurate, and depending on how you use your 3DS, the built-in battery could last as few as two and a half hours or up to roughly four and a half hours per charge. Factors like 3D usage, Wi-Fi connectivity, screen brightness, and the caliber of games you're using impact the battery's lifespan, so individual experiences will vary.
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