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Review title: Useless for anything but an added hand grip.
Product review: I bought the grip for the (supposedly) doubled battery life for time lapse shots and such. This grip does not double your battery life. It does allow you to carry an extra battery as it does an extra memory card onboard the camera but your camera will still shut off when whichever battery you have currently selected dies. In order to use the second battery you must restart the camera and it will automatically select the fully charged battery (most of the time).The only advantage battery wise from this grip is that you don't have to take an extra few seconds to swap the battery out. If you are expecting doubled battery time it is not happening with this grip.The only true advantage this battery grip has is the added hand grip area itself and this is certainly a high price to pay for added grip alone.
