Pixel Flashgun Power Pack TD-382 for Nikon SB-900,SB900 Flash Battery Pack Package Including: 1 * TD-382 Power Pack 1 * Protection Bag 1 * Camera Connecting Screw 1 * Instruction Manual Using two groups of symmetrical charge system Fastest recycle time (sec): 1.24 1/1 flash charging times: 577 Measurement (L X W X H): 170 X 72.5 X 25 MM