Neewer Replacement Battery Grip MB-D10 for Nikon D300S D700 D300 SLR Digital Camera Compatible with EN-EL3e Hold 8 AA batteries or one EN-EL3e Vertical shutter with half-press function. More comfortable vertical shooting. Doubling the battery capacity of your camera, effectively extend your shooting time. Tripod screw mount. Same functions as the original battery grip Nikon BP-D10. High quality product with big discount from the original one.