vello bg-n7 battery grip for nikon d800 & d800e

TheBG-N7 Battery Grip fromVello is designed specifically for the Nikon D800, D800E and D810 DSLR cameras and accepts one Nikon EN-EL15 battery. Two battery trays, one for the EN-EL15 and one for the 8 AAs, are included.The design of a battery grip offers a comfortable and secure way in which to hold your DSLR, especially in the vertical position. A tripod socket is included as is a holder for the camera's contact cover so as not to lose it when it has been removed to install the battery grip.Holds one EN-EL15 battery (not included), doubling the battery life and shooting time for the Nikon D800, D800E or D810 DSLR.Provides comfortable and secure handling when shooting in the vertical position, including a secondary shutter release button and secondary AF-ON button, multi selector, main command dial and sub-command dial.Features anti-slip rubber gripping and a securely locking battery chamber door.Provides a space to hold the camera's contact cover to prevent its loss.Power Source: 1 EN-EL15 Lithium-Ion battery or 8 LR6 Alkaline, HR6 Ni-MH or FR6 Lithium AA batteriesOperating Temperature: 32-104 F (0-40 C)Dimensions: Approximately 5.9 x 2.2 x 3.1" (150.8 x 54.8 x 77.4 mm)Weight: Approximately 9.6 oz (272.2g), with EN-EL15 battery holder but excluding batteriesNote: To fix battery connectivity issue, please follow the below mentioned steps.Step 1: Please use freshly charged, good quality EN-EL15 type batteries, that where installed properly per the Manual.(Use of AA type batteries requires additional settings in order for the battery status to reflect properly.)Step 2: Please make sure all manual's instructions on installing, setting, and using the product are properly followed.