Amazon.com : Nikon MB-D14 Multi Battery Power Pack for Nikon D610 and D600 Digital SLR : Digital Camera Battery Grips : Electronics
Amazon.com : Battery Grip Kit for Nikon D600 D610 Digital SLR Camera Includes Vertical Battery Grip + Qty 2 Replacement EN-EL15 Batteries + Rapid AC/DC Charger : Digital Camera Accessory Kits : Electronics
Amazon.com : Rechargeable Li-ion Battery for Nikon EN-EL15 and Nikon D600, D610, D800, D800E, D7000, D7100 Digital SLR Camera and Nikon 1 V1 Digital Camera : Electronics
Amazon.com : Nikon MB-D14 Multi Battery Power Pack for Nikon D610 and D600 Digital SLR : Digital Camera Battery Grips : Electronics