Jupio Battery Grip for Nikon D3100, D3200, D3300, and JBG-N003
Amazon.com : BIG MIKE'S ELECTRONICS Battery Grip Kit for Nikon D3100 D3200 D3300 D5300 Digital SLR Camera Includes Qty 2 Replacement EN-EL14 Batteries + Vertical Battery Grip + More!! : Electronics
Amazon.com: UltraPro Nikon D3100 Digital Camera Battery Charger (110/220v with Car & EU adapters) - UltraPro Replacement Charger for Nikon MH-24 Charger : Electronics
BATTERY GRIP D3100
MeiKe MK-D3100 Battery Grip for Nikon D3100 D3200 | MeiKe Store
Hi Capacity Lithium Ion Battery Pack for Nikon D3100 D3200 D3300 | eBay
EACHSHOT D3100 Battery Grip for Nikon D3100 D3200 D3300 AS BG-2F SG-2F | Eachshot.com