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
NEEWER Vertical Battery Grip for NIKON Work with EN-EL14 - NEEWER
New and used Nikon D3100 Cameras for sale | Facebook Marketplace | Facebook
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
2 Pack Nikon EN-EL14/EN-EL14A Li-Ion Battery Replacement by Commander for Nikon D3100, D3200, D3300, D5100, D5200 and D5300 Digital Cameras - Walmart.com