Neewer Professional Vertical Battery Grip Replacement for Nikon D3100/D3200/ D3300/D5300 SLR Digital Camera, Works with 1 or 2 Pieces EN-EL14 Batteries
BP 2 Pack EN-EL14 EN-EL14A Replacement Batteries & Charger for Nikon C – Ruthy's Outlet
The last D3100, D3200, D5100, D5200 and P7700 firmware update killed third party battery compatibility - Nikon Rumors
Amazon.com : STK EN-EL14 EN-EL14a Battery Pack for Nikon D3200 D3400 D3500 D3300 D3100 D5100 D5200 D5500 D5600 D5300 EL14 EL14A ENEL14 ENEL14A EN EL 14 14a D 3200 3300 3400 3500 3100 5100 5200 5500 5600 Grip : Electronics