En El14a Battery Nikon D5300 | En El14a Battery Nikon D3400 | Nikon D3100 Accessories - Digital Batteries - Aliexpress
Kastar 1-Pack EN-EL14 Battery Replacement for Nikon Camera Grip DF BG-2P 905-19045-00000-01, D3100/D3200/D3300, BG-2F 905-19021-00000-01, D3400, BG-2TIR 905-19035-00000-01 - Walmart.com
Amazon.com : Nikon MH-24 Quick Charger EN-EL14 Li-ion Battery Compatible D3100 DSLR, D5100 DSLR, and P7000 Digital Cameras : 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