ProLine EN-EL4/EN-EL4A 3350mAh Video Battery | Jupio
Batteries N Accessories BNA-WB-ENEL4 Digital Camera Battery - li-ion, 11.1V, 1800 mAh, Ultra High Capacity Battery - Replacement for Nikon EN-EL4 Battery - Walmart.com
Vinland's EN-EL4 Battery Page
Kastar 4-Pack EN-EL4a Battery 11.1V 3200mAh Replacement for Nikon EN-EL4, EN-EL4a, EN-EL4e Battery, MH-21, MH-22 Charger, Nikon Camera D2, Nikon Camera D2H, Nikon Camera D2Hs, Nikon Camera D2X - Walmart.com
Order Now - Battery for Nikon EN-EL4 - DRNEL4
Amazon.com: Kastar 3-Pack EN-EL4a Battery 11.1V 3200mAh Replacement for Nikon EN-EL4, EN-EL4a, EN-EL4e Battery, MH-21, MH-22 Charger, Nikon Camera D2, Nikon Camera D2H, Nikon Camera D2Hs, Nikon Camera D2X : Electronics