NIKKO 7.2V 1600MAH mega power pack and charger (1310) in category Gadgets - Hobbies/RC Models at Easy Technology.
Amazon.com : Koah Combo Pack Rechargeable Battery Pack 1600mAh 7.2V Li-Ion with Car Charging Adapter and European Plug Compatible with LP-E10, EOS 1100D, EOS Rebel T3, EOS Rebel T5, and EOS Rebel
Nikon 7.4V 1600mAh Digital Camera Replacement Battery - CAM10174 at Batteries Plus
Nikon EN-EL14a Rechargeable Lithium-Ion Battery (7.2V, 1230mAh) - The Camera Exchange
NATNO New EN-EL25 Battery Compatible with Nikon 4241 Z50 Z FC Mirrorless Camera Rechargeable li-ion Battery EN-EL25 ENEL25 EN-EL25a Replacement 8.7V 1350mAh - Walmart.com