Digipower Re-Fuel Rechargeable Lithium-Ion Replacement Battery for Nikon EN- EL23 RF-NKL23 - Best Buy
Amazon.com: Synergy Digital Camera Battery, Compatible with Nikon Coolpix P600 Digital Camera, (Li-ion, 3.8V, 1400mAh) Ultra High Capacity, Replacement for Nikon EN-EL23 Battery : Electronics
Amazon.com: STK EN-EL23 Battery for Nikon Coolpix EN EL23 P900 B700 P600 Cameras EN EL 23 ENEL Charger and P610 P610s S810c P900s ENEL23 MH67p MH-67p MH 67p 67 p Cool Pix
New Original OEM Nikon EN-EL23 Battery 3.8V for Coolpix P610s P900 P900s S810c | eBay