Amazon.com : BM Premium 2-Pack of EN-EL5 Batteries for Nikon Coolpix P80, P90, P100, P500, P510, P520, P530 Digital Camera : Electronics
Amazon.com : Synergy Digital Camera Battery, Works with Nikon Coolpix P500 Digital Camera, (li-ion, 3.7V, 1100 mAh) Ultra Hi-Capacity, Compatible with Nikon EN-EL5 Battery : Electronics
Gomadic Portable External Battery Charging Kit suitable for the Nikon Coolpix P500 Includes Wall; Car and USB Charge Options