Lenmar Replacement Battery for Nikon Coolpix 2500 3500 Replaces OEM Nikon 9904 BP-NKL2 DDEN-EL2 EN-EL2 Fits: Nikon Coolpix 2500, 3500, SQ Replaces: Nikon 9904, BP-NKL2, DDEN-EL2, EN-EL2 3.7V / 1100mAh Lithium Ion 2 Year Warranty Replaces Nikon EN-EL2, Nikon BP-NKL2, Nikon DDEN-EL2 Fits Nikon Coolpix 2500, Coolpix 3500, Coolpix SQ (See Product Description for Additional Fits) 3.7 Volts, 1100mAh Capacity Lithium-Ion 3 Year Warranty