Compatible with battery models: Nikon EN-EL20, Nikon EN-EL20a Replaces: Nikon ENEL20a High Capacity 1500mAh, 7.4V Fully Decoded Compatible with charger models: Nikon MH-27 MH-27a Nikon MH-29 MH-29a 3. Compatible with camera models: Nikon Coolpix P950 Nikon Coolpix P1000 Nikon Coolpix A Nikon 1 AW1 Nikon 1 J1 Nikon 1 J2 Nikon 1 J3 Nikon 1 S1 Nikon 1 V3 Nikon DL24-500 The Vivitar ENEL 20a Camera Battery Lithium-Ion battery is a high power battery and has no memory effect, therefore can fully charge it from any level. It can also be used with your existing camera charger, making it a perfect replacement for your digital or video camera.