The Hahnel HL EL20 is equivalent to the Nikon EN EL20 battery.
Price: £29.99 from Wex Photographic
A replacement for the Nikon EN EL10, suitable for Nikon Coolpix S200 & S500 Digital Cameras. Capacity 660 mAh, 3.7 V, lithium ion.
The Hahnel HL EL12 is a spare or replacement battery 3.7 V, 900 mAh for Nikon A1000, A900, B600 and W300 cameras.
The Hahnel HL EL14 Battery Nikon EN EL14EL14a is a spare or replacement battery, equivalent to the Nikon EN EL14, for the Nikon P7000, P7100, P7700, D3100, D3200, D3500, D5100, D5300, D5600 and Df cameras.