http://www.nikonchat.com/coolpix-l16/

What are the best AA batteries for Nikon Coolpix L16?
Are alkaline Duracell or Energizer lithium better?
None them. Your camera is optimized for rechargeable NiMH AA There are many brands, so if you buy a set of four and a battery charger with power 2500 mAh or more, you can enjoy the best performance available for your camera. Sanyo, Olympus, Eveready and others make these batteries
Nikon Coolpix L16