Excerpt: I use this battery with my D5 and D4s Nikon Cameras.
It does have a little more capacity than
the EN-EL18 battery.
What can you say about a battery. It either works or id doesn't.
This one appears to work.
It's just to bad it's so over priced by Nikon.
Excerpt: I decided a long time ago NOT to put off-brand batteries in $2-4,000 camera bodies. This is like putting discount store oil in your BMW. So I was pleased to get a genuine Nikon battery at a very good price.
Excerpt: Even though the EN-EL18 is not the newest battery for the Nikon D4S, it works just fine. While I wouldn't use it as my first battery, it provides peace of mind as a second or third backup. That works for me, considering the lower price.
Excerpt: This was bought as a second battery for my D4. I'm replacing an off-brand battery I bought earlier. The Nikon OEM costs twice as much, but the difference in quality is apparent. My Nikon batteries hold a charge longer, significantly longer, and on an all-day shoot that difference matters.