http://www.nikonchat.com/nikon-d80-battery-grip/
Can a battery fit in a Nikon D80 Nikon D90?
I get a D90, but D80 have some extra batteries. Do I have to buy a new one D80 batteries or fit in a D90? * Note *- not the extended battery grip, just talking about the standard battery of here.
You're in luck! Both take the nikon en-el3e Lithium-Ion. You can read about the side of the camera next to here — http://www.dpreview.com/reviews/compare_post.asp?method=sidebyside&cameras=nikon_d80 2Cnikon_d90% & camsel = nikon_d80 & show = all
Nikon D90 with Battery Grip Mounted
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