Three years ago I bought a Nikon D80 and I'm very satisfied with the supplied battery. He has no signs of aging and work without difficulty. In order to be able to make the holiday even more photos, I ordered this second battery. I think the quality is as good as three years ago. However, the performance have changed what I did not like much. The old battery has 1500 mAh, while the new 1410 mAh only has. It acts with two batteries to the EN-EL3e.