ProMaster EN-EL3E نيكون ليثيوم أيون 7.4V 1600mAh

This battery fits perfectly in my D90 and lasts through a whole day of shooting without needing a swap. The 7.4V power delivery feels solid, no sudden drops like my old generic pack.

The 1600mAh capacity has held up through a full day of shooting without a swap, which is more than I can say for my old battery. It's a solid spare that charges reliably and fits the camera just like the original.

Picked one of these up as a spare and it holds a charge just as long as the original Nikon battery I’ve been using for years. The 1600mAh capacity is exactly what I needed for a full day of shooting without swapping out.