By Mike from Colorado on 9/9/2008

I also was stunned that this did not come with the MB-D10. Like all Nikon products this feels well built. Also the price, well it is Nikon. I also love the Neoprene Pouch that it comes in. If you own a D300/D700 and want more life out of your camera, both frames per sec and battery life, you need this piece to finish off the upgrade.

By Bilbo Baggins from Washington, DC on 8/6/2008

I didn't notice the tiny button on the top that needed to pushed up when inserting the Battery into the BL-3. Once I got the battery attached, the unit worked perfectly.

By Photobroder from Shoreview, MN on 7/10/2008

It was unclear that this part was necessary to make the D300 fire at 8 fps. Once I got it I had a moments trouble understanding how to connect the battery. No instructions provided.

By atsu from Lexington, KY on 6/26/2008

This is not a required item for obtaining 8 frames/sec speed with D300. Due to the fact that not many retailers stock this item for a while, I used 8 AA size rechargeable to obtain 8 frames/sec speed on D300. Although I used mostly-trouble free eneloops, maintaing 8 AA batteries are still pain things to do, especially when you are traveling and staying on motel which offers not many AC outlet. So I purchased BL-3, EN-EL4a and MH-21 charger. EN-EL4a is not only lighter than 8 AA batteries, but also has an incredible stamina - can easily take more than 5000 shutter clicks with one charge. If you are sports/aviation shooter and using D300 I highly recommend this item. Personally think [$] for this piece is way too expensive, and I think Nikon should include this parts in MB-D10 package.