Product Description

Required for use with either MB-D10 or MB-40 and EN-EL4/EN-EL4a battery

Product Details

• Brand: Nikon
• Model: BL-3
• Dimensions: .20 pounds

Features

• Battery chamber cover for the Nikon EN-EL4 rechargeable battery
• Required when battery is teamed with MB-40 or MB-D10 battery pack
• Cover replaces standard tray that comes supplied with battery pack
• Clips onto the battery; includes neoprene storage pouch

Amazon.com
The Nikon BL-3 battery chamber cover is required when the EN-EL4 rechargeable battery is paired with the MB-40 battery pack or MB-D10 multi-power battery pack. The cover--which clips onto the battery--replaces the standard tray that comes supplied with the battery pack. The BL-3 comes with a neoprene storage pouch.

Customer Reviews

Must Have adapter for the MB-D10
Works great in combination with the MB-D10 to use the same batteries as the D2 / D3 series cameras. This is the only way to get the maximum per second shutter rate out of your D700 or D300.

Con: Should have been included in the MB-D10 box

A must have
Deciding to go with the EN-EL4 battery for in the MB-D10 battery case on my Nikon D300 this little handler plus the charger made the choice pretty tough on my budget. I am happy with the quality of the chamber cover (really it's the electrical connection between the battery and the camera).

Connecting the battery to the cover isn't intuitive but if you keep the instructions it's not too bad. Practise a few times to teach your brain the process because in low light it can be a challenge. It's just a slide switch but it feels like you are putting it on the wrong end of the battery.

As with the other chamber covers for the MB-D10 it looks nice and works well.