The Vello BC-N1 Battery Chamber Cover is a replacement battery cover designed to work specifically with the Vello BG-N1 and BG-N8 Battery Grips. This cover clips onto the battery, keeping it securely in place. If the batteries are removed from the grip for charging, the cover keeps the grip clean and free of debris.
In addition to being compatible with the Vello battery grip, the BC-N1 can also be used with the Nikon MB-40 and MB-D10 multi-power battery packs for the ENG-EL4 and EN-EL4a batteries. When using the BC-N1 with the optional EN-EL4a battery, faster continuous shooting speeds of up to 8fps are possible.
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Pros
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Comments about Vello BC-N1 Battery Chamber Cover:
I bought 2 of these to pair with a Zeikos ZE-NBG300 grip and the Pearstone EN-EL4a battery pack. Both covers and battery would not fit into the Zeikos grip as the cover would not latch, thus causing the battery to not connect and slip out. I had another generic brand grip for my D700 and it fit perfectly. So, the cover works great, just not with all grips. Just FYI if you're considering pairing this cover with that particular grip.
Pros
Cons
Best Uses
Comments about Vello BC-N1 Battery Chamber Cover:
The BC-N1 is actually a better fit than the Nikon BL 3 battery chamber holder on the MB-D10 battery holder since it completely secures the EN-EL4a battery in the battery chamber on my D700. The Nikon BL-3 exposes about 1/8 inch portion of the battery outside the battery chamber. So if you brush against this battery chamber you can by accident release the battery chamber and battery. As a result of the exposed portion of the battery I have already lost two BL-3s battery covers and one EN-EL4a battery.
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