Name: Nikon BL-5 Battery Chamber Cover for MB-D12 Battery Pack - Compatible with D500, D800, D810 and D850 DSLR Cameras
Brand: Nikon
SKU: INKBL5
Price: 35.95 USD
Availability: BackOrder
Rating: 4.9 (26 reviews)

Nikon BL-5 Battery Chamber Cover for MB-D12 Battery Pack - Compatible with D500, D800, D810 and D850 DSLR Cameras

Nikon BL-5

Nikon

Nikon BL-5 Battery Chamber Cover for D500, D800, D810, D850

Although this item is temporarily on Backorder, you can order it now and it will ship as soon as it arrives. Your card will only be charged once item is shipped.

Temporarily On Backorder

Although this item is temporarily on Backorder, you can order it now and it will ship as soon as it arrives. Your card will only be charged once item is shipped. Estimated to Ship: 09/2025.

Adorama

Photography

Camera Accessories

Battery Grips

Nikon Battery Grips

Nikon BL-5 

Get the Nikon BL-5 Battery Chamber Cover for MB-D12. Compatible with D500, D800, D810 & D850 DSLRs. Shop now for enhanced battery performance!

When it comes to safeguarding the power source of your Nikon DSLR, the BL-5 Battery Chamber Cover is an essential accessory for any serious photographer. Designed specifically for use with the MB-D12 Battery Pack and the high-capacity EN-EL18 rechargeable lithium-ion battery, this durable and high-quality cover ensures that your Nikon D500, D800, D810, or D850 DSLR camera's battery chamber is fully protected.Crafted from sturdy materials, the BL-5 Battery Chamber Cover offers a reliable shield against the elements, making it an ideal choice for photographers who frequently shoot in diverse conditions. Its compatibility with multiple Nikon DSLR models makes it a versatile addition to your camera gear, ensuring a secure fit and uninterrupted power supply to your camera.Whether you're capturing landscapes in the great outdoors or shooting events that require extended battery life, this compatible and protective cover is a must-have for maintaining the integrity of your camera's battery compartment. The BL-5 Battery Chamber Cover is a testament to Nikon's commitment to high-quality, reliable camera accessories that enhance your photography experience without compromising on protection.Please note that the battery is not included with the purchase of this battery chamber cover. With the BL-5 Battery Chamber Cover, you can trust that your Nikon DSLR's power source is well-guarded, allowing you to focus on capturing stunning images with confidence.

Nikon BL-5 chamber cover

Perfect addition for my D500.

Got this along with the battery grip for my D500. This thing now shoots for days?

Proper OEM product. Everything is perfect.  If you have a need for this, don?t hesitate.

Nikon perfection.

Great, I just have to purchase the battery next time.

Nikon BL-5 Battery Chamber Cover for MB-D12 Battery

This battery does not work at all in my D850. It does work just fine in my D800 though. I don't know why this is the case. Maybe the D850 is programmed to detect non-original batteries somehow.

Doesn't work in my D850 but works fine in my D800

A good product that along with the MB D12 Battery pack keeps you shooting not changing batteries. The way to go.

A great product

Package received on time and works as expected.

Excellent Customer Service

The Nikon BL-5 allows me to use the batteries I use with my D4 bodies in the battery grips for my D800e (MB-D12) and D850 (MB-D18) bodies. This makes traveling easier since one battery type (and charger) can work for all, and it increases the frames per second if you are machine-gunning. Unfortunately, Nikon doesn’t see fit to include the BL-5 with the MB-D18 (I don’t remember if it comes with the MB-D12), so it has to be an additional purchase. Otherwise, it’s great.

What you need to goose FPS on your Dxxx bodies.

its brilliant.  holds a battery and attaches to the camera at the same time.

Brilliant

This battery cover allows you to use the Nikon D5/D4/D4s batteries with the vertical grips for the D500 and D850. This way you only have to carry one type of battery and charger with you. Plus these batteries have much more storage and last longer per charge.

Useful battery cover

I love this battery pack! Being able to go from 7fps to 9fps with my D850 is huge! The battery lasts forever, attaches easily, and adds significant functionality! My only gripe would have to be with the price.

Fantastic addition to the D850

Best battery I have

This is super nifty.  It allows my D500 battery grip to use the bigger batteries that the D5s run off.  The batteries are not cheap, but they last for an entire day of shooting.  I've actually never run one out of charge even shooting 5,000 shots.  I'd usually go through 2 or even 3 of the regular size batteries.

Great modification

Great addition to the camera bag if you do a lot of shooting...

Great addition...

I bought a new Nikon D850 camera. The product is very ideal, so that the speed of photography can reach 9 pieces per second.

Satisfactory products!

It is just what I needed and it functions perfectly! I had a hard finding this at other locations, including Nikon where it was out of stock with no anticipated availability dates.
Adorama had it available and promptly shipped it.
Thanks Adorama!!!!

It is just what I needed and it functions perfectly!

works fine. its a battery cover.  it covers the batery

as advertised

Bought the Nikon D850 and saw that with the MB-D12 Battery Pack I could use the batteries for my D5 but didn't read the fine print. You need to buy the BL-5 in order to use the D5 battery. Why they did not include it with the MB-D12 beats me for it was only a $ item.

Should have been included

As long as it fits properly, there's not much else to say other than that it should be included along with the grip.  If Nikon wants to charge a little more for the grip, that's fine, but why should anyone have to order the chamber cover separately and have to wait for it to come before being able to use the larger battery.  With the current D-850 craze, there is an extended waiting list for the camera body, the grip, and now the chamber cover.  If the chamber cover came with the grip, the grip would be a complete package and one would be set to go as soon as they receive the grip.  The grip without the chamber cover can't make use of the bigger battery, which provides longer shooting time and increases the fps from 7 to 9.  I can't speak for anyone else, but it's my estimation, from the difficulty in finding the chamber cover in-stock anywhere, that most people who order the grip intend to use the larger battery and, so, need the chamber cover.  Oh well, one more misstep by a quality manufacturer.

Fits and works.

Definitely a plus to get the set for the camera. OEM the best.

Makes a difference. Now I completed the battery grip.

Great add on!

With the BL-5,both my camera bodies now take the 18 battery.
This allows me to take only one charger and one battery type when traveling. The BL-5 is compatible with the D500.

Multi camera compatability

If you have a D4 or D5 this is a great accessory for running the bigger battery EL-EN 18 in the grip for d800-d500. Becomes cost prohibited if you don't already have batteries and charger.

Great if you have EL-EN 18 batteries

Slides right into the grip and I can use the D4 and d4S batteries in my D810 now...

Works as expected

Exactly what I needed to utilize the MB-D12 to the fullest.

Excellent product

Battery door works perfect with the mb-17 battery grip. But this door was supposed to be included with the grip

Battery door works perfect with the mb-17 battery grip

Form, fit, and function are all top notch.  A perfect way to double your shutter count between charges.

Nikon BL-5 Battery Chamber Cover for MB-D12 Battery Pack - Compatible with D500, D800, D810 and D850 DSLR Cameras

Key Features