Some of us change custom setting f4 on the D750 to "AF-ON" to use the AE-L/AF-L button to activate auto-focus since the D750 has no AF-on button. I contacted the seller who replied straight away that they would send another, what they sent was a new battery holder but in the mean time I had bought a spare Duracell which works perfectly so I've not pursued it any further. Even with the grip disconnected and turned off, the remotes work ( green led comes on when I press the shutter release. Whilst Meike (AFAIK) makes no claims for the weather sealing of the grip (unlike the Nikon unit), upon checking my grip for my D810, I can see there are 2 places where Nikon seals the grip.

Lithium-Ion batteries offer a high energy density and low self-discharge, and are nowadays found in many portable electronic devices. However, put the camera into bulb mode, and this little remote can handle 1) a delay before the first picture is - taken fully selectable 2) a timed release that goes to 99 hours, 99 minutes and 99 seconds and 3) a invalometer function which can trip the shutter up to 999 times at a user set interval. Additionally, always ensure that the camera is turned off before inserting or removing the battery to prevent any damage to the camera or battery.New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging . If you get "another brand" it may be better to use it in your camera and keep the Nikon as the back up. All that was to say that saying Duracell, or Nikon, or whatever on the label doesn't make it a good battery. I had a separate grip on one of my previous cameras and seem to remember that you could select which battery you wanted used first.

If I set the camera to bulb, and the remote to bulb, the red led comes on, but still doesn't fire the shutter. I’m not sure exactly what I was expecting, but the unit is very solid, with little to no flexing of the engineering plastic (no magnesium chassis here), good tight seems and no moulding flashing and no creaks when assembled. Never put yourself in the heartbreaking situation of running out of power in the middle of that once-in-a-lifetime photo opportunity again. I kind of fixed it by always putting the battery in the camera but the build quality was still very poor compared to the Nikon ones and very flexible on the camera. Insert the camera battery into the compartment, making sure it is properly aligned with the contacts.Generic alternatives (see below) that are compatible with the Nikon D750 can be obtained at substantially lower cost. We reserve the right to reduce the amount of refund to you if the item or the packaging has been handled excessively to assess the goods.

Remember, Nikon does not make its own batteries so even 'Nikon' batteries are, in a sense, third party too!Thanks for the review, I have been looking into getting one for my D750, and its been a tossup between the Meike, and the Pixel version. If you can't find what you need, let us help locate the right product for you, we have a vast database of up to date information at our fingertips.