I use this battery grip with my D3000 and can't use three batteries because the grip fits in the existing battery slot.
1820512
No, you use two! A 100% improvement over your standard setup, and it should easily give you 1500+ shots before having to change your battery. I love mine!
1820513
That's right. You use the existing battery slot to port the grip - leaving the two battery slots in the grip for camera use.
1820514
Correct. This grip with its 2 batteries replaces the small one that goes inside the camera. Most all battery grip packs will be this way. Hope this helps.
2125286
That's how the Nikon grip is too (MB-d11). They only have a spot for one extra battery in the grip. The D80/90 grips held both batteries, but even Nikon went away from that. Not sure why, but makes it so you have to take the whole battery grip off to extract the first battery from the default location to charge it. It's easier to just keep a second battery in the bag if you don't really need the extra grip size and functionality. Plus it looks cool!
938533
The short answer is no. This grip allows only one Nikon rechargeable battery, but can also accept AA batteries with the included cartridge. However, you can also use one Nikon battery in the camera body as well as the battery grip, effectively giving you two batteries. It gets a little hard to change the one in the camera body, you must first remove the grip. Nikons error in my opinion.
1644613
After about 6 months, I started getting the error message. I purchased a NEEWER Pro Battery Grip for Nikon D5100 EN-EL14 DSLR Camera from Amazon. Now, all I have to do is put the Nikon battery in first, and I don't get the error message. I have yet to completely run down both batteries in one session. Even with over 650 RAW images shot at an air show, there was plenty of battery left. As far as fitting the charger, it has to or it wouldn't fit the camera.
1313375
No. I've used battery grips with 300D, 10D, 40D and now 60D Canons. All were unique and not interchangeable with each other.
710129
The D50 is a much larger camera than the D3000. This battery Pack Grip would not fit.
1311714
I just bought one more battery to use the grip. The grip also comes with an extra tray to use AA batteries.
1257034
I first ran into some issues where when I had a Nikon battery and a third-party battery at the same time, it the camera wouldn't recognize that a battery was in place. I believe I solved this by putting the Nikon battery in the grip and the third-party battery in the camera. There's also nothing that says you NEED to have a battery in the grip to use functions such as the vertical shutter button, so you could always just use a single battery inside the camera body and leave the grip empty. You *should* be able to finagle the order so that you don't have any issues, though. The grip itself is fantastic in build quality, and I highly recommend it. I first ran into some issues where when I had a Nikon battery and a third-party battery at the same time, it the camera wouldn't recognize that a battery was in place. I believe I solved this by putting the Nikon battery in the grip and the third-party battery in the camera. There's also nothing that says you NEED to have a battery in the grip to use functions such as the vertical shutter button, so you could always just use a single battery inside the camera body and leave the grip empty. You *should* be able to finagle the order so that you don't have any issues, though. The grip itself... » Read More I first ran into some issues where when I had a Nikon battery and a third-party battery at the same time, it the camera wouldn't recognize that a battery was in place. I believe I solved this by putting the Nikon battery in the grip and the third-party battery in the camera. There's also nothing that says you NEED to have a battery in the grip to use functions such as the vertical shutter button, so you could always just use a single battery inside the camera body and leave the grip empty. You *should* be able to finagle the order so that you don't have any issues, though. The grip itself is fantastic in build quality, and I highly recommend it. « Show Less
360757
It's a grip that is also a battery expansion pack that let's you use two batteries at once with your DSLR.
104395
I had the battery grip on my d90 and I had to take it off to use this case. I like the case so much that I have decided to take off the grip and use this case and just carry extra batteries.
2256517
i use a battery grip for my camera, other than that, they are awesome batteries. ive been using them for a while and no problems. they last a long time
2206055
I'm not sure, but I haven't had any problems with this battery. I do have a battery grip that I use with both my D5100 and my D90, so that may be it, but don't know if that is the case.
1073476
Yes, this is Nikon's original grip. you load only one battery as a spare battery,. i use this for my Nikon D7100 and it work so handy. I will recommend this to everybody..
643772
Yes, you have to use 2 standard batteries that came with the camera. Or you can use 8 AA batteries with the adapter that comes with the grip.
1473885
I own a D3000 and the batteries work just fine. They don't hold as much as the original one but they don't cost as much either and I always carry at least 2 with me.
585998
In can use 1 or 2 batterys. There is no switches or anything. If you put in 2 batterys is just will drain one the start on the next. That will give you much longer shooting. On the D3100 you can take 550 shot on one battery. With two you get 2x550. That is the purpose of this grip. It also make shooting in portrait much better. I hope this helped.
1593063
After about 6 months, I started getting the error message. I purchased a NEEWER® Pro Battery Grip for Nikon D5100 EN-EL14 DSLR Camera from Amazon. Now, all I have to do is put the Nikon battery in first, and I don't get the error message. I have yet to completely run down both batteries in one session. Even with over 650 RAW images shot at an air show, there was plenty of battery left. As far as fitting the charger, it has to or it wouldn't fit the camera.