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116 of 119 people found the following review helpful
on February 27, 2012
I got this product for my Nikon D5100. Works great for me. There are some people out there confuded with Non-OEM EN-EL14 compatible batteries.

Nikon designed EN-EL14 by inserting a chip that has unique signature inside Nikon EN-EL14 battery. D5100 and D3100, at the power on reset time, check the existing of this chip. If the camera did not find the chip signature, it displays an error message saying "This battery cannot be used. Choose battery designated for use in this camera" and freezes.

When you use two Nikon EN-EL14s for this battery grip, you should not have any problems. You should have at least one Nikon made EN-EL14 for this simple trick.

I have one with Nikon EN-EL14 that came with camera and the other that I bought from Internet for $7.50 ~ $12.00. Obviously the second one does not have the chip inside. In order to make this combination works all the time, you first attach the battery grip to the camera and remove all batteries from the grip. (This is importand step.) Then next important step is to insert Nikon EN-EL14 first. It does not matter to the left or right battery slot. Then insert the other battery. Then turn on the camera power. Once you have at least one of the batteries inside the battery grip, you don't have to repeat these steps until you disconnect battery grip or remove both batteries from the grip.

The camera only check the exsiting of the chip at power reset time (from no battery condition to battery connection time), not power on switch time. So power on/off does not matter for camera's battery signature check.
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20 of 20 people found the following review helpful
on August 22, 2011
Hoping that Nikon will release their own version of this, but until then this one is perfect for the price. Fits well and looks nice on the D5100 and with the extra battery, the D5100 feels nice. The grip area is also nice. The only reason I don't give it 5 stars is for two things, first the little wire that you need to connect from the battery grip to the camera is a little annoying but I can live with it especially for what I paid for this item. The wire just makes it look a bit strange but not a big problem and when you take out the screen and flip it, sometimes you bump into the wire, but not to big of an annoyance. Secondly, when you are shooting vertically it is a bit difficult to move the AF point unless you move your hand up to the cursor to move it, then back to use the shutter on the battery grip. Other than that, works well and looks nice, makes the camera look like a pro camera.
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14 of 14 people found the following review helpful
on December 16, 2011
First, I don't think Nikon planned to make a battery grip for the D5100 or D3100, because they did not include contacts inside the camera to accept signals from the shutter button on an grip. Because there is a demand for the function, the copycats went to work and made this gadget and many similar versions of it. They are not made by Nikon, of course.

It's cheap. A Nikon version would cost 10 times as much. It's not Nikon quality and it feels a little flimsy. It works, but... Sometimes the camera says the battery is not compatible with the camera, even if you use Nikon batteries. It seems that re-inserting the grip in the battery will somehow get around this. I don't understand why, but this works. By the way, there are other versions of this available elsewhere that come with the an extra tray to accept 8 AA batteries, but for some reason they are quite expensive ($100+).

It comes with a short external cable that goes from the grip to the camera remote shutter connector outside the camera -- not elegant but functional. It allows the shutter function on the grip to work (that's what Nikon left out inside the camera). Possibly Nikon thought nobody would ever want to use a grip with the tiny D3100/D5100 cameras, but of course people do. One of the main reasons is that this grip also allows you to use very cheap $7 clone batteries instead of the Nikon $41 batteries, which for some reason you can't do with the bare camera.

I have not seen it from Nikon yet and the D5100/D3100 cameras have been out for a long while now. I don't think Nikon will ever release a similar product, because we're close to end of life on the cameras. By the way I have seen products with Nikon Logo packaged in Nikon logo boxes that are called Nikon MB-D31 or MB-D51, but they are brazen fakes. You buy them direct from China or Hong Kong on another website. They are not listed on the Nikon USA site. Nikon does not make them -- they are complete and utter fakes from the land of poison milk and honey.

So there is more than you ever wanted to know. If you buy this, you should be braced for its quirks. I gave it four stars because for the price, it works well enough.
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18 of 20 people found the following review helpful
on October 15, 2011
So, I have re-review my last review, if that makes any sense. The seller, excellent. Kept in contact with me the past few days while I was having issues with the product. I received the product earlier than expected, which was super. However, upon opening it I received two message. First message, "Cannot use the batteries, please use batteries for this product." The two factory bought batteries weren't working, really? However, I knew from other reviews if you kept at it and did some weird technique it would work, and sure enough it worked. But it doesn't end there, when I got past that message, it had stated the my batteries, fresh and fully-charged Nikon D5100 batteries, were low, thus locking the shutter. I doubled, tripled, and quadruple checked and still no luck. So I went to an event this weekend with no grip. For $18, I would at least, expect it to work. So I contacted the New Harbor, and they were super nice about the situation and kept in contact with me. So when I got home this afternoon, I decided to give it another go, $18 product, maybe it just needed a rest. Sure enough it worked, after getting past the "Wrong Battery" error, it worked fine.

So a couple of notes about the product itself. It feels really cheap and plastic, which it is. The vertical shutter button, feels odd, you can barely feel it click. I would suggest for Amature/Serious hobbyists, like myself, starting off with this camera, to NOT use it on shoots due to the "wrong battery" error, it pops up at random and when you are on a shoot, you want to minimize room for those types of errors that can cost you a minute. However, if you are walking around and just taking casual pictures and you have the patience to get past the error popping in and out, it will do just fine.

The reason I am giving it a 3 is because this isn't something you can use on a shoot, which is what the grip is for. The material on it feels weird. But for $18 bucks, its okay.
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19 of 23 people found the following review helpful
on August 29, 2011
I LOVE this battery grip! It has a nice feel to it and holds and uses two batteries which has greatly lengthened shooting time. It feels reasonably sturdy for the price and was easy to setup and use. It is very easy to get batteries in and out for charging and has a tripod thread on the bottom that works perfectly so I never take this grip off, To get it off however is extremely easy with a thumb wheel action. I HIGHLY recommend this to any new DSLR owner. I am using this with a Nikon D5100 and it fits this camera perfectly (which it should since it's made for this model). The instructions are light and tiny and they could fix that however it was still very easy to put on.
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15 of 18 people found the following review helpful
on August 11, 2011
this is not the first time i bought this brand of battery pack... i got one for my d60 and it fits perfectly and when i saw that they have a pack for a d5100 rather than modifying a d3100 pack... placed it my cart...click buy. And again it didnt disappoint me it fits perfectly... construction is kinda light... light in a good way ok... cuz you know you need to put 2 batteries there.. in terms of durability i havent dropped it yet and i have no intention to all in all highly recomended for all nik d5100 users out there
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7 of 7 people found the following review helpful
on October 3, 2011
This product works as it should.
I was able to set this up in a few seconds.
It extends battery life and allows me to keep clicking with the D5100.
Makes the camera a whole lot more fun!
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5 of 5 people found the following review helpful
on June 10, 2012
this is an update - what follows is correct but my unit recently broke - the mini plug connector to the unit is fragile and prone to breaking - do not store your camera with the battery grip on it in your camera bag without first removing the connector. This is very good battery grip for the D5100 but it does have its issues. Nikon missed out big time on not offering their own version - yes it would have been more expensive, but it also would have been more professional and robust (Nikon is known for their excellent, very expensive battery grips). this one is made of smooth, cheap plastic that since it does not have a textured covering, can feel rather slipper after hours of use. you need to use at least one offical Nikon battery in the unit but i have had no issues using a third party battery as the 2nd unit in the compartment. it gives the d5100 more bulk for shooting and the indispensable shutter release for vertical shooting. i have used the grip professionally for sports (baseball is ok, basketball is poor - the auto focusing system on the d5100 is not as advanced as the one on Nikon's more professional cameras and it has big issues focusing in the dark caverns we call high school gyms) and the grip worked great. definitely an accessory worth buying and the price can't be beat!!
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5 of 5 people found the following review helpful
on January 24, 2012
I read lots of reviews of the cheap batteries not working with the 5100 unless you used a battery grip. So, instead of getting an extra brand name battery, I got this grip with a cheap battery for considerably less. Plus, I'll have longer battery life for when we take this on trips. My d5100 seems to rip through the battery a lot faster than my d40 did. The only negative for me is that it does make the camera a little big for my small hands, but if you have larger hands, that may be a plus for you. By the way, I inserted the grip into the camera, added the Nikon battery, then the no name, then turned the camera on. I had no problems getting everything to work.

UPDATE: I ended up returning this battery grip because I just couldn't get used to how large it made my camera. I opted to just buy a spare Nikon battery. If you want to make your camera a little bigger, I still think it's a good product that works well.
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7 of 8 people found the following review helpful
on August 7, 2011
I have had this item for a few days now and so far it seems to be exactly as advertised. Had no issues getting it to work. Vertical shutter release button feels good. Does add considerable weight to the camera with the 2nd battery. No issues so far at all. Decent build quality considering the price.
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