Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Does this battery work with NEX-5R?
Document: You can't judge a battery in 1 week but if your camera accepts it's chip is vital. My NEX-C3 does accept the STK battery. I've wasted money on 3rd party batteries for my Panasonic Lumix on Amazon that the chip was recognized as not legit and they wouldn't work as all.
I'm using it as a backup to my SONY proprietary battery that came with the used SONY NEX camera I just bought on Amazon. Seems to work just fine. The price was significantly cheaper than the proprietary SONY replacement battery. Came on time in new condition.
Although this battery doesn't perform as well as the original Sony battery that came with my Sony NEX 7.. it does work as a backup.I tried to use it in my NEX 5 and it was kinda glitchy.. but did end up working.If you don't want to spend the money to get an original, and are in need of a back up this will work.
My approach to buying almost anything has always been - Only pay what you have to and no more - While it doesn't always work, on this occasion it did. This battery is as good as OEM one.
I have an older Sony camcorder for which this is a large capacity battery. Not OEM Sony but seems to work fine and holds a long charge as advertised.
These batteries work just as well as the much more expensive Sony battery in my A55 camera. I can't tell the difference between the OEM battery and this one in use.
Appears to work as long as the (new) original battery. Fits perfect. This product is a good quality replacement for the original Sony NP-FW50 battery.
Seems to work every bit as well as the name brand version of this battery that sells for more. After two years still going strong, fits our charger just fine. Great to have an extra battery. No problems.
I was looking for a backup battery... not too expensive! I got it! This is a quality productthat works as well as the original. I have never had problems with 3rd party batteries. Inever buy the real cheap-o batteries, because they don't have enough profit to put goodstuff in the battery. These batteries have the good stuff: Japanese cells, precision madecases, and chips that work.
Was defective. I got a Sterling Tek battery that was also defective, and thought there must've been something wrong with my camera. Sterling contacted me to make sure the battery they sent me worked, and when I told them it didn't, they gave me a refund and sent me multiple new batteries and a car charger. Those batteries work. Even if that doesn't happen to you, you could get a working battery for half the price of Sony. So why not!
Answer: From what I seen on their website it should work without any problems. I got it for my Sony alpha NEX-F3.