My nex-5n gives a warning and then shuts down when I use the 3rd party batteries that I was using with nex-5. I don't know why. Does anybody have recommendation for 5n?
There are many batteries out that work. Just look which info-chip they use. Usually you can trust amazons user reviews here - if they say it works on your NEX, than it should work. Otherwise, it's at least easy to send it back to Amazon.
Actually, I went through the amazon reviews for my recent (end of march 2012) purchase. I found them:
1) Mostly wrong. Many batteries incompatible with my NEX-C3 as stated by the camera, but apparently worked fine in other Sony cameras.
2) Not up to date.
3) Don't address the current firmware, (and possible Sony modifications to battery tolerances).
4) Possibly compatible with NEX-3 and NEX-5 and not C3 and 5N.
The sheer plethora of 3rd party batteries make it impossible to decide who really has the goods on Amazon, and imho the reviews for each generic are too sparse to be trusted.
Sorry thats all the detail the battery had printed, they delivered to work and I left the paperwork there, will try and find tomorrow a and let you know!