Best non-oem camera battery manufacturer?
I want to get a spare battery for my Samsung NX11 (BP-1310).
Of course there are hundreds available on the web, Amazon, eBay etc. for as little as £5 but their quality is unknown.
I can see items from: Blumax, Mobilizers, Ex-Pro, Duracell (more expensive & with a bad review), Invero, Akku, Ansmann, Inov8 etc. etc.
Which non-oem manufacturers do you trust?