Had this battery now quite a few times in my Samsung NX30 in use and can find regarding performance / endurance no difference to the original Samsung battery -. Hope it stays that way! I only feel the Patona battery discharges initially slower (longer display at 100%) and later faster than the original, which "uniform" seems to be over capacity. I charge the battery in general in my Samsung NX30, which (of course) works fine.
Top-battery and good price, so strong buy recommendation!
