Prima part, I use it with my Pentax K-50th The battery holder is properly processed, fits neatly into the camera, the batteries holds really and is many times cheaper than the original part. What more do you want? In addition, you can reach with inlaid Ni-MH batteries have a significantly longer duration of the camera than with the standard battery. So Pentax himself writes in the instructions of the K-50 that with the battery about 480 shots (without flash, at 23 ° C) are possible with 1900mAh Ni-MH batteries Alike 580 pieces. From experience, the difference would, however, appreciate even greater. Recommended Ni-MH batteries with 1900mAh are, for example. "Eneloop" battery, 4 piece costs 10-15. I operate the camera today exclusively with these batteries and use the supplied Lithium battery only as a last reserve when all Ni-MH batteries are depleted.
