Much cheaper than the original, it seems to hold a charge well, for now I am satisfied. We will see in time. Edit: Obviously this battery does not seem to hold a charge well, after 3 loads, used on my Pentax K3, placed in the grip she began to seriously falter after half an hour of consultation of K3 menus, and proves weak ( to the point of not being able to provide anti dust or sensor cleaning function). Do not expect to do more with 100 phots ... :-(