Good product with less Macke

Only a few weeks after purchase I have the (Patona) -Ersatzakku first used in my Sony SLT-A58.
OMG - the battery did not fit into the slot!
After close comparison with the original battery, I have nevertheless tried gently but firmly, to get the battery into the bay. Use the small leverage of the manhole cover is me then ultimately succeeded.
After repeated insertion "hooked" it now barely.
A now also purchased battery from another provider had no such problems.

At runtime I can for a charge cycle only say that I have found no great difference to the original.

The battery is otherwise working perfectly.

Because of the obviously large tolerances in the Passgnauigkeit but only 4 stars.