can not be evaluated properly ..

I have for almost 10 years an Oral B toothbrush Professional in use. That was at the time a set of 2 devices. A device of this was packed in a travel case with attachments for 2 attachments, ie intended for the journey. This is exactly what we have also used.
But that age the battery does not differ, I have often swapped the device. Now, after all this time the batteries of both devices are often reload that I have chosen for the exchange.
Technically no problem for me, the Internet can help with instructions. I ordered the same 2 batteries to both units to make afloat again.
First, the price is ever quite high. Because I get the battery in R ... orld for less than half. When removing the old cells have to have to solder and have the right tools (goes best with desolder wick).
When installing minor issues:
the connection lugs of the replacement cells are differently shaped and I had to cut the flags and bend to the other side, so that everything is properly seated. Beginning quite a fumbling, but everything worked.
I can of course give at this point no conclusion about the capacity and the longevity that turns out after prolonged use.