Problem with batteries Bosch powertube 625 or 750

[DSAGT]

So, I have Focus Aventura 2 6.8 from 2017 or 2018 and I've Lost my original battery so Im gonna buy a New one. Not sure het whegher powertube 625 or 750, but please, please help me with this becajse I have no idea whatsoever that should I buy the battery version that says horizontal or the vertical one? Rly appreciate your time and hoowgjlly someone knows the answer so I can order the battery tonight already

Kind regards,
Sebastian

 

[Dirthog]

Does the battery mount externally on the frame or internally into the frame? I believe the powertube batteries are internal mount only.