General Remove front passenger seat

[JoePGM]

Hello there, my van is a Doblo 2017 1.6. It is converted to a camper van and has a leisure battery installed under the front passenger seat. I want to swap out the battery, by do that I need to remove the front passenger seat.

I can't find out all the screw point the de-rail the seat from rail, or decouple the seat with rail all together as well. Can anyone show me the procedure to lose the seat?

Thanks!

 

[TheDoblongandWindingRoad]

Is it a professional job? Can you talk to the company that fitted the battery originally?
Is it fitted under the front (passenger footwell) or behind the seat (what would be the MPV version middle seat footwell)? Or slap bang in the middle?