Renault Scenic 2 (spend the control battery)

Hello, I am new in the forum, I have a problem with the centralized closure of my Scenic 2, the command was not able to open and close the car, but I changed the battery and worked again, at approximately 2 weeks the opening and closure with the remote control began to fail again, I changed the stack for the second time and operated again, I have changed the battery 3 times in a month.
What is that battery expense due to command?

Most likely, K has a contact, go to the Renault and they look at you, it costs you anything.

And as a second hypothesis, it may be K command, you leave it somewhere in the K is constantly pressing some control button.

thank you so much