On behalf of malko on the eab.abime.net forums I post this bug report:
"Fired up the game to quickly check and it finally happens that the bug appears with the battery on the left & laser on the right (whatever height position)"
Thank you for taking the time to post me this bug report :) I am aware of this bug and it will be fixed in next update!
Great! :) I'll post your answer and am looking forward to the update.