Lime2 autostart when power + battery connected

[neskein]

hello,
I'm testing the latest (kernel 4.5) jessie server vanilla on a Olimex Lime2.
If a battery is connected to the board and the power plugged in, the board start by itself !
I would like to change this behavior, is there any file to tweak ?
Thanks

[LubOlimex]

Not sure about that one. Might require tweaking with the AXP209. Describe how would you imagine the board starting?