Crossbow Classic Pi Question

[pusateric1]

I am building a rev.c crossbow. I have decided to use a 3s1p 11.1v lithium ion battery.
My concern is if the board’s stock charging circuit can be used to charge this battery if it has a bms built into the battery? Has anyone done this or do people typically remove the battery to charge? I’m trying to make a waterproof detector so that would be less than ideal.

Thanks