Because of the 6 batteries there is not enough space for the electronics in the box - so I put them in an extra box (Sidewinderidea by Oli from @Beenee-foilsports). This aluminium box also serves as a thermal mass to cool the esc.
At the moment I´m planing the Batteryconnections. As I´m using 6 Lipos 6S/1P I connect them first into 2 6S/3P with an Adapter and then together to 12S/3P. I´m not shure what I have to do with the Balancecables when the Lipo is in my Foil Assist- Do I have to connect them also in a way?
When I`m charging the packs , I have a ParallelAdapter, where I can plug in the XT60 and the Balancingwires.
You don’t need to connect them. If you want, you can connect a LiPo beeper (just to one) to get an alarm when cell voltage is going below a setable threshold, i.e. 3.4V. Starts to beep when one cell of the connected pack reached 3.4V.
1-8S Lipo Battery Voltage Tester/ Low Voltage Buzzer Alarm/ Battery Voltage Checker with Dual Speakers https://a.aliexpress.com/_EGayUfq