Okay so I connected the BMS and started charging. The charger LED was red, meaning it was charging. After a while I disconnected and checked voltages, both lipos on 16.9V which is normal since the charger stops at 4.25V per cell.
However, when I reconnected everything (without the charger), the BMS got quite hot. I noticed that this happened when I connected the balance cables. So I am assuming I wired something wrong but have no idea what… The esc wires are not connected which should not matter right?
Don’t forget, charge only bms’s are normally much smaller also. And having a seperare e switch means being able to charge with your speed controllers off.