I have an F450 quadcopter frame with the integrated Power Distribution Board. In order to use this feature, I soldered the battery (XT60) and the four ESC (Dean-T) connectors. I tested the continuity with a multimeter and it seems that everything is soldered fine since the measurements are completely normal. My concern is that when I connect all the different parts (motors - ESCs - battery) the voltage of the LiPo battery keeps dropping even when I am not sending any command to the motors. I just plug the battery and its voltage keeps diminishing. Is this normal or is there something wrong with my soldering connections ?
I am using a 3S LiPo battery along with 4 brushless DC motors (1000kV) and 30A ESCs.
P.S.: Same thing happens if I use a separate Matek-XT60 PDB instead of the frame's integrated one.