This seemed like a good chat to join into as we are exploring the same thing.
We’ve bought a bluerov2 and an extra 6 thrusters (really some of this is just for fun). At the moment I’d like to work off batteries in currents between 0.5 and 0.7kts and anecdotally this is apparently quite hard using the current levels of thrust. I’m looking at taking four additional lateral thrusters and parallel’ing these to the existing thrusters.
In terms of signals, I’ve got four y-pieces to just connect up to the Pixhawk and then hook up to each pair of ESCs respectively.
The trouble I see is that I’d like to be able to use a second battery, I guess in parallel without overloading the current ratings of the batteries, wires and potentially one of the busses.
I believe it may be feasible to run a second buss-bar inside the pod to drive the additional thrusters, but here’s the important question - are there additional modifications I need to consider such as mis-balancing of the two separated battery packs. Do I need to couple the two bussbars (i.e positive to positive and return to return).
What are the dangers?