Im sure I read somewhere that theres something that can be done with twin packs to extend the run times
You can run the batteries in series, which will give you more power, or, you can run them in parallel, which will give you a longer runtime. Also, theres another thing you can do called "throttle management". When your boat gets up on a plane you can let off the throttle enough to just keep it on a plane. This will make your run time longer.