Modified BR2 with 6 batteries

Fiber BR2 with 6 batteries, forward Ping360 sonar, aft Imagenex 881a profiling sonar, SeaView SVS-109 multiplexer with 8 serial channels, 2 ethernet ports, 3 SD video channels and 2 ttl channels.

Now that’s a clever bit of tech. Any specific use that it has been built 4?

Thanks I put it together to do pipe and tunnel inspections. The multiplexer is overkill, but it’s nice to have plenty of options.

Pretty cool. Is this fiber only umbilical? Does it have any vertical thrusters?

Yes it’s fiber only and has two vertical thrusters.
I’ve been testing it with good results - over 40,000 mAh draws the batteries down about 1 volt. I think the batteries last longer because the load is shared between them all even with an hour of 40 amp draw and intermittent 100 amp draws.