So they were all 24 volt....good that solves that mystery...just Ebay BS...Black Cloud was the name of the dad/son scooter geeking service from "The Last Dive"...and yes the name fits as the thing had to go the shop as soon as I got it....then on a trip to the Dry Tortugas they changed generators while I was charging and one of the batteries popped, that was messy..but it still runs..would like to put the 200ft nose on it though. Any cheap way of beefing up the depth rating?