SailNet Community - View Single Post - Electric Conversion log for Kahleesea
View Single Post
post #164 of Old 02-21-2019 Thread Starter
Captain Canuck
Senior Member
 
Join Date: Oct 2014
Location: Deale, MD
Posts: 375
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 6
 
Re: Electric Conversion log for Kahleesea

Quote:
Originally Posted by boatsurgeon View Post
Any number of DC-DC converters are not the same thing as 12 Vdc emergency reserve capacity.

Failure of the 48 Vdc propulsion electrical system renders every DC-DC converter instantly inoperative, and as a result, all 12 Vdc electrical system equipment including safety, navigation, and lighting.

Cripes, the 12 Vdc lighter socket won't even work so you can sit back and have a smoke (along with your hair and the boat) while you reconsider the validity of your choices. ;-)
What, exactly, do you expect will happen to knock out all 4 batteries in the pack at the same time? The batteries are wired in parallel, so any one battery failure just reduces the total capacity available.

Anything I can come up with while sailing that would kill all the batteries at once would also kill me simultaneously or sink the boat, rendering the 12v system irrelevant anyway.
Captain Canuck is offline  
 
 
For the best viewing experience please update your browser to Google Chrome