SailNet Community - View Single Post - battery twist switch accident
View Single Post
  #9  
Old 10-08-2013
Maine Sail's Avatar
Maine Sail Maine Sail is offline
Senior Member
 
Join Date: Jan 2003
Location: Maine Coast
Posts: 5,410
Thanks: 11
Thanked 125 Times in 93 Posts
Rep Power: 15
Maine Sail is just really nice Maine Sail is just really nice Maine Sail is just really nice Maine Sail is just really nice
Re: battery twist switch accident

Quote:
Originally Posted by Alex W View Post
On a diesel engine (and probably the A4 too) nothing will happen if you disconnect power while the engine is running. The battery is only used at startup to turn over the engine.
The batteries also serve as the load source for the alternator. If you open the circuit while the alternator is running, most boats are wired through the battery switch for the alt circuit, you stand a very good chance of blowing some or all of the alternator diodes and destroying the alternator.

Battery switches should not be flipped off when an engine is running unless you've direct wired the alternator to the house battery bank so it always sees a "load"...

The OP ideally needs to cover the switches or physically move them to a safer location.
__________________
______
-Maine Sail / CS-36T


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.




© Images In Posts Property of Compass Marine Inc.


Reply With Quote Share with Facebook