> > > >

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Tiara Open 2000 3100 no dock AC power, what would draw my house batts down from 12v to 9v?
Offline
Tomkitko Offline
Scurvy Dog
Posts: 1
Threads: 1
Likes Given: 0
Likes Received: 0 in 0 posts
Joined: Nov 2020
Home Port: Southport, NC
Vessel Info: 3100, yr2000, twin 7.4L.
#1
11-11-2020, 11:20 PM
Lost dockpower AC 90 days ago with storm surge. Batteries charge with alternators while running.
Only house batteries draw down over night, dramatically. Even when I switch the house batteries to off on panel Under the steps?
Thoughts ?
Share
Like Post Reply

Offline
Matta0413 Offline
Captain
****
Posts: 229
Threads: 45
Likes Given: 0
Likes Received: 17 in 12 posts
Joined: Dec 2016
Home Port: Long Island Sound
Vessel Info: 3100 Open, 2002 Model Year, 8.1L Crusaders
#2
11-12-2020, 10:31 AM
Have you load tested the batteries? How old are they? The only things that should be wired directly to the batteries are the bilge pumps. If your battery switches are off and your batteries are going from 12 to 9 volts over night I would start with checking the batteries. Also, if you have the same Balmar Alternators that I do just running the motors at idle at the dock will not charge your batteries. Need to be above 1000 RPM.
Share
Like Post Reply
Offline
reeltimebrad Offline
Captain
****
Posts: 163
Threads: 12
Likes Given: 29
Likes Received: 17 in 17 posts
Joined: Dec 2016
Home Port: South haven,mi
Vessel Info: 2006 3200 0pen 8.1 crusaders
#3
11-13-2020, 06:51 AM
co detectors are probably hard wired also.
Share
Like Post Reply
Offline
Sans Peur Offline
Admiral
*****
Posts: 478
Threads: 8
Likes Given: 14
Likes Received: 67 in 62 posts
Joined: Apr 2018
Home Port: Port Canaveral, FL
Vessel Info: 2003 Tiara 50 Open 3406E Cats
#4
11-13-2020, 06:54 AM
Sounds like you have a bad battery or two. One bad battery will pull the others down with it.
[-] The following 2 users Like Sans Peur's post:
Donaldjames (11-27-2020), Misdirection (11-18-2020)
Share
Like Post Reply
Offline
Uhehner Offline
Admiral
*****
Posts: 494
Threads: 22
Likes Given: 1
Likes Received: 25 in 24 posts
Joined: Apr 2012
Home Port: Stuart, FL
Vessel Info: 1988 36' Convertible with new 8.1 Crusaders. Exceptional condition, inside, outside, bilges and engines.
#5
11-18-2020, 04:55 PM
(11-13-2020, 06:54 AM)Sans Peur Wrote: Sounds like you have a bad battery or two. One bad battery will pull the others down with it.

I agree, that's why I never leave my battery selector switch in BOTH.
Share
Like Post Reply
  


Possibly Related Threads...
Thread Author Replies Views Last Post
  [Tiara Open] 1989 3100 Open Wiper Arm Removal mmcintee1985@gmail.com 10 1,344 11-24-2025, 09:21 PM
Last Post: cp4000
  [Tiara Open] Need Source for Scuppers, 1995 3100 E-MAN 2 484 09-02-2025, 10:31 PM
Last Post: E-MAN
  2001 Tiara 3100 Open wipers IrvingVet 4 5,034 08-23-2025, 01:32 PM
Last Post: nylakeshome
  Replacing fuel full hose 3100 Open Joeboch348 1 657 08-20-2025, 03:53 PM
Last Post: S4Survivor
  2004 3100 Alternator mpulver 2 720 07-31-2025, 02:10 PM
Last Post: mpulver



Users browsing this thread:
1 Guest(s)

Sponsors

Home
Search
Help
2000 3100 no dock AC power, what would draw my house batts down from 12v to 9v?00