Batteries drinking a liter of water each / Xantrex - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Electrical Systems
 Not a Member? 
  #1  
Old 07-27-2010
Member
 
Join Date: Sep 2007
Location: Northern California Wilderness
Posts: 48
Thanks: 6
Thanked 0 Times in 0 Posts
Rep Power: 0
granche1 is on a distinguished road
Batteries drinking a liter of water each / Xantrex

First of all I am pretty new to boat ownership and 12 volt systems so please bear with me. I recently acquired my fathers crealock 37 after it had experienced a few years of neglect, unattended in mexico. In December I went down to mexico and after a couple of months, got the boat back cruising. The LifeLine AGM batteries seemed toasted so I replaced them with 5 marine flooded deepcycle batteries from walmart and headed on out for 5 months. Great times were had! I left the boat in Puerto Vallarta in a slip plugged in with the charger set to float. The charger is a Xantrex Trucharge 40 and it is set on the flooded setting with the temperature set to hot. I have been gone from the boat now for 4 months but I have an inexperienced friend who has been kind enough to add water to the batteries every 2 months. It seems that the batteries are taking a liter of water to get back up to full. Does this indicate that the batteries are being over charged and if so, why would my charger be doing that? Thanks for any insight. grant
Reply With Quote Share with Facebook
  #2  
Old 07-27-2010
denverd0n's Avatar
Senior Member
 
Join Date: Jun 2008
Location: Tampa, FL
Posts: 829
Thanks: 0
Thanked 16 Times in 16 Posts
Rep Power: 7
denverd0n is on a distinguished road
Yes, excessive water use usually indicates over-charging.

Why would your charger be doing that? There could be a dozen different reasons. I would try to get down to the boat with an accurate digital volt meter and see exactly what the float voltage is.
Reply With Quote Share with Facebook
  #3  
Old 07-27-2010
Stu Jackson's Avatar
Senior Member
 
Join Date: Jul 2001
Posts: 769
Thanks: 0
Thanked 6 Times in 5 Posts
Rep Power: 13
Stu Jackson is on a distinguished road
Keeping wet cell batteries on float forever is not good for them. They will dry up. The two best things you can do for them: either leave them fully charged and disconnected, or get a small solar panel to offset the small amount of self discharge of wet cells.

Read the Ample Power Primer, tech tab, www.amplepowerprimer.com and the West Marine Advisors, here: The West Advisor: West Advisor Articles scroll down to electrical

They explain battery charging systems.
__________________
Stu Jackson, C34, 1986, M25 engine, Rocna 10 (22#)
Reply With Quote Share with Facebook
  #4  
Old 07-27-2010
TQA's Avatar
TQA TQA is offline
Bombay Explorer 44
 
Join Date: Apr 2009
Posts: 2,410
Thanks: 0
Thanked 31 Times in 27 Posts
Rep Power: 6
TQA is on a distinguished road
Hmm another possibilty is that you have a battery with a dead cell this will cause the charger to "see" that the bank needs more charge and ALL the cells get overcharged. I replaced the 2 house batteries in my RV with marine deep cycle batteries from Wamart and in 2 years had 3 maybe 4 go bad. It is an easy check - separate the batteries and check the voltage under load.
Reply With Quote Share with Facebook
  #5  
Old 07-27-2010
svHyLyte's Avatar
Old as Dirt!
 
Join Date: Nov 2008
Location: Tampa Bay Area
Posts: 2,512
Thanks: 11
Thanked 82 Times in 78 Posts
Rep Power: 6
svHyLyte is on a distinguished road
Since you stipulated 5 batteries I assume they are 12 volts each hence each will have 6 cells for a total of 30 cells. A liter of water is about 33 ounces or slightly over a quart indicating that each cell is requiring slightly more than an ounce of water every two months. Frankly, considerig the environmental conditions--Mexico/Summer--that does not seem like an unusual amout of water at all. Depending upon how long you will be gone, however, it might have been wiser to simply turn everything off, including the master switch to the batteries, which would loose only roughly 1-1/2% to 2% of their charge per month which could be restored with only a few hours of charging once a month.

FWIW...
__________________
"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
MacGregor 26 vs. ? jiml2p Boat Review and Purchase Forum 199 10-01-2012 02:34 PM
Windward performance deseely General Discussion (sailing related) 21 04-01-2012 02:42 PM
Are You Filtering your Fresh Water? stuartsw Provisioning 38 02-05-2010 01:06 PM
Water Ballast/Manufacturer RSJ Boat Review and Purchase Forum 6 03-07-2002 05:59 PM


All times are GMT -4. The time now is 04:20 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012