Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 14-10-2008, 18:38   #16

Posts: n/a
Originally Posted by Pelagic View Post
It completely dried out!

I put 22 litres of distilled water back into this one battery and have been re-charging for the last 4 days.

What gets me is the strong Sulpher-Rotten-egg smell that has been happening when I put a charge on it.

Is that normal?
NO! Absoluetly not normal. Rotten egg = hydrogen sulfide, and it is really bad for you, even at very low concentrations. This is not normal battery chemistry.

In my opinion you have taken your batteries and converted them to boat anchors. They have lost all but a tiny fraction of their original capacity if they even will hold a charge at all.

  Reply With Quote
Old 06-11-2008, 23:06   #17
Registered User

Join Date: Nov 2007
Location: South East Asia
Boat: 122 year old Historical Sailing vessel
Posts: 121
I have the same charger inverter and mine has never given any problems at all, well other than going wonkie when my BEP battery switches melted at 1/3 their rated amps. There is a " reconditioning" setting for that unit. I forget what it is called. I have AGM batteries so never use it. What it does is pump 15+ volts at very little current into the batteries and is suposed to clean the plates of sulfates etc. If you are one very lucky man you may have had that function set. That will boil off the water, in fact that has to do with the cleaning according to the manual. Recheck your settings and best of luck. Batteries are always a pain but buying them is even more so.

H/V Vega is offline   Reply With Quote
Old 07-11-2008, 08:19   #18
Registered User
richardhula's Avatar

Join Date: Nov 2008
Location: UK
Boat: S M Hudson 60' narrowboat
Posts: 347
Send a message via Skype™ to richardhula
Everyone has their own opinion on battery maintenance, & advice that works for one person might not work for another without knowing the EXACT state of the batteries cells.

Certainly one thing is clear, GEL batteries require a lower charging float/equalise voltage typically 0.25 to 0.4v less in a 12v battery than lead acid (not as reported above). Whilst GEL & AGM batteries are very popular given that they are maintenance free & in the latter case light, most people still regard the good old lead acid full traction battery for boats as they can be charged hard & fast, last 5-10 years, but do require regular checking/topping up of electrolyte.

Most modern switch mode four stage chargers have adjustements for the type of battery you are using, some as many as five different modes. Make sure the charger is set to match the batteries & use the same type within a battery bank.

If a cell dies it often does so with a short circuit. In the case of a 12v battery this means the remaining three cells share the charging voltage of four & get seriously overcharged, develop great heat & must be isolated as soon as possible. Generally this only affects the faulty battery.

Note also that new batteries are stored dry charged. i.e. they are fully charged after manufacture then all the electrolyte is drained out. This gives them a long shelf life in the dealers & allows for safer shipping, but requires filling them with battery acid (not distilled water) before use. For this reason beware of any new batteries you may purchase already filled with electrolyte. They start ageing as soon as that happens.

If in doubt RTFM
richardhula is offline   Reply With Quote
Old 07-11-2008, 12:03   #19
Registered User

Join Date: Nov 2005
Location: Ohio
Posts: 2,320
Sams Club, $60 for a 6 volt golf cart battery.
Joli is offline   Reply With Quote
Old 07-11-2008, 18:02   #20
Eternal Member
Chief Engineer's Avatar

Join Date: Aug 2006
Location: North of Baltimore
Boat: Ericson 27 & 18' Herrmann Catboat
Posts: 3,798
Those Sam's Club Batteries are ok with customers recommended them
Chief Engineer is offline   Reply With Quote
Old 07-11-2008, 20:37   #21
Registered User

Join Date: Oct 2007
Location: virginia
Boat: islandpacket
Posts: 1,881
I think you had a bad battery before you replaced the inverter, hence the low out put. Then the new charger did its thing and the bad battery caused overcharging all the way around. If I was going out for any length of time I would never trust the batteries. I would pull them all out and take them to a Battery Mart place and have them tested overnight. Then its either good or you need to replace. Even if one battery is OK you will get better life if they ALL are the same type and age.

That derelict boat was another dream for somebody else, don't let it be your nightmare and a waste of your life.
Badsanta is offline   Reply With Quote

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Batteries ? ? ? S/V Mother Ocean Multihull Sailboats 31 30-12-2008 20:00
12v batteries vs 6v Hankthelank Electrical: Batteries, Generators & Solar 13 30-07-2008 05:07
optima batteries haroldc Electrical: Batteries, Generators & Solar 23 14-06-2007 04:38
6V Trojan VS 8D Batteries alanperry Electrical: Batteries, Generators & Solar 10 27-03-2007 11:33
Valence batteries Whimsical Multihull Sailboats 2 11-01-2007 16:35

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 00:46.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.