Dead Battery? - 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 > General Interest Forums > Gear & Maintenance
 Not a Member? 
  #1  
Old 07-18-2013
Member
 
Join Date: Jun 2012
Location: Brooklyn, NY
Posts: 38
Thanks: 7
Thanked 0 Times in 0 Posts
Rep Power: 0
juggleandhope is on a distinguished road
Dead Battery?

After buying my first sailboat last year I mistreated the battery. I never charged it off the boat (I'm on a mooring) and barely ran the outboard engine to power the alternator. This year it wouldn't start (luckily it has manual pull also). I bought a plug-in recharger and let it run a couple days but it still wouldn't start the engine. I bought a multimeter and it shows 12.6v when touched to the 2 terminals. Should I buy a new battery or is it possible I've got something hooked up wrong?

I plan to monthly do a day long plug-in and also to use a 5w solar cell for trickle-charging once I've got a working battery.
Reply With Quote Share with Facebook
  #2  
Old 07-18-2013
Captainmeme's Avatar
Senior Member
 
Join Date: Aug 2008
Location: East Tennessee
Posts: 683
Thanks: 2
Thanked 11 Times in 10 Posts
Rep Power: 6
Captainmeme is on a distinguished road
Re: Dead Battery?

When you say it won't start, does the engine go er-er-er or just click click click?

Does the engine turn over slowly or not at all? Are all of the contacts between the battery and engine clean and tight? Are the wires between the battery and engine in good shape? Sometimes the copper corrodes inside the insulation to a point where there is a large voltage drop across the wire, ie, the juice doesn't flow.

Before you send the battery to the great recycling center in the sky, take it off the boat, check the water level in the cells and if needed add DISTILLED water to the battery then charge it.
__________________
No such thing as a free cat, and that goes for boats as well.
Nor'sea 27
Reply With Quote Share with Facebook
  #3  
Old 07-18-2013
Junior Member
 
Join Date: Jul 2013
Location: Phoenix, AZ
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
az_r2d1 is on a distinguished road
Re: Dead Battery?

Check voltage while you try to start it and see how far it drops.

Also, try to find out how old the battery is. Should have some sticker on it with manufacture date.
Reply With Quote Share with Facebook
  #4  
Old 07-18-2013
Member
 
Join Date: Jun 2012
Location: Brooklyn, NY
Posts: 38
Thanks: 7
Thanked 0 Times in 0 Posts
Rep Power: 0
juggleandhope is on a distinguished road
Re: Dead Battery?

Thanks for the replies and the help trouble-shooting.

The battery was bought new in July of last year.

When I turn the key on the electric start there's only silence.

Will try the distilled water fix if it's clear how to get the top open. Will go look at it again today and also use the multimeter while someone else turns the key.
Reply With Quote Share with Facebook
  #5  
Old 07-18-2013
Captainmeme's Avatar
Senior Member
 
Join Date: Aug 2008
Location: East Tennessee
Posts: 683
Thanks: 2
Thanked 11 Times in 10 Posts
Rep Power: 6
Captainmeme is on a distinguished road
Re: Dead Battery?

Silence at the turn of the key? That sounds like an open circuit. Measure the voltage at the starter solenoid, I think that thing has 3 or 4 terminals, 1 terminal connected to the battery by a heavy wire, one connected to the starter again by a heavy wire and one connected to the key switch. Measure the voltage at the small terminal as the key is
turned, probably takes two people, a key turner and a measurer. Also measure the voltage across the battery when you turn the key, it shouldn't drop to zero when the key is turned.

If you decide to use the ohm function on the multimeter, disconnect the battery first.
__________________
No such thing as a free cat, and that goes for boats as well.
Nor'sea 27

Last edited by Captainmeme; 07-18-2013 at 12:03 PM.
Reply With Quote Share with Facebook
  #6  
Old 07-18-2013
Senior Member
 
Join Date: Oct 2011
Location: Victoria b.c.
Posts: 1,301
Thanks: 1
Thanked 9 Times in 9 Posts
Rep Power: 3
Capt Len is on a distinguished road
Re: Dead Battery?

If still silent, try jumping the solenoid directly./ The heavy wire from battery to the wire or post to starter.If only sparks ,its the starter. If it whirrs, look at the solenoid or wire from key.Test the solenoid by shorting big wire to start terminal.Usually a 25 cent coin works.

Last edited by Capt Len; 07-18-2013 at 12:27 PM.
Reply With Quote Share with Facebook
  #7  
Old 07-18-2013
Captainmeme's Avatar
Senior Member
 
Join Date: Aug 2008
Location: East Tennessee
Posts: 683
Thanks: 2
Thanked 11 Times in 10 Posts
Rep Power: 6
Captainmeme is on a distinguished road
Re: Dead Battery?

He could take the battery out of his car/truck and try it on the boat.
__________________
No such thing as a free cat, and that goes for boats as well.
Nor'sea 27
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
Dead battery? Classic30 Electrical Systems 52 07-26-2011 03:44 AM
Dead Battery on Catalina 25 SpcAlan1 Gear & Maintenance 7 09-05-2009 05:18 PM
Dead battery in 24 V bank serdeniz Electrical Systems 5 05-30-2009 11:14 PM
Dead Battery devildad Gear & Maintenance 0 05-06-2002 10:57 AM
Checking a Dead Battery Tom Wood Gear and Maintenance Articles 0 08-05-2000 08:00 PM


All times are GMT -4. The time now is 03:29 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